50 Hz. GS20-GS21-GS30 Series. FIXED-SPEED PRESSURE BOOSTER SETS WITH VERTICAL MULTISTAGE ELECTRIC PUMPS e-sv SERIES. Cod.

Transcription

1 Hz GS-GS1-GS3 Series FIXED-SPEED PRESSURE BOOSTER SETS WITH VERTICAL MULTISTAGE ELECTRIC PUMPS e-sv SERIES Cod Rev ev.b.b Ed.6/1

2 CONTENTS General introduction...3 Choice and selection GS.../SV Series Range Characteristics of the electric pumps Hydraulic performance tables...19 Electric data tables... 7 GSD - GSY Series GSD1 - GSY1 Series GSD3 - GSY3 Series Operating characteristics at Hz Hc pressure drop curve Accessories Technical Appendix...17

3 BOOSTER SETS GS SERIES GENERAL INTRODUCTION - PRODUCT DESCRIPTION The GS series pressure booster units mainly comprise pumping stations assembled with two or three SV series vertical multistage pumps, or with FH or SH series enbloc horizontal pumps. A smaller pump can also be added to the main ones. Generally known as a jockey pump, it provides for minor usages in order to maintain system pressure without starting the service pump. The GS series pressure booster units are constant speed sets and are used to distribute water in heating or filling systems. The pumps are mounted on a single base together with the other hydraulic components, such as on-off valves, check valves and the delivery and return manifolds. The electrical panel, supplied with a mounting bracket, is attached to the pressure booster unit base. The pumps start and stop according to the signals sent by the pressure transducer to the electrical control panel. The latter is fitted with an integrated electronic board. The pumps start and stop automatically depending on the water demand of the system. These pressure booster systems are combined with suitable expansion tanks in order to guarantee stable operation and reduce the starting frequency of the pumps. For the correct choice in capacity of the expansion vessel, see the relative chapter on page 116 of the catalogue. DESCRIPTION OF OPERATION The pumps start and stop according to the set pressures detected by the pressure transducer, thus ensuring the required amount of water is delivered. The pressure values can be directly set on the electronic board. For units with jockey pump, the latter will start first and stop last, depending on the set pressure values. When a tap is opened, water is drawn off from the tank, the pressure starts to fall until it reaches the starting value of the first pump. The delivery of water increases, the pressure falls even further and the other pumps start in sequence according to the demand for water. When consumption falls, the pressure in the system increases and the pumps stop when the set threshold pressure values are reached. If consumption falls to zero user demand, the last pump also stops. If the timer function is used, the last pump to work will remain operating for a set time after it is switched off, in order to reach maximum pressure. Make sure the maximum pressure is compatible with the system in which the pump is installed. Example: GS series pressure booster units, operation. H Stop P1 P P3 Pump 1 Pump Pump 3 P1 Start P P3 p Q p pressure differential between pumps, can be reduced to, bar. 3

4 BOOSTER SETS GS SERIES CHOICE AND SELECTION The demand of a water distribution system is generally determined by the designer according to the type of user structure being served. Users can be schools, hospitals, homes, offices, industries, hotels, shopping centres and for each the water demand changes due to the different requirements of the people living and working in these structures. To find the correct flow rate for the system in question, it is possible to consult pre-calculated tables that give an idea of the flow rate for the typology of user to serve (see pages in this catalogue). Integral system calculation, instead, prevents excessive oversizing and therefore reduces running and installation costs. The theoretical water demand is calculated by summing the demand of each user. As, however, it is improbable that all users will want to use water at the same time, real demand is lower than theoretical demand. After defining the flow rate of the system, the head must be calculated. This must consider the following: - geodesic head: difference in level between the pumping station and the highest user - residual head: pressure demand from the most unfavourable user to serve - pressure drops: value in metres of pressure drops due to friction in the delivery pipes - inlet height: difference in level between the pump inlet and the surface of the water in the tank (positive or negative depending on the installation type) - inlet pressure drops: value in metres of pressure drops due to friction in the inlet piping and in any curves and valves. After analysing the above, the head required for the system is calculated. Now that the flow rate and head values are known, the most suitable pressure booster unit for the system can be chosen. The designer must decide whether to choose a pressure booster unit with two or three pumps, the third being a reserve pump satisfying demand during pump maintenance periods. INSTALLA ALLATION The GS series of pressure booster units must be installed in areas protected from frost and adequately ventilated in order to allow the motors to cool. The delivery and intake pipes should be connected using anti-vibration joints in order to limit vibrations and resonance in the system. 4

5 BOOSTER SETS GS SERIES INSTALLA ALLATION The GS series of pressure booster units are generally connected to pressurised tanks with a suitable capacity for the system. These tanks are normally expansion vessels for capacities up to L. Tanks with higher capacities can also be supplied if necessary. In these cases, they are air-cushion tanks and a compressor is required to maintain the pressure inside the tank. In both cases, the tanks must be connected on the pressure booster unit delivery line. The system, commonly known as an autoclave, provides the system with a reserve of pressurised water and prevents frequent pump start-ups. For these systems, sufficient space must always be allowed in the area where the pressure booster set is installed. Always check maximum pump pressure in order to choose the right tanks for the pressure in question. SUCTION CONDITIONS Installation of the pressure booster set must be assessed especially as regards intake conditions. Intake conditions can negatively or positively affect the performance of the pressure booster unit and consequently system performance. A positive suction head is ideal for a pressure booster unit as it keeps the pumps constantly primed and the positive difference in level adds pressure to the system. A negative suction head is different. In this case, the risks for the pumps are priming which is connected with the intake piping, the NPSH of the pump and the difference in level between the pump and the water in the tank. In this type of installation, after checking the intake capacity of the pump, the overall pressure drop in the intake line must be calculated as this will reduce pump performance and consequently that of the pressure booster unit. In order to select the right pressure booster unit, the performance levels of the pumps installed on them are indicated in this catalogue. To simplify the calculation of net pressure, pressure drop curves, both for the delivery and intake lines of the pumps have been included (see the relative chapter).

6 BOOSTER SETS GS SERIES CALCULATING NET PRESSURE SURE When selecting the GS series of pressure booster units, reference must be made to pump performance. Performance is calculated from the characteristic curves of the pumps and does not consider any pressure drops generated by pipes and valves as in the pressure booster units. To help choose the right pressure booster unit and calculate the correct pressure at the delivery manifold, the following example is shown: Given the duty point Q = 4 m 3 /h H = 1 mca and with two pumps working, the pump with the most suitable characteristic curve is chosen, that is, the one with a curve that guarantees the required flow and head values. SV1 8 [rpm] ISO Annex A Q [US gpm] From the example, we have chosen the SV1 series pump which guarantees system performance. The pump curve is slightly oversized, but this provides a safety margin to counter the pressure drops in the pressure booster unit pipes. To know the effective pressure at the delivery manifold outlet, the pressure drops in the suction and delivery lines of each pump are calculated To simplify calculations, the pressure drop curves for each pump, on page 98 of this catalogue, are used NPS Assuming a pressure booster unit with check valves on the suction line (curve B of Hc pressure drops) has been selected, one proceeds as follows: Q [m1 3 /h] Q [l/min] 7684_A_CH The Hc pressure drops on the pump suction line are to evaluated on the B curve. At a flow rate of 1 m 3 /h the value of Hc =,8 m. Similarly, the Hc pressure drops on the delivery line of the pump, as evaluated on the B curve, are analysed. At a flow rate of 1 m 3 /h, the value of Hc is,3 m. The total pressure drop on the delivery and suction lines is therefore,84 m. As regards the pressure drop in the suction and delivery manifolds, % with respect to the pressure drops in the pump suction and delivery can be considered. In this case, therefore, the value is,14 m. The total pressure drop is approximately: 3 m. Analysing the performance of the unit at a flow rate of 4 m 3 /h, the head H is 11 m. The net pressure at the delivery manifold is 11 3 = 11 m. Comparing this value with the rated value, 11 m > 1 m. The unit can therefore satisfy the demand of the system. 6

7 BOOSTER SETS GS SERIES SUCTION CONDITIONS The above example does not consider the suction conditions of the pressure booster unit which, similarly, affect final performance. It is therefore always best to check the suction line for leaks, especially as regards positive head installations. An example of positive head installation relative to the above case is shown below: In the positive head installation, the designer must calculate the minimum installation height Hg of the pump in safety conditions in order to avoid cavitation and, therefore, de-priming of the pump. The relationship that must be checked and which connects this measurement is the following: NPSH available NPSH requested where equality is the limit condition. NPSH available = Patm + Hg - pressure drops. Where: Patm is the atmospheric pressure, equal to 1,33 m Hg is the geodetic difference in level The pressure drops are connected with to the suction piping and relative valves (foot and cut-off valves) NPSH requested is a pump parameter taken from the performance curve of the pump which in our case, at a flow rate of 1 m 3 /h corresponds to, m. Before calculating the NPSH available, the suction pressure drops are calculated using the tables on pages in this catalogue, considering a material such as steel. The chosen diameter of the suction piping is DN8. 9 curve DN8 =,11 m Damper DN8 =,8 m Drain valve DN8 =,3 m (calculated from supplier data) Piping DN8 =,61 m (assuming a length of, m) Piping DN8, intake manifold =,4 m (length of manifold,61 m) Pressure drops on pump suction side (curve B) =,8 m pressure drops = 6,1 m Remembering that: NPSH available = 1,33 + Hg - 6,1 Replacing: 1,33 + Hg - 6,1, Hg =, + 6,1 1,33 = - 1,73 m representing the limit, for which reason: NPSH available = NPSH requested Generally speaking, therefore, in order to assure correct operating conditions as regards the risk of cavitation, the pump must be positioned above the level of the tank so that the suction height is lower than the limit value of 1,73 m. 7

8 SET IDENTIFICATION TION CODE GS D I 1 RA / 46SV3G11T + 3SV11F11T / DW / PA OPTIONS (ON DEMAND) Options Versions: _ = Standard version DW = Drinking water version A316 = Special version AISI 316 A34 = Special version AISI 34 Code of jockey pump (if present) Code of service pump _ = with check valve on delivery side RA = with check valve on intake side = service pumps 1 = service pumps + 1 jockey pump 3 = 3 service pumps _ = standard I = with self-test Electric starting of service pump D = direct, up to and including kw Y = star/delta SF = Softstarter Reference to series GS = command from a pressure sensor 3 Power supply of control panel 3 x 3V. For different voltage supply, see control panel section. 3A Booster set with electric pump certified 1A (Factory test reports issued by the end of assembly line; it includes QH curve). 3B Booster set with electric pump certified 1B (Test report issued by Audit Test Lab; it includes QH curve, efficiency and power). 6 Booster set with 6Hz supply voltage. BAP High pressure switch installed on the delivery manifold. C9 Delivery manifold at 9 with bend. The tanks can not be installed directly on the manifold. CM Suction or delivery manifold larger than standard size. CP Dry contact version: power line, Automatic/Manual mode, Run/Stop for each pump, thermal block. IP6 IP6 version control panel. KV Kit voltmeter. MA Pressure gauge installed on suction manifold. NL Dutch market version. PA Minimum pressure gauge installed on the suction manifold for dry-running protection. PP Pressure-switch control. PQ Booster set with higt suction pressure (pressure gauge/pressure switches/pressure transmitter increased of one range). RA Non return valves mounted on suction side (I.e GMDRA/SV ). RE Heaters inside the control panel, with thermostat. RV Electric panel with phase sequence, phase loss, over- and undervoltage and phase unbalance. SA No intake: no suction valves and suction manifold. SC Group with no control devices, such as pressure switches and transmitters; the pressure gauge is present. SCA No suction manifold (suction valves present). SCM Without delivery manifold (no pressure transmitters and pressure gauge, with delivery valves). SM Without delivery: without valves on delivery and without delivery manifold. TS Booster set with pumps equipped with special mechanical seals. UK UK market version. VA Electric control panel fitted with analogue voltmeter and ammeter. WM Wall-mounted electrical panel with fixing tabs. Cables L= m AVAILABLE AILABLE VERSIONS A34 B34 C34 A316 B316 C316 DW Main component in contact with liquid in stainless steel Aisi 34 or superior; gasket, sealing tape and thread sealing are suitable for drinking water. Bolts and screws galvanized. Flanges not in contact with the liquid in galvanized steel. Main component in contact with liquid in stainless steel Aisi 34 or superior; gasket, sealing tape and thread sealing are suitable for drinking water. Bolts and screws in Aisi 34 or superior. Flanges not in contact with the liquid in Aisi 34 or superior. Main component in contact with liquid in stainless steel Aisi 34 or superior; gasket, sealing tape and thread sealing are suitable for drinking water. Baseplate, frame, supports, bolts and screws in Aisi 34 or superior. Flanges not in contact with the liquid in Aisi 34 or superior. Valves and their components completely in Aisi 34 or superior (body, disc, plate). Main component in contact with liquid in stainless steel Aisi 316; gasket, sealing tape and thread sealing are suitable for drinking water. Pumps in Aisi 316 material. Bolts and screws galvanized. Flanges not in contact with the liquid in galvanized steel. Main component in contact with liquid in stainless steel Aisi 316; gasket, sealing tape and thread sealing are suitable for drinkingwater. Pumps in Aisi 316 material. Bolts and screws in Aisi 316. Flanges not in contact with the liquid in Aisi 316. Main component in contact with liquid in stainless steel Aisi 316; gasket, sealing tape and thread sealing are suitable for drinking water. Pumps in Aisi 316 material. Baseplate, frame, supports, bolts and screws in Aisi 316. Flanges not in contact with the liquid in Aisi 316. Valves and their components completely in Aisi 316 (body, disc, plate). Main component in contact with fluid suitable for drinking water or in stainless steel AISI 34 or superior quality. 8

9 CONTROL PANEL FOR GS, GS1, GS3 Electric panel for powering, controlling and protecting a maximum of three three-phase pumps, with sheet steel casing (fig. 1) and protected to IP. fig. 1 Main characteristics: - General doorlock switch, fuse holders and fuses, starting contactors and circuit breakers. - Standard input voltage: 3x4Vca +/-1%, /6Hz. Non-standard voltages available on request, 1x3Vac +/-1%, 3x3ca +/-1%, /6Hz. - Transformer for auxiliary low voltage circuit; auxiliary voltage 4Vac. - Lowara SM3 digital microprocessor-controlled control unit with LCD display and programming keyboard (see fig. ), featuring the following functions: Indicator lamps: power on (ref.1), general fault (ref.), no water alarm (ref.3), pump running (ref.4); Programming keyboard (ref.); Manual pump stop/start (one button for each pump) (ref.); Automatic cascade pump control with two electronic pressure transmitters. If a sensor develops a fault, the board automatically switches to the second sensor. Pressure switch control available on request. Jockey pump management. Cycle reversal function (can be disabled). Automatically switches pumps after every start/stop cycle. Automatic, manual or disabled mode switches for each pump (inside the board). Periodic system self-test with an electrovalve command which opens the hydraulic circuit, simulates a pressure drop and consequently activates the control devices (pressure switches and pressure transmitters). Pump diagnostics GS fig. No-water protection system alternatives: float, minimum pressure switch, external contact or electrode probes with sensitivity adjustment. Adjustable timer delaying tripping the no-water protection system. Adjustable timer delaying starting of each pump. Adjustable timer extending the operation of each pump. System pressure drop offset function, only available with pressure sensor. This function improves system stability. Adjustable analogue output, 4-mA or -1Vdc, for visualising the analogue input signal. Configurable relay with volt-free contact, delayed activation, signalling the following conditions: - Motor overload protection alarm. - No-water circuit alarm. - Pressure sensor fault. - Out-of-curve operation alarms (only if self-test is disabled). - Maximum intake pressure alarm. - Electrovalve opening permission for self-test circuit. Configurable digital inputs. - AUX1 input configuration, maximum pressure switch or external self-test. - AUX input configuration, permission from external device (NO) or external alarm (NC). - AUX3 input configuration, change set (NO) or pressure switch operating out-of-curve. 1Vdc output for powering the acoustic alarm. 9

10 CONTROL PANEL FOR GS, GS1, GS3 Alarms log and hour counters for each installed pump. Alarms visualised on display: - Maximum, minimum pressure; - Circuit breaker for each motor; - Pressure transmitter fault. - Out-of-curve operation; - No water; - Block for tripped external device (PTC, temperature probe, etc.) - Auto-test failed All the alarms light the Fault lamp (ref. fig.) The no-water alarm lights the Level alarm lamp (ref.3 fig.) Standard, RS48 serial communication, slave, and ModBus RTU protocol. The GSM/GPRS module can be connected to send pump alarms and/or operating states via sms or . Connection via RS48 serial connection. SIM card not included. A relay board (optional) can be connected to boost the following signals: pump running, aut-man mode for each pump, overload alarm, no-water alarm, maximum/minimum pressure alarm, power on, self-test failed. The optional signal booster board has six relays, each of which can be configured using the Lowara SM3 control unit. 1

11 GS.../SV Series GS.../SV Fixed-speed pressure booster sets Vertical Multistage electric pumps e-sv series equipped with high efficiency motors flow rate up to 48 m 3 /h Hz 11

12 GS.../SV SERIES HYDRAULIC PERFORMANCE RANGE AT Hz GS.../SV Q [US 4 gpm] GS.../SV GS.., GS..1 GS Q 1 [m 3 /h] Q [l/min] 7699_B_CH 1

13 RANGE The GS series of fixed-speed pressure boosters comprises models with or 3 electric service pumps and an optional jockey pump in order to satisfy the specific needs of every application. GS.../SV GS SETS Fixed-speed sets with two multistage vertical service pumps, SV series, with power ratings up to 37 kw. Head up to 16m. Flow rate up to 3 m 3 /h. GS1 SETS Fixed-speed sets with two service pumps and a jockey pump. Multistage vertical electric pumps, SV series, with power ratings up to 37 kw. Head up to 16m. Flow rate up to 3 m 3 /h. GS3 SETS Fixed-speed sets with three multistage vertical service pumps, SV series, with power ratings up to 37 kw. Head up to 16m. Flow rate up to 48 m 3 /h. REFERENCE STANDARDS The Lowara booster sets are CE-marked for conformity with the following directives: Machinery Directive: 6/4/EC. Low Voltage Directive 6/9/EC. Electromagnetic Compatibility Directive 4/18/EC Electric pump performance complies with the following standard: ISO 996-A Rotodynamic pumps hydraulic performance acceptance tests. 13

14 CHARACTERISTICS S OF THE ELECTRIC PUMPS GS.../SV The SV pump is a multistage vertical pump, not self-priming, combined with a normalised standard motor. The hydraulic part is kept in place between the upper cover and the pump body with tie-rods. The pump body is available in different configurations and connection typologies. Technical Information: Flow rates: up to 16 m 3 /h. Heads: up to 16 m. Temperature of pumped liquid: - from -3 C to +1 C for: 3,, 1, 1,, 33, 46, 66, 9, 1SV standard version. Tested to ISO 996 annex A. Clockwise direction of rotation looking at the pump from above (indicated with an arrow on the bracket and joint). Motor Short circuit squirrel cage motor, totally enclosed, fan-cooled. Standard supplied IE/IE3 motors are compliant with Regulation (EC) no. 64/9 and IEC IP protection. Class 1 (F) insulation. Performance levels according to EN Standard voltage: Single-phase version: -4 V, Hz. Three-phase version: -4/38-41 V, Hz for power up to 3 kw, 38-41/66-69 V, Hz for power above 3 kw. For electrical data of the motors used see Technical Appendix. Materials Suitable for pumping drinking water (WRAS certified). 14

15 CHARACTERISTICS S OF THE ELECTRIC PUMPS USED IN GS SERIES BOOSTER SETS CHARACTERISTICS S OF 3,, 1, 1, SV SERIES Vertical multistage centrifugal pump. All metal parts in contact with the pumped liquid are made of stainless steel. The following versions are available: - F: round flanges, in-line delivery and suction ports, AISI T: oval flanges, in-line delivery and suction ports, AISI R: round flanges, delivery port above the suction port, with four adjustable positions, AISI N: round flanges, in-line delivery and suction ports, AISI V, P: Victaulic couplings, in-line delivery and suction ports, AISI C: Clamp couplings (DIN 3676), in-line delivery and suction ports, AISI K: threaded couplings, (DIN 1181), in-line delivery and suction ports, AISI 316. Reduced axial thrusts enable the use of standard motors that are easily found in the market. Standard supplied IE/IE3 three-phase surface motors,7 kw are compliant with Regulation (EC) no. 64/9. Mechanical seal according to EN 176 (ex DIN 496) and ISO 369 for 1, 3, SV and 1, 1, SV ( of 4 kw) series. Balanced mechanical seal according to EN 176 (ex DIN 496) and ISO 369, which can be replaced without removing the motor from the pump for 1, 1 and SV ( of, kw) series. Seal housing chamber designed to prevent the accumulation of air in the critical area next to the mechanical seal. A second plug is available for 1, 1, SV series. Versions with round flanges that can be coupled to counter-flanges, according to EN 19. Threaded, oval counter-flanges made of stainless steel are standard supply for the T versions. Round counter-flanges made of stainless steel are available on request for the F, R and N versions. Easy maintenance. No special tools required for assembly or disassembly. The pumps for F,, T,, R,, N versions are certified for drinking water use (WRAS and ACS S certified). Standard version for temperatures ranging from -3 C to +1 C. GS.../SV CHARACTERISTICS S OF SV33, 46, 66, 9 SERIES The following versions are available: - G: vertical multistage centrifugal pump with impellers, diffusers and outer sleeve made entirely of stainless steel, and with pump casing and motor adaptor made of cast iron. - N, P: version made entirely of AISI 316 stainless steel. Innovative axial load compensation system on pumps with higher head. This ensures reduced axial thrusts and enables the use of standard motors that are easily found in the market. Standard supplied IE/IE3 three-phase surface motors are compliant with Regulation (EC) no. 64/ 9. Balanced mechanical seal according to EN 176 (ex DIN 496) and ISO 369, which can be replaced without removing the motor from the pump. Seal housing chamber designed to prevent the accumulation of air in the critical area next to the mechanical seal. The pumps for G, N versions are certified for drinking water use (WRAS and ACS certified). Standard version for temperatures ranging from -3 C to +1 C. Pump body fitted with couplings for installing pressure gauges on both suction and delivery flanges. In-line ports with round flanges that can be coupled to counter-flanges, in compliance with EN 19. Mechanical sturdiness and easy maintenance. No special tools required for assembly or disassembly. 1

16 GS.../SV OPERATING CHARACTERISTICS S AND LIMITS Liquids handled Water containing no gas or corrosive and/or aggressive substances. Fluid temperature Above -1 C a + 8 C Ambient temperature Above C a + 4 C Maximum operating pressure Max 8 bar, 1 bar, 16 bar in function of pump type Minimum inlet pressure According to NPSH curve and losses, with a minimum margin of. m Maximum inlet pressure The inlet pressure added to the pressure of the pump at zero flow must be lower than the maximum operating pressure of the set. Installation Indoors, protected from the weather. Away from heat sources. Max elevation 1 m ASL. Max humidity % without condensation.,37 kw Pn 3 kw max 6 starts per hour. Direct motor start; 4 kw Pn kw max 4 starts per hour. Direct motor start; Hourly starts (single pump) 11 kw Pn kw max 3 starts per hour. Direct motor start; 18, kw Pn kw max 4 starts per hour.direct motor start; 3 kw Pn 37 kw max 16 starts per hour. Start/delta start; Pn = 4 kw max 8 starts per hour. Start/delta start; Sound emission See table * On request, PN above in function of the pump gfix_p-en_c_ti SOUND EMISSION SION LEVELS Hz 9 rpm LpA (db ±)** P (kw) IEC* G.. G..3,37 71R - -, ,7 8R - - 1,1 8 <7 <7 1, 9R <7 <7, 9 < 7 < 7 3 1R < 7 < R < 7 < 7, 13R < 7 < 7 7, R , R * R=Reduced motor casing size with respect to shaft extension and related flange. gsfix_p-en_c_tr ** Noise value of the electric motor only. 16

17 MAIN COMPONENTS Main On-off valves on suction and discharge side of each pump, ball type with threaded coupling up to " size included. Butterfly type for installation between the flanges are used for larger diameters. Check valve on discharge side of each pump, spring-loaded type, with threaded coupling up to 1 1/ size, as well as the double-swing type to fit between the flanges. For applications with air-cushion surge tanks, they are mounted on the suction side and the set is equipped with a connector for G 1/" threaded flexible air feeder pipe (GS..RA series). Suction manifold made of galvanized or AISI 34 stainless steel depending on the version, with threaded or flanged ends depending on the type of pump (see drawings). Threaded coupling for water charging. Delivery manifold made of galvanized or AISI 34 stainless steel depending on the version, with threaded or flanged ends depending on the type of pump (see drawings). Fitted with two R1" threaded couplings with caps to allow connection diaphragm pressure vessels. Pressure gauge and control transmitters located on the delivery side of the unit. Various couplings in nickel-plated brass, galvanised steel or stainless steel depending on the version. Mounting base, for pumpset and panel mounting brackets: - in painted steel for sets with electric pumps series SV; Electric control panel, IP protection class. STANDARD VERSIONS AVAILABLE AILABLE See table of materials. STANDARD VERSION For or general applications Sets with 1SV pumps: Nickel-plated brass valves, brass non-return valves. Sets with 1-SV pumps: Nickel-plated brass valves, non-return valves with stainless steel flaps. Sets with SV pumps: Valves with polyamide butterfly, non-return valves with stainless steel flaps. DW VERSION (GS../DW) For drinking water applications. The main components in contact with the liquid are certified suitable for drinking water or are made of AISI 34 or higher grade of stainless steel. Sets with 1SV pumps: Nickel-plated brass valves, brass non-return valves. Sets with 1-SV pumps: Nickel-plated brass valves, non-return valves with stainless steel flaps. Sets with SV pumps: Valves with epoxy butterfly, non-return valves with stainless steel flaps. AISI34 Version (GS../A34), AISI 316 (GS../A316) For special applications Manifolds, valves, non-return valves and main components with parts directly in contact with the pumped liquid are made of AISI 34 or AISI 316 stainless steel. Accessories available on request: Devices against dry running in one of the following versions: - float switch, for positive suction head; - probe electrodes kit, for positive suction head; - minimum pressure switch, for positive suction head. Surge tank in the following versions: - Air-cushion surge tank with compressor and accessories for surge tank and compressor. - Diaphragm vessel as an alternative to the air-cushion tank. Kit featuring diaphragm expansion vessel with ball valve (one for each pump), in the following versions, depending on the maximum head of the pumps: - 4-litre 8 bar cylinder water vessel kit - 4-litre 1 bar cylinder water vessel kit - 4-litre 16 bar cylinder water vessel kit - -litre bar cylinder water vessel kit Alarm kit; Air feeder for RA version; Air compressor for RA version. SPECIAL VERSIONS AVAILABLE AILABLE ON REQUEST (Contact the Sales and technical Assistance Service) Units with non-standard input voltages, such as three-phase 3x3V, 3x44V. Units with single-phase input voltages 1x3V. Jockey pump other than the standard ones illustrated in the catalogue. Support base in AISI 34, AISI 316 stainless steel. Units with stainless steel expansion vessels. Units with special valves. Units with 4 electric pumps (GS31...GS4...). Units with electric pumps (GS41... GS...). GS.../SV 17

18 GS.../SV TABLE OF MATERIALS FOR SETS WITH 3--1SV PUMPS UP TO 4kW NAME MATERIAL (STANDARD) DW A34 A316 Manifolds AISI 34 AISI 34 AISI 34 AISI 316 On-off valves Nickel-plated brass Nickel-plated brass AISI 316 AISI 316 Non-return valves Brass Brass AISI 34 AISI 316 Pressure switches Chrome plated zinc alloy AISI 34 AISI 34 AISI 34 Pressure transmitters AISI 316 AISI 316 AISI 316 AISI 316 Caps/plugs/flanges Galvanized steel AISI 34 AISI 34 AISI 316 Bracket Galvanized steel Galvanized steel Galvanized steel Galvanized steel Base Galvanized steel Galvanized steel Galvanized steel Galvanized steel Pump body AISI 34 AISI 34 AISI 34 AISI 316 Outer sleeve AISI 34 AISI 34 AISI 34 AISI 316 TABLE OF MATERIALS FOR SETS WITH 1SV PUMPS ABOVE 4kW NAME MATERIAL (STANDARD) DW A34 A316 Manifolds AISI 34 AISI 34 AISI 34 AISI 316 On-off valves Nickel-plated brass Nickel-plated brass AISI 316 AISI 316 Non-return valves Brass Brass AISI 34 AISI 316 Pressure switches Chrome plated zinc alloy AISI 34 AISI 34 AISI 34 Pressure transmitters AISI 316 AISI 316 AISI 316 AISI 316 Caps/plugs/flanges Galvanized steel AISI 34 AISI 34 AISI 316 Bracket Painted steel Painted steel Painted steel Painted steel Base Painted steel Painted steel Painted steel Painted steel Pump body AISI 34 AISI 34 AISI 34 AISI 316 Outer sleeve AISI 34 AISI 34 AISI 34 AISI 316 TABLE OF MATERIALS FOR SETS 1-SV PUMPS DENOMINATION MATERIAL (STANDARD) DW A34 A316 Manifolds AISI34 AISI 34 AISI 34 AISI 316 On-off valves Nickel-plated brass Nickel-plated brass AISI 316 AISI 316 Non-return valves TABLE OF MATERIALS FOR SETS SV PUMPS DENOMINATION MATERIAL (STANDARD) DW A34 A316 Manifolds AISI 34 AISI 34 AISI 34 AISI 316 On-off valves Poliamide Epoxy AISI 316 AISI 316 Non-return valves Painted cast iron with stainless steel flaps Painted cast iron with stainless steel flaps Painted cast iron with stainless steel flaps Painted cast iron with stainless steel flaps AISI 34 AISI 316 AISI 34 AISI 316 Pressure switches Chrome plated zinc alloy AISI 34 AISI 34 AISI 34 Pressure transmitters AISI 316 AISI 316 AISI 316 AISI 316 Caps/plugs/flanges Galvanized steel AISI 316 AISI 316 AISI 316 Bracket Painted steel Painted steel Painted steel Painted steel Base Painted steel Painted steel Painted steel Painted steel Pump body Cast iron Cast iron Cast iron AISI 316 Outer sleeve AISI 34 AISI 34 AISI 34 AISI 316 gfixvsv_p-en_d_tm gfixvsv8_p-en_c_tm Pressure switches Chrome plated zinc alloy AISI 34 AISI 34 AISI 34 Pressure transmitters AISI 316 AISI 316 AISI 316 AISI 316 Caps/plugs/flanges Galvanized steel AISI 34 AISI 34 AISI 316 Bracket Painted steel (*) Painted steel (*) Painted steel (*) Painted steel (*) Base Painted steel Painted steel Painted steel Painted steel Pump body AISI 34 AISI 34 AISI 34 AISI 316 Outer sleeve AISI 34 AISI 34 AISI 34 AISI 316 (*) of galvanized steel for two-pump sets up to 4kW gfixvsv16_p-en_b_tm gfixvsv33_p-en_b_tm 18

19 GS.../SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (JOCKEY PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m 3 /h,7 1, 1, 1,8,1,4,7 3, 3,6 4,4 kw HP H = TOTAL HEAD METRES COLUMN OF WATER 3SV,37, 1 14, 14,3 14, 13, 13, 1,4 11,7 9,8 6, 3SV3,37, 1,,8,3 19,6 18,7 17,7 16,6 13,7 8,6 3SV4,37, 9 7,7 7,1 6,, 3,9,,8 16,8 1,1 3SV,, ,4 3,8 3, 33,9 3,6 31,1 9, 4, 16, 3SV6,, ,4 4,6 41,6 4, 38,6 36,6 34,3 8, 18, 3SV7, ,8 1,, 48,7 47, 4, 4, 36,1 4,6 3SV8, ,1 8, 7,,4 3,4 1, 48,1 4,7 7, 3SV9 1,1 1, 68 66,8 6,8 64, 6,8 6,6 7,9 4,6 46,4 31,6 3SV1 1,1 1, 7 73,8 7,7 71,3 69,3 66,9 63,8 6, 1, 34, 3SV11 1,1 1, 8 81, 79,7 78, 7,8 73,1 69,7 6,7, 37,4 3SV1 1,1 1, 9 87,8 86,4 84, 8,1 79,1 7, 71,1 9,9 4,1 3SV13 1, 98 96,7 9,4 93, 91, 87,8 83,9 79, 67, 4,6 3SV14 1, 16 14,1 1, 1,4 97,7 94, 89,9 84,8 71,8 48, 3SV16 1, 1 117,8 116,1 113,6 11, 16, 11,6 9,8 8,9 4, 3SV19, ,3 14,3 137, 133,9 19, 13, 116,7 99,1 67,6 3SV1, GS.../SV gfix_fhe_pp_3sv-p-en_b_th GS/1-1SV,, GS1/1-1SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min kw m3/h , , H = TOTAL HEAD METRES COLUMN OF WATER 1SV1F7T x,7 1 11, 1,9 9,9 8,3 7,6 4,3 1SVF7T x,7 4 1,9 1,3 19,6 17, 1,8 1, 1SV3F11T x 1, , 3,1 9,6,8 4,1 16, 1SV4F1T x 1, 48 44, 43, 39,9 34,8 3,6 1,7 1SVFT x, 6 6,1 4,7,9 44,9 4, 9, 1SV6FT x, 7 66,8 6, 6,4 3,1 49,8 33,9 1SV7F3T x ,3 76, 7,8 6,1 8,3 39,8 1SV8F3T x ,9 86, 8,1 7, 6,7 44, 1SV9F4T x ,1 97, 9,8 8, 7,1,1 1SV1F4T x ,8 17,9 1,3 88, 8,8 7, 1SV11F4T x ,3 118,1 19,6 96,3 9,3 6,1 1SV13FT x, , 14,7 13,6 116,4 19, 74,3 1SV1F11T x 1,1 14 1,9 1,4 1, 11,3 1,4 8,4 7,6,1 1SVFT x, 9 6,7,9, 3,9,4 18,9 17,4 13,1 1SV3F3T x ,4 39,1 38,6 36, 33,8 8,7 6,,1 1SV4F4T x 4 8 4,7 3,1, 49,4 46,3 39,7 36,9 8,7 1SVF4T x ,8 6,8 6, 61, 7,1 48,7 4, 34,9 1SV6FT x, 88 81, 79,4 78,4 74,1 69,9 6,3 6,3 44, 1SV7FT x, 1 94, 91,9 9,8 8,7 8,6 69,4 64,7, 1SV8F7T x 7, ,9 18, 16,8 1,8 94,9 8, 76,7 6,6 1SV9F7T x 7, 13 14,4 11, 119,6 11,8 16,1 91, 8, 67,4 1SV1F11T x ,8 13,3 133,8 16,7 119,6 13,9 97,4 77, The tabel referers to performance with pumps running gms_p1-1sv_p-en_b_th 19

20 GS.../SV GS/SV,, GS1/SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m3/h , , kw H = TOTAL HEAD METRES COLUMN OF WATER SV1F11T x 1,1 1 13, 1,7 1, 1,4 9,7 7,7 6,3 4,7 3,4 SVFT x, 3 8,4 7, 6, 3,3, 18,9 16,6 13,8 11, SV3F3T x 3 4 4, 4,4 38, 34, 3,8 7,8 4,, 16,6 SV4F4T x ,8 4,4 1,9 46,6 44,4 37,9 33,1 7,7 3, SVFT x, 76 7,9 67,9 64,9 8,3,6 47,4 41,4 34,7 8,8 SV6F7T x 7, 93 88,8 8,7 8, 7,4 7,4 63,3 6,7 49,1 4,6 SV7F7T x 7, 19 13,1 99,4 9,7 87, 83,7 73,1 6,3 6, 48,8 SV8F11T x , 11, 111, 11,6 97,7 8,7 77, 66,9 8, SV9F11T x ,7 19, 14,4 113,8 19,3 9,8 86, 74,6 64,8 SV1F11T x , 143,1 137,8 1,9 1,9 1,8 94,8 8,3 71,3 The table referers to performance with pumps running gms_psv_p-en_b_th GS/33-46SV,, GS1/33-46SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min kw m 3 /h SV1/1AGT x, 17,4 16, 1,7 1, 14, 1, 9,8 6,7 33SV1G3T x 3 3,8 1,7 1,,3, 17,8 1, 1,7 33SV/AG4T x 4 3,1 34,1 33,3 3, 3, 7,,4 16,6 33SV/1AG4T x 4 4,8 38,8 37,9 36, 3, 3, 7,,3 33SVGT x, 47,8 4, 44,1 43, 41, 39, 3, 9,9 33SV3/AGT x, 7,7, 3,8 1, 49, 44, 38, 9,6 33SV3/1AG7T x 7, 64, 61,3 6, 8, 6, 1, 4, 37, 33SV3G7T x 7, 71, 67,4 66, 64, 6, 8,, 44,6 33SV4/AG7T x 7, 8, 78,8 77, 74, 7, 66, 8, 47, 33SV4/1AG11T x 11 88,9 8, 83, 81, 78, 73, 6,,1 33SV4G11T x 11 9,9 91,1 9, 87, 8, 8, 73, 63,1 33SV/AG11T x 11 16, 11,6 1, 96, 93, 8, 76, 63, 33SV/1AG11T x 11 11,7 17, 1, 1, 99, 9, 8, 7, 33SVG1T x 1 1,4 114,9 113, 11, 17, 11, 9, 8, 33SV6/AG1T x 1 131, 16,9 1, 1, 116, 18, 96, 81, 33SV6/1AG1T x 1 139,1 133, 131, 18, 14, 116, 1, 9,4 33SV6G1T x 1 14,6 139, 137, 133, 19, 11, 11, 96,1 33SV7/AG1T x 1 16, 149,9 147, 143, 138, 18, 11, 98, 46SV1/1AG3T x 3 19, 19, 18,8 17,9 16,7 1,1 13,1 8, 4,6 46SV1G4T x 4 7, 4, 3,, 1,4 19,9 18, 14,3 1,8 46SV/AGT x, 38,8 39,8 39, 37,8 3,7 3,9 9,4 1,1 13,9 46SVG7T x 7,,6 48, 47,7 46,1 44, 41,7 38,7 31,4,1 46SV3/AG11T x 11 64,7 6,1 64, 6, 6, 6,, 4,4 3,8 46SV3G11T x 11 8,8 74,3 73, 71, 68, 6, 6,, 4,7 46SV4/AG1T x 1 9,4 9,7 9, 87, 83, 79, 73, 8, 4,6 46SV4G1T x 1 17,3 99,8 98, 96, 9, 87, 8, 68,,9 46SV/AG18T x 18, 117, 114,8 113, 11, 16, 1, 93, 7, 6, 46SVG18T x 18, 134, 1,1 13, 1, 116, 11, 13, 86, 71, 46SV6/AGT x 143,7 139,3 138, 134, 19, 1, 113, 9, 73,4 46SV6GT x 161, 149,9 148, 144, 139, 13, 14, 14, 86, The table refers to performance with pumps running. H = TOTAL HEAD METRES COLUMN OF WATER gms_psv33-46_p-en_b_th

21 GS/SV66-9, GS1/SV66-9 SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min , m 3 /h kw H = TOTAL HEAD METRES COLUMN OF WATER 66SV1/1AG4T x 4 3,8 1,4,7 19,9 19,4 17,8 16,6 13,3 11, 8,3 66SV1GT x, 9,,8 4,8 3,8 3,3 1,8,7 17,9 16,1 13, 66SV/AG7T x 7, 47, 4,6 41, 39, 38,6 3, 3,9 6,4, 16,4 66SV/1AG11T x 11 4, 49,6 48, 46,7 4,8 4,9 4,6 34,8 31, 6, 66SVG11T x 11 6,4,7 4,4,8, 49,3 47,1 4, 38,9 34,7 66SV3/AG1T x 1 78,4 71,6 69,6 67, 6,9 61, 7,9 49, 43,3 3,3 66SV3/1AG1T x 1 84,7 77,8 7,8 73, 7, 68, 64,6 6,3 1,1 44, 66SV3G18T x 18, 91,4 84,7 8,7 8, 79,3 7, 7, 64,4 9,8 3, 66SV4/AG18T x 18, 18,9 99,6 96,9 93,8 9,1 86,3 81,6 7,1 6,8,8 66SV4/1AGT x 11, 1,9 13,1 1,1 98, 9,9 88,6 77,8 71,1 61,8 66SV4GT x 11,6 11, 19,8 16,9 1,3 99,8 9,7 8, 79, 7,8 66SV/AG3T x 3 139,1 17, 14,1 1, 118, 111,1 1, 91, 8,7 7,4 66SV/1AG3T x 3 14,6 134, 13, 16,8 14,7 117,8 11,4 99, 9,9 79, 66SVG3T x 3 1, 14,4 137, 133,3 131,3 14,6 119,4 16,8 99,1 88, 9SV1/1AGT x, 4,, 1,,9 19,4 18, 17,3 1, 11,8 7,9 9SV1G7T x 7, 33, 8,7 7, 6, 4,3 3,3,, 17,6 14,3 9SV/AG11T x 11 49,4 4,1 43,7 4, 39,6 37,9 3, 3,9 4,6 16,8 9SVG1T x 1 67,8 8,,3 3,4 49, 47,6 4, 41,4 36,3 9,6 9SV3/AG18T x 18, 8,4 74,4 71,6 69,6 64,8 6,1 8,6, 43,6 3,9 9SV3GT x 1, 88, 84, 81, 7, 7,6 69, 63,4,9 46,3 9SV4/AG3T x 3 11,7 14, 99,9 97, 9,4 86,8 8,1 73,8 6,8 49, 9SV4G3T x 3 133,1 117, 111,7 18, 1,6 96,8 9,3 84,6 74,8 6, 9SV/AG37T x , 133, 17,8 14, 11,6 111, 1, 94,9 81,4 64,6 GS.../SV The table refers to performance with pumps running. gms_psv66-9_p-en_b_th GS/1SV,, GS1/1SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m3/h kw H = TOTAL HEAD METRES COLUMN OF WATER 1SV1G7T x 7, 7,6,8 19,8 18,6 16,8 1,3 14,4 1,9 11,3 6, 1SVG1T x 1 3,8 44,4 4, 4,4 37,1 34,4 3,9 3,4 7,7 19,6 1SV3GT x 8,7 66, 63,8 6,6,7 1,6 49,4 4,7 41, 9,4 1SV4G3T x 3 17,6 88,7 8, 8,7 74, 68,8 6,8 6,9,4 39, 1SVG37T x , 11,9 16,3 1,9 9,8 86, 8,3 76,1 69, 49, The table refers to performance with pumps running. gv_p1sv_p-en_b_th 1

22 GS.../SV GS3/1-1SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m3/h , , kw H = TOTAL HEAD METRES COLUMN OF WATER 1SV1F7T 3 x,7 1 11, 1,9 9,9 8,3 7,6 4,3 1SVF7T 3 x,7 4 1,9 1,3 19,6 17, 1,8 1, 1SV3F11T 3 x 1, , 3,1 9,6,8 4,1 16, 1SV4F1T 3 x 1, 48 44, 43, 39,9 34,8 3,6 1,7 1SVFT 3 x, 6 6,1 4,7,9 44,9 4, 9, 1SV6FT 3 x, 7 66,8 6, 6,4 3,1 49,8 33,9 1SV7F3T 3 x ,3 76, 7,8 6,1 8,3 39,8 1SV8F3T 3 x ,9 86, 8,1 7, 6,7 44, 1SV9F4T 3 x ,1 97, 9,8 8, 7,1,1 1SV1F4T 3 x ,8 17,9 1,3 88, 8,8 7, 1SV11F4T 3 x ,3 118,1 19,6 96,3 9,3 6,1 1SV13FT 3 x, , 14,7 13,6 116,4 19, 74,3 1SV1F11T 3 x 1,1 14 1,9 1,4 1, 11,3 1,4 8,4 7,6,1 1SVFT 3 x, 9 6,7,9, 3,9,4 18,9 17,4 13,1 1SV3F3T 3 x ,4 39,1 38,6 36, 33,8 8,7 6,,1 1SV4F4T 3 x 4 8 4,7 3,1, 49,4 46,3 39,7 36,9 8,7 1SVF4T 3 x ,8 6,8 6, 61, 7,1 48,7 4, 34,9 1SV6FT 3 x, 88 81, 79,4 78,4 74,1 69,9 6,3 6,3 44, 1SV7FT 3 x, 1 94, 91,9 9,8 8,7 8,6 69,4 64,7, 1SV8F7T 3 x 7, ,9 18, 16,8 1,8 94,9 8, 76,7 6,6 1SV9F7T 3 x 7, 13 14,4 11, 119,6 11,8 16,1 91, 8, 67,4 1SV1F11T 3 x ,8 13,3 133,8 16,7 119,6 13,9 97,4 77, The table refers t operformance with 3 pumps running. gms_3p1-1sv_p-en_b_th GS3/SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m3/h , , kw H = TOTAL HEAD METRES COLUMN OF WATER SV1F11T 3 x 1,1 1 13, 1,7 1, 1,4 9,7 7,7 6,3 4,7 3,4 SVFT 3 x, 3 8,4 7, 6, 3,3, 18,9 16,6 13,8 11, SV3F3T 3 x 3 4 4, 4,4 38, 34, 3,8 7,8 4,, 16,6 SV4F4T 3 x ,8 4,4 1,9 46,6 44,4 37,9 33,1 7,7 3, SVFT 3 x, 76 7,9 67,9 64,9 8,3,6 47,4 41,4 34,7 8,8 SV6F7T 3 x 7, 93 88,8 8,7 8, 7,4 7,4 63,3 6,7 49,1 4,6 SV7F7T 3 x 7, 19 13,1 99,4 9,7 87, 83,7 73,1 6,3 6, 48,8 SV8F11T 3 x , 11, 111, 11,6 97,7 8,7 77, 66,9 8, SV9F11T 3 x ,7 19, 14,4 113,8 19,3 9,8 86, 74,6 64,8 SV1F11T 3 x , 143,1 137,8 1,9 1,9 1,8 94,8 8,3 71,3 The tabel referers to performance with 3 pumps running gms_3psv_p-en_b_th

23 GS3/33-46SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m 3 /h kw H = TOTAL HEAD METRES COLUMN OF WATER 33SV1/1AGT 3 x, 17,4 16, 1, , 9,8 6,7 33SV1G3T 3 x 3 3,8 1,7 1, 17,8 1, 1,7 33SV/AG4T 3 x 4 3,1 34,1 33, ,4 16,6 33SV/1AG4T 3 x 4 4,8 38,8 37, ,,3 33SVGT 3 x, 47,8 4 44, ,9 33SV3/AGT 3 x, 7,7, 3, ,6 33SV3/1AG7T 3 x 7, 64, 61, SV3G7T 3 x 7, 71, 67,4 66, , 44,6 33SV4/AG7T 3 x 7, 8 78, , 33SV4/1AG11T 3 x 11 88, ,1 33SV4G11T 3 x 11 9,9 91, ,1 33SV/AG11T 3 x , SV/1AG11T 3 x 11 11,7 17, SVG1T 3 x 1 1,4 114, , 33SV6/AG1T 3 x 1 131, 16, , 33SV6/1AG1T 3 x 1 139,1 133, ,4 33SV6G1T 3 x 1 14, ,1 33SV7/AG1T 3 x , , 46SV1/1AG3T 3 x 3 19, 19, 18,8 17,9 16,7 1,1 13,1 8, 4,6 46SV1G4T 3 x 4 7, 4 3,, 1,4 19,9 18, 14,3 1,8 46SV/AGT 3 x, 38,8 39,8 39, 37,8 3,7 3,9 9,4 1,1 13,9 46SVG7T 3 x 7,,6 48, 47,7 46,1 44, 41,7 38,7 31,4,1 46SV3/AG11T 3 x 11 64,7 6, ,4 3,8 46SV3G11T 3 x 11 8,8 74, ,7 46SV4/AG1T 3 x 1 9,4 9, ,6 46SV4G1T 3 x 1 17,3 99, ,9 46SV/AG18T 3 x 18, 117, 114, , 46SVG18T 3 x 18, 134, 1, , 46SV6/AGT 3 x 143,7 139, ,4 46SV6GT 3 x , The table refers to performance with 3 pumps running. gms_3psv33-46_p-en_b_th GS.../SV 3

24 GS.../SV GS3/66-9SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m 3 /h kw H = TOTAL HEAD METRES COLUMN OF WATER 66SV1/1AG4T 3 x 4 3,8 1,4,7 19,9 19,4 17,8 16,6 13,3 11, 8,3 66SV1GT 3 x, 9,,8 4,8 3,8 3,3 1,8,7 17,9 16,1 13, 66SV/AG7T 3 x 7, 47, 4,6 41, 39, 38,6 36 3,9 6,4, 16,4 66SV/1AG11T 3 x 11 4, 49,6 48, 46,7 4,8 4,9 4,6 34,8 31, 6, 66SVG11T 3 x 11 6,4,7 4,4,8 49,3 47,1 4 38,9 34,7 66SV3/AG1T 3 x1 78,4 71, ,3 3,3 66SV3/1AG1T 3 x 1 84,7 77, , 66SV3G18T 3 x 18, 91,4 84, , 66SV4/AG18T 3 x 18, 18,9 99, ,8 66SV4/1AGT 3 x 11, 1, ,8 66SV4GT 3 x 11,6 11, ,8 66SV/AG3T 3 x 3 139,1 17, ,4 66SV/1AG3T 3 x 3 14, , 66SVG3T 3 x , , 9SV1/1AGT 3 x, 4,, 1,,9 19,4 18, 17,3 1 11,8 7,9 9SV1G7T 3 x 7, 33, 8,7 7, 6, 4,3 3,3,, 17,6 14,3 9SV/AG11T 3 x 11 49,4 4,1 43,7 4, 39,6 37,9 3, 3,9 4,6 16,8 9SVG1T 3 x 1 67,8 8, 3 49, 47,6 4, 41,4 36,3 9,6 9SV3/AG18T 3 x 18, 8,4 74, ,6 3,9 9SV3GT 3 x 1, 88, ,3 9SV4/AG3T 3 x 3 11, SV4G3T 3 x 3 133, , 9SV/AG37T 3 x , ,6 The table refers to performance with 3 pumps running. gms_3psv66-9_p-en_b_th GS3/1SV SERIES BOOSTER SETS HYDRAULIC PERFORMANCE TABLE AT HZ (SERVICE PUMP) PUMP NOMINAL Q = DELIVERY TYPE POWER l/min m3/h kw H = TOTAL HEAD METRES COLUMN OF WATER 1SV1G7T 3 x 7, 7,6,8 19,8 18,6 16,8 1,3 14,4 1,9 11,3 6, 1SVG1T 3 x 1 3,8 44,4 4, 4,4 37,1 34,4 3,9 3,4 7,7 19,6 1SV3GT 3 x 8,7 66, 63,8 6,6,7 1,6 49,4 4,7 41, 9,4 1SV4G3T 3 x 3 17,6 88,7 8, 8,7 74, 68,8 6,8 6,9,4 39, 1SVG37T 3 x , 11,9 16,3 1,9 9,8 86, 8,3 76,1 69, 49, The table refers to performance with 3 pumps running. gv_3p1sv_p-en_b_th 4

25 GS, GS1, GS3/1SV-33SV SERIES BOOSTER SETS ELECTRICAL DATA A TABLE AT Hz SERVICE JOCKEY CURRENT PUMP PUMP ABSORBED BY SET 3 X 4 V 3 X 4 V 3 X 4V TYPE Pn In TYPE Pn In GS GS1 GS3 kw A kw A A A A 1SV1,7 1,7 3SV,37 1,3-4,8,1 1SV,7 1,7 3SV4,37 1,3-4,8,1 1SV3 1,1,39 3SV, 1,48-6,3 7, 1SV4 1, 3,17 3SV7,7 1,7-8, 9, 1SV, 4,64 3SV9 1,1,39-11,7 13,9 1SV6, 4,64 3SV1 1,1,39-11,7 13,9 1SV7 3 6,14 3SV1 1,1,39-14,7 18,4 1SV8 3 6,14 3SV13 1, 3,17-1, 18,4 1SV9 4 7,63 3SV14 1, 3,17 1,3 18,4,9 1SV1 4 7,63 3SV19, 4,64 1,3 19,9,9 1SV11 4 7,63 3SV19, 4,64 1,3 19,9,9 1SV13, 1,4 3SV1, 4,64,8,4 31, 1SV1 1,1,39 3SV3,37 1,3 4,8 6,1 7, 1SV, 4,64 3SV, 1,48 9,3 1,8 13,9 1SV3 3 6,14 3SV6, 1,48 1,3 13,8 18,4 1SV4 4 7,63 3SV8,7 1,7 1,3 17,,9 1SV 4 7,63 3SV1 1,1,39 1,3 17,7,9 1SV6, 1,4 3SV1 1,1,39,8 3, 31, 1SV7, 1,4 3SV13 1, 3,17,8 4, 31, 1SV8 7, 14, 3SV16 1, 3,17 8, 31, 4, 1SV9 7, 14, 3SV19, 4,64 8, 3,6 4, 1SV1 11,3 3SV1, 4,64 4,6 4, 6,9 SV1 1,1,39 3SV3,37 1,3 4,8 6,1 7, SV, 4,64 3SV, 1,48 9,3 1,8 13,9 SV3 3 6,14 3SV7,7 1,7 1,3 14, 18,4 SV4 4 7,63 3SV9 1,1,39 1,3 17,7,9 SV, 1,4 3SV11 1,1,39,8 3, 31, SV6 7, 14, 3SV13 1, 3,17 8, 31, 4, SV7 7, 14, 3SV14 1, 3,17 8, 31, 4, SV8 11,3 3SV19, 4,64 4,6 4, 6,9 SV9 11,3 3SV19, 4,64 4,6 4, 6,9 SV1 11,3 3SV1, 4,64 4,6 4, 6,9 33SV1/1A, 4,64 3SV3,37 1,3 9,3 1,6 13,9 33SV1 3 6,14 3SV4,37 1,3 1,3 13,6 18,4 33SV/A 4 7,63 3SV, 1,48 1,3 16,7,9 33SV/1A 4 7,63 3SV6, 1,48 1,3 16,7,9 33SV, 1,4 3SV7,7 1,7,8, 31, 33SV3/A, 1,4 3SV8,7 1,7,8, 31, 33SV3/1A 7, 14, 3SV9 1,1,39 8, 3,4 4, 33SV3 7, 14, 3SV1 1,1,39 8, 3,4 4, 33SV4/A 7, 14, 3SV11 1,1,39 8, 3,4 4, 33SV4/1A 11,3 3SV1 1,1,39 4,6 43, 6,9 33SV4 11,3 3SV13 1, 3,17 4,6 43,8 6,9 33SV/A 11,3 3SV14 1, 3,17 4,6 43,8 6,9 33SV/1A 11,3 3SV16 1, 3,17 4,6 43,8 6,9 33SV 1 6, 3SV19, 4,64, 6,6 78, 33SV6/A 1 6, 3SV19, 4,64, 6,6 78, 33SV6/1A 1 6, 3SV19, 4,64, 6,6 78, 33SV6 1 6, 3SV1, 4,64, 6,6 78, 33SV7/A 1 6, 3SV1, 4,64, 6,6 78, The current shown is the nominal current of the set. gms_1-33sv_p-en_d_te GS.../SV

26 GS.../SV GS, GS1, GS3/46-1SV SERIES BOOSTER SETS ELECTRICAL DATA A TABLE AT Hz SERVICE JOCKEY CURRENT PUMP PUMP ABSORBED BY SET 3 X 4 V 3 X 4 V 3 X 4V TYPE Pn In TYPE Pn In GS GS1 GS3 kw A kw A A A A 46SV1/1A 3 6,14 3SV3,37 1,3 1,3 13,6 18,4 46SV1 4 7,63 3SV4,37 1,3 1,3 16,6,9 46SV/A, 1,4 3SV6, 1,48,8,3 31, 46SVG 7, 14, 3SV8,7 1,7 8, 9,7 4, 46SV3/A 11,3 3SV9 1,1,39 4,6 43, 6,9 46SV3 11,3 3SV11 1,1,39 4,6 43, 6,9 46SV4/A 1 6, 3SV13 1, 3,17,, 78, 46SV4 1 6, 3SV14 1, 3,17,, 78, 46SV/A 18, 33, 3SV16 1, 3,17 66,4 69,6 99,6 46SV 18, 33, 3SV19, 4,64 66,4 71, 99,6 46SV6/A 38,6 3SV1, 4,64 77, 81,8 11,8 46SV6 38,6 3SV3, 4,64 77, 81,8 11,8 66SV1/1A 4 7,63 3SV4,37 1,3 1,3 16,6,9 66SV1, 1,4 3SV, 1,48,8,3 31, 66SV/A 7, 14, 3SV7,7 1,7 8, 9,7 4, 66SV/1A 11,3 3SV8,7 1,7 4,6 4,3 6,9 66SV 11,3 3SV9 1,1,39 4,6 43, 6,9 66SV3/A 1 6, 3SV11 1,1,39, 4,4 78, 66SV3/1A 1 6, 3SV1 1,1,39, 4,4 78, 66SV3 18, 33, 3SV13 1, 3,17 66,4 69,6 99,6 66SV4/A 18, 33, 3SV14 1, 3,17 66,4 69,6 99,6 66SV4/1A 38,6 3SV16 1, 3,17 77, 8,4 11,8 66SV4 38,6 3SV19, 4,64 77, 81,8 11,8 66SV/A 3 3,6 3SV19, 4,64 17, 111,8 16,8 66SV/1A 3 3,6 3SV1, 4,64 17, 111,8 16,8 66SV 3 3,6 3SV1, 4,64 17, 111,8 16,8 9SV1/1A, 1,4 3SV4,37 1,3,8, 31, 9SV1 7, 14, 3SV, 1,48 8, 9, 4, 9SV/A 11,3 3SV7,7 1,7 4,6 4,3 6,9 9SV 1 6, 3SV1 1,1,39, 4,4 78, 9SV3/A 18, 33, 3SV1 1,1,39 66,4 68,8 99,6 9SV3 38,6 3SV13 1, 3,17 77, 8,4 11,8 9SV4/A 3 3,6 3SV16 1, 3,17 17, 11,4 16,8 9SV4 3 3,6 3SV19, 4,64 17, 111,8 16,8 9SV/A 37 6,8 3SV1, 4,64 131,6 136, 197,4 1SV1 7, 14, 3SV4,37 1,3 8, 9,4 4, 1SV 1 6, 3SV8,7 1,7, 3,7 78, 1SV3 38,6 3SV11 1,1,39 77, 79,6 11,8 1SV4 3 3,6 3SV16 1, 3,17 17, 11,4 16,8 1SV 37 6,8 3SV19, 4,64 131,6 136, 197,4 The current shown is the nominal current of the set. gms_46-9sv_p-en_c_te 6

27 Booster sets MARKET SECTORS CIVIL, INDUSTRIAL GSD - GSY Series APPLICATIONS Water network supply in condominiums, offices, hotels, shopping centres, factories. Water supply to agricultural water networks (e.g. irrigation). GSD GSY SPECIFICATIONS Flow rate up to 3 m 3 /h. Head up to 16 m. Electrical panel supply voltage: 3 x 4V ± 1%. Frequency Hz. Voltage for controls outside panel: 4 Vac. Electrical panel protection class IP. Maximum service pump power: x 37 kw. Motor start-up: - Direct for powers up to kw inclusive for pump (GSD/). - Star/Delta for higher powers (GSY/ set). - Softstarter, available on request (GSSF/ set). Electric pumps with vertical axis: - SV series (motor protection class IP). Maximum operating pressure: 16 bar. Maximum temperature of pumped liquid : +8 C. 7

28 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSD DNA DNM A B C E H H1 H STD/DW AISI STD/DW AISI STD/DW AISI 1SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. gs_1sv-new-small-en_b_td 8

29 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSD RA DNA DNM A B C E H H1 H STD/DW AISI STD/DW AISI STD/DW AISI 1SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. gsra_1sv-new-small-en_b_td 9

30 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSD DNA DNM A B C H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs_1sv-new-en_b_td 3

31 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSD RA DNA DNM A B C H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gsra_1sv-new-en_b_td 31

32 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSD DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVF4T R 3" R 3" SV6FT R 3" R 3" SV7FT R 3" R 3" SV8F7T R 3" R 3" SV9F7T R 3" R 3" SV1F11T R 3" R 3" SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVFT R 3" R 3" SV6F7T R 3" R 3" SV7F7T R 3" R 3" SV8F11T R 3" R 3" SV9F11T R 3" R 3" SV1F11T R 3" R 3" Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs_1sv-new-en_d_td 3

33 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSD RA DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVF4T R 3" R 3" SV6FT R 3" R 3" SV7FT R 3" R 3" SV8F7T R 3" R 3" SV9F7T R 3" R 3" SV1F11T R 3" R 3" SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVFT R 3" R 3" SV6F7T R 3" R 3" SV7F7T R 3" R 3" SV8F11T R 3" R 3" SV9F11T R 3" R 3" SV1F11T R 3" R 3" Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gsra_1sv-new-en_d_td 33

34 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY 34

35 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT Note: for versions with vibration damping feet increase height by mm. gs_sv46-en_c_td16 GSD GSY 3

36 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY 36

37 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSDRA DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT Note: for versions with vibration damping feet increase height by mm. gsra_sv46-en_c_td16 GSD GSY 37

38 TWO-PUMP BOOSTER SETS, GSY SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSY DNA DNM A B C H1 H 66SV/AG3T SV/1AG3T SVG3T SV4/AG3T SV4G3T SV/AG37T Note: for versions with vibration damping feet increase height by mm. gs_sv-big-en_c_td 38

39 TWO-PUMP BOOSTER SETS, GSY RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSYRA DNA DNM A B C H1 H 66SV/AG3T SV/1AG3T SVG3T SV4/AG3T SV4G3T SV/AG37T Note: for versions with vibration damping feet increase height by mm. gsra_sv-big-en_c_td 39

40 TWO-PUMP BOOSTER SETS, GSD SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSD DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gs_1sv-en_a_td 4

41 TWO-PUMP BOOSTER SETS, GSD RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSDRA DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gsra_1sv-en_a_td 41

42 TWO-PUMP BOOSTER SETS, GSY SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD GSY GSY DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gs_1sv-big-en_a_td 4

43 TWO-PUMP BOOSTER SETS, GSY RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD GSY GSYRA DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gsra_1sv-big-en_a_td 43

44 GSD GSY 44

45 Booster sets GSD1 - GSY1 Series MARKET SECTORS CIVIL, INDUSTRIAL APPLICATIONS Water network supply in condominiums, offices, hotels, shopping centres, factories. Water supply to agricultural water networks (e.g. irrigation). GSD1 GSY1 SPECIFICATIONS Flow rate up to 3 m 3 /h. Head up to 16 m. Electrical panel supply voltage: 3 x 4V ± 1%. Frequency Hz. Voltage for controls outside panel: 4 Vac. Electrical panel protection class IP. Maximum service pump power: x 37 kw. Motor start-up : - Direct for powers up to kw inclusive for pump (GSD/). - Star/Delta for higher powers (GSY/ set). - Softstarter, available on request (GSSF/ set). Electric pumps with vertical axis: - SV series (motor protection class IP). Electric jockey pumps with vertical axis: - SV series (motor protection class IP). Maximum operating pressure: 16 bar. Maximum temperature of pumped liquid : +8 C. 4

46 TWO-PUMP BOOSTER SETS, GSD1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 GSY1 GSD 1 DNA DNM A B C D H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F7T R "1/ R "1/ SVF7T R "1/ R "1/ SV3F11T R "1/ R "1/ SV4F1T R "1/ R "1/ SVFT R "1/ R "1/ SV6FT R "1/ R "1/ SV7F3T R "1/ R "1/ SV8F3T R "1/ R "1/ SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. gs1_1sv-new-en_c_td 46

47 TWO-PUMP BOOSTER SETS, GSD1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1 GSY1 GSD 1RA DNA DNM A B C D H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F7T R "1/ R "1/ SVF7T R "1/ R "1/ SV3F11T R "1/ R "1/ SV4F1T R "1/ R "1/ SVFT R "1/ R "1/ SV6FT R "1/ R "1/ SV7F3T R "1/ R "1/ SV8F3T R "1/ R "1/ SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs1ra_1sv-new-en_c_td 47

48 TWO-PUMP BOOSTER SETS, GSD1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 GSY1 GSD 1 DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVF4T R 3" R 3" SV6FT R 3" R 3" SV7FT R 3" R 3" SV8F7T R 3" R 3" SV9F7T R 3" R 3" SV1F11T R 3" R 3" SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVFT R 3" R 3" SV6F7T R 3" R 3" SV7F7T R 3" R 3" SV8F11T R 3" R 3" SV9F11T R 3" R 3" SV1F11T R 3" R 3" Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs1_1sv-new-en_d_td 48

49 TWO-PUMP BOOSTER SETS, GSD1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1 GSY1 GSD 1 RA DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVF4T R 3" R 3" SV6FT R 3" R 3" SV7FT R 3" R 3" SV8F7T R 3" R 3" SV9F7T R 3" R 3" SV1F11T R 3" R 3" SV1F11T R 3" R 3" SVFT R 3" R 3" SV3F3T R 3" R 3" SV4F4T R 3" R 3" SVFT R 3" R 3" SV6F7T R 3" R 3" SV7F7T R 3" R 3" SV8F11T R 3" R 3" SV9F11T R 3" R 3" SV1F11T R 3" R 3" Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs1ra_1sv-new-en_d_td 49

50 TWO-PUMP BOOSTER SETS, GSD..Y1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 GSY1

51 TWO-PUMP BOOSTER SETS, GSD..Y1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 / GSY1 DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV/AG3T SV/1AG3T SVG3T SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT SV4/AG3T SV4G3T SV/AG37T DIMENSIONI SU RICHIESTA Note: for versions with vibration damping feet increase height by mm. gs1_sv46-en_d_td16 GSD1 GSY1 1

52 TWO-PUMP BOOSTER SETS, GSD..Y1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1 GSY1

53 TWO-PUMP BOOSTER SETS, GSD..Y1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1RA / GSY1RA DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV/AG3T SV/1AG3T SVG3T SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT SV4/AG3T SV4G3T SV/AG37T DIMENSIONI SU RICHIESTA Note: for versions with vibration damping feet increase height by mm. gs1ra_sv46-en_d_td16 GSD1 GSY1 3

54 TWO-PUMP BOOSTER SETS, GSD1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 GSY1 GSD1 DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gs1_1sv-en_a_td 4

55 TWO-PUMP BOOSTER SETS, GSD1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1 GSY1 GSD1RA DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gs1ra_1sv-en_a_td

56 TWO-PUMP BOOSTER SETS, GSD..Y1 SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD1 GSY1 GSY1 DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gs1_1sv-big-en_a_td 6

57 TWO-PUMP BOOSTER SETS, GSD..Y1 RA SERIES VERTICAL ELECTRIC PUMPS WITH JOCKEY PUMP NON-RETURN VAL ALVE ON SUCTION SIDE GSD1 GSY1 GSY1RA DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gs1ra_1sv-big-en_a_td 7

58 GSD1 GSY1 8

59 Booster sets GSD3 - GSY3 Series MARKET SECTORS CIVIL, INDUSTRIAL APPLICATIONS Water network supply in condominiums, offices, hotels, shopping centres, factories. Water supply to agricultural water networks (e.g. irrigation). GSD3 GSY3 SPECIFICATIONS Flow rate up to 48 m 3 /h. Head up to 16 m. Electrical panel supply voltage : 3 x 4V ± 1%. Frequency Hz. Voltage for controls outside panel: 4 Vac. Electrical panel protection class IP. Maximum service pump power: 3 x 37 kw. Motor start-up : - Direct for powers up to kw inclusive for pump (GSD/). - Star/Delta for higher powers (GSY/ set). - Softstarter, available on request (GSSF/ set). Electric pump with vertical axis: - SV series (motor protection class IP). Maximum operating pressure 16 bar. Maximum temperature of pumped liquid : +8 C. 9

60 THREE-PUMP BOOSTER SETS, GSD3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 GSD 3 DNA DNM A B C D H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F7T R "1/ R "1/ SVF7T R "1/ R "1/ SV3F11T R "1/ R "1/ SV4F1T R "1/ R "1/ SVFT R "1/ R "1/ SV6FT R "1/ R "1/ SV7F3T R "1/ R "1/ SV8F3T R "1/ R "1/ SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs3_1sv-new-en_c_td 6

61 THREE-PUMP BOOSTER SETS, GSD3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 GSD 3RA DNA DNM A B C D H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F7T R "1/ R "1/ SVF7T R "1/ R "1/ SV3F11T R "1/ R "1/ SV4F1T R "1/ R "1/ SVFT R "1/ R "1/ SV6FT R "1/ R "1/ SV7F3T R "1/ R "1/ SV8F3T R "1/ R "1/ SV9F4T R "1/ R "1/ SV1F4T R "1/ R "1/ SV11F4T R "1/ R "1/ SV13FT R "1/ R "1/ Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs3ra_1sv-new-en_c_td 61

62 THREE-PUMP BOOSTER SETS, GSD3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 GSD 3 DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T SVFT SV3F3T SV4F4T SVF4T SV6FT SV7FT SV8F7T SV9F7T SV1F11T SV1F11T SVFT SV3F3T SV4F4T SVFT SV6F7T SV7F7T SV8F11T SV9F11T SV1F11T Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs3_1sv-new-en_d_td 6

63 THREE-PUMP BOOSTER SETS, GSD3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 GSD 3 RA DNA DNM A B C D E F G H H1 H H3 STD/DW AISI STD/DW AISI STD/DW AISI 1SV1F11T SVFT SV3F3T SV4F4T SVF4T SV6FT SV7FT SV8F7T SV9F7T SV1F11T SV1F11T SVFT SV3F3T SV4F4T SVFT SV6F7T SV7F7T SV8F11T SV9F11T SV1F11T Dimensions in mm. Tolerance ± 1 mm. Note: for versions with vibration damping feet increase height by 3 mm. gs3ra_1sv-new-en_d_td 63

64 THREE-PUMP BOOSTER SETS, GSD3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 64

65 THREE-PUMP BOOSTER SETS, GSD3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT Note: for versions with vibration damping feet increase height by mm. gs3_sv46-en_c_td16 GSD3 GSY3 6

66 THREE-PUMP BOOSTER SETS, GSD3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 66

67 THREE-PUMP BOOSTER SETS, GSD3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3RA DNA DNM A B C D E F G H H1 H H3 33SV1/1AGT SV1G3T SV/AG4T SV/1AG4T SVGT SV3/AGT SV3/1AG7T SV3G7T SV4/AG7T SV4/1AG11T SV4G11T SV/AG11T SV/1AG11T SVG1T SV6/AG1T SV6/1AG1T SV6G1T SV7/AG1T SV1/1AG3T SV1G4T SV/AGT SVG7T SV3/AG11T SV3G11T SV4/AG1T SV4G1T SV/AG18T SVG18T SV6/AGT SV6GT SV1/1AG4T SV1GT SV/AG7T SV/1AG11T SVG11T SV3/AG1T SV3/1AG1T SV3G18T SV4/AG18T SV4/1AGT SV4GT SV1/1AGT SV1G7T SV/AG11T SVG1T SV3/AG18T SV3GT Note: for versions with vibration damping feet increase height by mm. gs3ra_sv46-en_c_td16 GSD3 GSY3 67

68 THREE-PUMP BOOSTER SETS, GSY3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 GSY3 DNA DNM A B C H1 H SV66/F3T SV66/1F3T SV66F3T SV94/F3T SV94F3T SV9/F37T Note: for versions with vibration damping feet increase height by mm. gs3_sv-big-en_b_td 68

69 THREE-PUMP BOOSTER SETS, GSY3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 GSY3RA DNA DNM A B C H1 H SV66/F3T SV66/1F3T SV66F3T SV94/F3T SV94F3T SV9/F37T Note: for versions with vibration damping feet increase height by mm. gs3ra_sv-big-en_b_td 69

70 THREE-PUMP BOOSTER SETS, GSD3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 GSD3 DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gs3_1sv-en_a_td 7

71 THREE-PUMP BOOSTER SETS, GSD3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 GSD3RA DNA DNM A B C D E F G H H1 H H3 1SV1G7T SVG1T SV3GT Note: for versions with vibration damping feet increase height by mm. gs3ra_1sv-en_a_td 71

72 THREE-PUMP BOOSTER SETS, GSY3 SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON DISCHARGE SIDE GSD3 GSY3 GSY3 DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gs3_1sv-big-en_a_td 7

73 THREE-PUMP BOOSTER SETS, GSY3 RA SERIES VERTICAL ELECTRIC PUMPS WITH NON-RETURN VAL ALVE ON SUCTION SIDE GSD3 GSY3 GSY3RA DNA DNM A B C H H1 H 1SV4G3T SVG37T Note: for versions with vibration damping feet increase height by mm. gs3ra_1sv-big-en_a_td 73

74 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (JOCKEY PUMP) 3SV..3SV1 9 [rpm] ISO Annex A Q [US gpm] CURVES ,1 7 P p [kw],8,4 6 4 η kw/stage Q [m 3 /h] Q [l/min] η [%] NPS 7698_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show performance with one pump running. These performances are valid for liquids with density ρ = 1. kg/dm³ and kinematic viscosity ν = 1 mm²/s. 74

75 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV1 8 [rpm] ISO Annex A 1SV 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 76811_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 7681_A_CH 1SV3 8 [rpm] ISO Annex A 1SV4 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 76813_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 76814_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 7

76 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV 8 [rpm] ISO Annex A 1SV6 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 7681_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 76816_A_CH 1SV7 8 [rpm] ISO Annex A 1SV8 8 [rpm] ISO Annex A CURVES Q [US gpm] Q [US gpm] NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 76817_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 76818_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 76

77 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV9 8 [rpm] ISO Annex A 1SV1 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 76819_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 768_A_CH 1SV11 8 [rpm] ISO Annex A 1SV13 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] 17 1 CURVES NPS 8 NPS Q [m 3 /h] 4 6 Q 8 [l/min] 7681_A_CH Q [m 3 /h] 4 6 Q 8 [l/min] 768_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 77

78 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV1 8 [rpm] ISO Annex A 1SV 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m 3 8 /h] Q [l/min] 7683_A_CH 4 6 Q [m 3 8 /h] Q [l/min] 7684_A_CH 1SV3 8 [rpm] ISO Annex A 1SV4 8 [rpm] ISO Annex A CURVES Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m 3 8 /h] Q [l/min] 768_A_CH 4 6 Q [m 3 8 /h] Q [l/min] 7686_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 78

79 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV 8 [rpm] ISO Annex A 1SV6 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m 3 8 /h] Q [l/min] 7687_A_CH 4 6 Q [m 3 8 /h] Q [l/min] 7688_A_CH 1SV7 8 [rpm] ISO Annex A 1SV8 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS 4 1 NPS Q [m 3 8 /h] Q [l/min] 7689_A_CH 4 6 Q [m 3 8 /h] Q [l/min] 7683_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 79

80 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV9 8 [rpm] ISO Annex A 1SV1 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m 3 8 /h] Q [l/min] 76831_A_CH 4 6 Q [m 3 8 /h] Q [l/min] 7683_A_CH SV1 8 [rpm] ISO Annex A SV 8 [rpm] ISO Annex A CURVES Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m1 3 /h] Q [l/min] 76833_A_CH Q [m1 3 /h] Q [l/min] 76834_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 8

81 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) SV3 8 [rpm] ISO Annex A SV4 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m1 3 /h] Q [l/min] 7683_A_CH Q [m1 3 /h] Q [l/min] 76836_A_CH SV 8 [rpm] ISO Annex A SV6 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS 4 1 NPS Q [m1 3 /h] Q [l/min] 76837_A_CH Q [m1 3 /h] Q [l/min] 76838_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 81

82 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) SV7 8 [rpm] ISO Annex A SV8 8 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m1 3 /h] Q [l/min] 76839_A_CH Q [m1 3 /h] Q [l/min] 7684_A_CH SV9 8 [rpm] ISO Annex A SV1 8 [rpm] ISO Annex A CURVES Q [US gpm] Q [US gpm] NPS 4 1 NPS Q [m1 3 /h] Q [l/min] 76841_A_CH Q [m1 3 /h] Q [l/min] 7684_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 8

83 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 18 33SV1/1A 9 [rpm] ISO Annex A Q [US gpm] SV1 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 71_C_CH Q [m14 3 /h] 1 1 Q [l/min] 716_C_CH SV/A 9 [rpm] ISO Annex A Q [US gpm] SV/1A 9 [rpm] ISO Annex A Q [US gpm] CURVES NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 717_C_CH Q [m14 3 /h] 1 1 Q [l/min] 718_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 83

84 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 4 33SV 9 [rpm] ISO Annex A Q [US gpm] SV3/A 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 719_C_CH Q [m14 3 /h] 1 1 Q [l/min] 7_C_CH CURVES SV3/1A 9 [rpm] ISO Annex A Q [US gpm] SV3 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 71_C_CH Q [m14 3 /h] 1 1 Q [l/min] 7_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 84

85 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) SV4/A 9 [rpm] ISO Annex A Q [US gpm] SV4/1A 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 73_C_CH Q [m14 3 /h] 1 1 Q [l/min] 74_C_CH SV4 9 [rpm] ISO Annex A Q [US gpm] SV/A 9 [rpm] ISO Annex A Q [US gpm] CURVES NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 7_C_CH Q [m14 3 /h] 1 1 Q [l/min] 76_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 8

86 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 33SV/1A 9 [rpm] ISO Annex A 33SV 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 77_C_CH Q [m14 3 /h] 1 1 Q [l/min] 78_C_CH CURVES SV6/A 9 [rpm] ISO Annex A Q [US gpm] SV6/1A 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 79_C_CH Q [m14 3 /h] 1 1 Q [l/min] 73_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 86

87 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) SV6 9 [rpm] ISO Annex A Q [US gpm] SV7/A 9 [rpm] ISO Annex A Q [US gpm] NPS NPS Q [m14 3 /h] 1 1 Q [l/min] 731_C_CH Q [m14 3 /h] 1 1 Q [l/min] 73_C_CH 46SV1/1A 9 [rpm] ISO Annex A 46SV1 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS NPS Q [m 3 /h] Q [l/min] 733_C_CH 1 1 Q [m 3 /h] Q [l/min] 734_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 87

88 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 46SV/A 9 [rpm] ISO Annex A 46SV 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 73_C_CH 1 1 Q [m 3 /h] Q [l/min] 736_C_CH 46SV3/A 9 [rpm] ISO Annex A 46SV3 9 [rpm] ISO Annex A CURVES Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 737_C_CH 1 1 Q [m 3 /h] Q [l/min] 738_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 88

89 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 46SV4/A 9 [rpm] ISO Annex A 46SV4 9 [rpm] ISO Annex A Q [US gpm] 8 1 Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 739_C_CH 1 1 Q [m 3 /h] Q [l/min] 74_C_CH 46SV/ 9 [rpm] ISO Annex A 46SV 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS NPS Q [m 3 /h] Q [l/min] 741_C_CH 1 1 Q [m 3 /h] Q [l/min] 74_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 89

90 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 46SV6/A 9 [rpm] ISO Annex A 46SV6 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 743_C_CH 1 1 Q [m 3 /h] Q [l/min] 744_C_CH 66SV1/1A 9 [rpm] ISO Annex A 66SV1 9 [rpm] ISO Annex A CURVES 1 Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 74_C_CH 1 Q [m 3 /h] Q [l/min] 746_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 9

91 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 66SV/A 9 [rpm] ISO Annex A SV/1A 9 [rpm] ISO Annex A 7 1 Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 747_C_CH 1 Q [m 3 /h] Q [l/min] 748_C_CH 66SV 9 [rpm] ISO Annex A 66SV3/A 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS NPS Q [m 3 /h] Q [l/min] 749_C_CH 1 Q [m 3 /h] 3 Q [l/min] _C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 91

92 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1 66SV3/1A 9 [rpm] ISO Annex A 7 1 Q [US gpm] SV3 9 [rpm] ISO Annex A 7 1 Q [US gpm] NPS 1 1 Q [m 3 /h] Q [l/min] 7_C_CH CURVES SV4/A 9 [rpm] ISO Annex A 7 1 Q [US gpm] Q [US gpm] NPS 1 1 Q [m 3 /h] Q [l/min] 71_C_CH 66SV4/1A 9 [rpm] ISO Annex A NPS NPS Q [m 3 /h] Q [l/min] 73_C_CH 1 Q [m 3 /h] Q [l/min] 74_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 9

93 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 66SV4 9 [rpm] ISO Annex A 66SV/A 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 7_C_CH 1 Q [m 3 /h] Q [l/min] 76739_B_CH 66SV/1A 9 [rpm] ISO Annex A 66SV 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS NPS Q [m 3 /h] Q [l/min] 7674_B_CH 1 Q [m 3 /h] Q [l/min] 76741_B_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 93

94 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 9SV1/1A 9 [rpm] ISO Annex A 9SV1 9 [rpm] ISO Annex A Q [US gpm] 1 1 Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 76_C_CH 1 3 Q [m 3 /h] Q [l/min] 77_C_CH 9SV/A 9 [rpm] ISO Annex A 9SV 9 [rpm] ISO Annex A 1 1 CURVES 6 Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 78_C_CH 1 3 Q [m 3 /h] Q [l/min] 79_C_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 94

95 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 9SV3/A 9 [rpm] ISO Annex A 9SV3 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 76_C_CH 1 3 Q [m 3 /h] Q [l/min] 761_C_CH 9SV4/A 9 [rpm] ISO Annex A 9SV4 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] CURVES NPS NPS Q [m 3 /h] Q [l/min] 7674_B_CH 1 3 Q [m 3 /h] Q [l/min] 76743_B_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 9

96 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 9SV/A 9 [rpm] ISO Annex A 1 1SV1 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 76744_B_CH Q [m 3 /h] Q [l/min] 7698_A_CH 1SV 9 [rpm] ISO Annex A 1SV3 9 [rpm] ISO Annex A CURVES 6 4 Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 76984_A_CH Q [m 3 /h] Q [l/min] 7698_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. 96

97 BOOSTER SETS, GS.../SV SERIES OPERATING CHARACTERISTICS S AT Hz (SERVICE PUMP) 1SV4 9 [rpm] ISO Annex A 1 1 1SV 9 [rpm] ISO Annex A Q [US gpm] Q [US gpm] NPS NPS Q [m 3 /h] Q [l/min] 76986_A_CH Q [m 3 /h] Q [l/min] 76983_A_CH The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /s. The declared NPSH values are laboratory values: for practical use we recommend increasing these values by. m. CURVE 97

98 BOOSTER SETS, GS.../SV SERIES Hc PRESSURE SURE DROP CURVE 1SV SUCTION SIDE 1SV DISCHARGE SIDE Q [US gpm] 7,1 Hc [m],8 Hc [ft],3 Hc [m] Q [US gpm] 7, 8 7, 6 Hc [ft],6 A, 1, A 4,4,,1 1,, 3 1,, Hc [m], 1, Col 1 vs Col Col vs Col 1 Col vs Col 1, Hc [ft],,1 Hc [m],8,6 Col 1 vs Col Col vs Col 1 Col vs Col 1 B,3 Hc [ft], B 4 1,, 3,4,,1 1, Q [m 3 16 /h] 1 1 Q [l/min] 768_A_CH,, Q [m 3 16 /h] 1 1 Q [l/min] 7688_A_CH 1SV SUCTION SIDE 1SV DISCHARGE SIDE CURVE ,1 Hc [m],8 Q [US gpm],3 Hc [ft] Hc [m] A Q [US gpm] 1 Hc [ft],6, 3 1 A,4,1, 1,,,1 Hc [m] 4 Col 1 vs Col Col vs Col 1 Col vs Col 1 B 1 Hc [ft] Hc [m],8 Col 1 vs Col Col vs Col 1 Col vs Col 1,3 Hc [ft] 3 1,6 B,,4,1 1, 1 1 Q [m 3 /h] Q [l/min] 7686_A_CH,, 1 1 Q [m 3 /h] Q [l/min] 7689_A_CH The declared curves are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /sec. Hc (A): Pressure drop curve with check valve installed on the delivery side of the pump. Hc (B): Pressure drop curve with check valve installed on the suction side of the pump. The pressure drops do not consider the pressure drops distributed in the manifold. 98

99 BOOSTER SETS, GS.../SV SERIES Hc PRESSURE SURE DROP CURVE SV SUCTION SIDE SV DISCHARGE SIDE Hc [m], Q [US gpm] Hc [ft] Hc [m] Q [US gpm] Hc [ft],1,4 6,1,8 A,3 4 A 1,6, 1,4,,1, 1 Hc [m], 3 Hc [ft],1 Hc [m],3 8 Col 1 vs Col Col vs Col 1 Col vs Col 1 B,8 Col 1 vs Col Col vs Col 1 Col vs Col 1 Hc [ft] 6,6 B, 4 1,4 1,1, Q [m 3 /h] Q [l/min] 7687_A_CH,, Q [m 3 /h] Q [l/min] 7681_A_CH 33SV SUCTION SIDE 33SV DISCHARGE SIDE Q [Imp 18 gpm] Q [Imp 18 gpm] Q [US gpm],8, Hc [m] Hc [ft],6, A 1,,4 Hc [m] Q [US gpm] A 1 Hc [ft] CURVE 1,,, 1, Hc [m] 4 3 Col 1 vs Col Col vs Col 1 Col vs Col 1 B, 1 Hc [ft] 1,8 Hc [m],6 Col 1 vs Col Col vs Col 1 Col vs Col 1 B, Hc [ft], 1,,4 1, 1,, Q [m 3 /h] 4 6 Q [l/min] _B_CH,, Q [m 3 /h] 4 6 Q [l/min] _B_CH The declared curves are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /sec. Hc (A): Pressure drop curve with check valve installed on the delivery side of the pump. Hc (B): Pressure drop curve with check valve installed on the suction side of the pump. The pressure drops do not consider the pressure drops distributed in the manifold. 99

100 BOOSTER SETS, GS.../SV SERIES Hc PRESSURE SURE DROP CURVE 46SV SUCTION SIDE 46SV DISCHARGE SIDE 1 1 Q [Imp gpm] 1 1 Q [Imp gpm] Hc [m] 1 1 Q 3 [US gpm],8,,6, Hc [ft] Hc [m] 1 1 Q 3 [US gpm] 1 4 Hc [ft],4 A 1, 3 A 1 1,,, 1, Hc [m] 4 3 Col 1 vs Col Col vs Col 1 Col vs Col 1 B, 1 Hc [ft] 1,8 Hc [m],6,4 Col 1 vs Col Col vs Col 1 Col vs Col 1 B, Hc [ft], 1, 1, 1,, Q [m 3 /h] Q [l/min] 76736_B_CH,, Q [m 3 /h] Q [l/min] 7678_B_CH 66SV SUCTION SIDE 66SV DISCHARGE SIDE Q 3 [Imp gpm] Q 3 [Imp gpm] CURVE Hc [m] 1 3 4,6,4 Q [US gpm] Hc [ft] 1, Hc [m] Q [US gpm] Hc [ft] 7, A 1, A,, 1,,, 3,,6, Hc [m] Col 1 vs Col Col vs Col 1 Col vs Col 1 Hc [ft] 7, Hc [m],4 Col 1 vs Col Col vs Col 1 Col vs Col 1 Hc [ft] 1, B, B 1, 1,,,, Q [m 3 /h] Q 16 [l/min] 76737_B_CH,, Q [m 3 /h] Q 16 [l/min] 7679_B_CH The declared curves are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /sec. Hc (A): Pressure drop curve with check valve installed on the delivery side of the pump. Hc (B): Pressure drop curve with check valve installed on the suction side of the pump. The pressure drops do not consider the pressure drops distributed in the manifold. 1

101 BOOSTER SETS, GS.../SV SERIES Hc PRESSURE SURE DROP CURVE 9SV SUCTION SIDE 9SV DISCHARGE SIDE Q [Imp gpm] Q 6 [US gpm] 1, Q [Imp gpm] Q 6 [US gpm] Hc [m],8 3 Hc [ft] Hc [m] 4 1 Hc [ft],6 A 3 A 1,4 1, 1, 1, Hc [m] 4 3 Col 1 vs Col Col vs Col 1 Col vs Col 1 B 1 Hc [ft] 1 Hc [m],8,6 Col 1 vs Col Col vs Col 1 Col vs Col 1 B 3 Hc [ft],4 1 1, Q [m 3 /h] Q [l/min] 76738_B_CH, Q [m 3 /h] Q [l/min] 7673_B_CH 1SV SUCTION SIDE 1SV DISCHARGE SIDE Hc [m] ,6,,4 A,3 Q [US gpm] 1,8 1,6 1,4 1, 1,,8 Hc [ft] Hc [m] , 1, A 1, Q [US gpm] Hc [ft] CURVE,,1,6,4,, 1 Hc [m],, 1, Col 1 vs Col Col vs Col 1 Col vs Col 1, 6 4 Hc [ft] Hc [m],,6,,4 Col 1 vs Col Col vs Col 1 Col vs Col 1 1,8 1,6 1,4 1, Hc [ft] 1, B 3, 1, Q [m 3 18 /h] 76936_A_CH,3 B 1,,8,,6,4,1,,, Q [m 3 18 /h] 7693_A_CH Q [l/min] Q [l/min] The declared curves are valid for liquids with density ρ = 1. Kg/dm 3 and kinematic viscosity ν = 1 mm /sec. Hc (A): Pressure drop curve with check valve installed on the delivery side of the pump. Hc (B): Pressure drop curve with check valve installed on the suction side of the pump. The pressure drops do not consider the pressure drops distributed in the manifold. 11

102 CURVE 1

103 ACCESSORIES SORIES ACCESSORIES SORIES 13

104 DIAPHRAGM TANKS The booster sets are ready for installation, directly on the manifold, of 4-litre diaphragm tanks, one for each pump. The sets are also equipped with caps to close off the unused couplings. Larger tanks can also be connected to the unused end of the discharge manifold. For proper sizing of the tank please refer to the technical appendix. Kits featuring the following accessories are available on request: diaphragm tank; on-off ball valve; operating instructions; packaging. DIAPHRAGM TANK KIT Volume PN DIMENSIONS (mm) Materials Litres bar ø A B Valve Diaphragm Vessel Valve " FF EPDM Painted steel Nickel-plated brass " FF EPDM Painted steel Nickel-plated brass " FF EPDM Painted steel Nickel-plated brass " FF EPDM Painted steel Nickel-plated brass " FF Butyl Stainless steel AISI 316 Stainless steel COUNTERFLANGE KIT Manifolds up to 3" in diameter are usually supplied with threaded couplings and caps on unused end. Counterflange coupling kits made of zinc-plated or stainless steel are available on request. The counterflange kits are equipped with: - threaded flange. - gasket and bolts/screws. - threaded counterflange (weld-on type for 3" diameter). THREADED COUNTERFLANGES gcom-vmb_en_b_td ACCESSORIES SORIES KIT DIMENSIONS (mm) HOLES TYPE DN ø C ø A B ø D H ø F N PN " Rp " ½ 6 Rp ½ " 8 Rp Gcom-ctf-tonde-f-en_a_td WELD-ON COUNTERFLANGES KIT DIMENSIONS (mm) HOLES TYPE DN ø C ø A B ø D ø F N PN " "1/ " " " 1 141, " 1 17, " 1, " 76, " 3 37, Gcom-ctf-tonde-s-en_c_td 14

105 RUBBER EXPANSION JOINT KIT The anti-vibrating joints or compensation joints can be used in order to absorb deformations, expansions, noises in the piping and to reduced ram blows. Moreover they can resist a high degree of empty that allows the absorption of negative expansions for depression. Being of elastic material it can be become deformed and be dilated facilitating therefore the installation, that it becomes simpler and fast, also in which the piping they are not aligned. It does not need assembly joints. TABELLA 1 TABLE 1 GIUNTI ELASTICI A-B-C-D non possono essere sommati A-B-C-D can not be cumulative L A B C D RUBBER EXPANSION JOINT COMPRESSIONE ESTENSIONE SPOSTAMENTO FLESSIONE ANGOLARE COMPRESSION EXTENSION TRANSVERSE ANGULAR MOVEMENT mm mm mm mm ( ) DN 3 1"1/ "1/ " "1/ " " " " " " " " " " " GD_JOINT_A_TD VIBRATION DAMPERS DIMENSIONS (mm) TYPE SHORE ø A H L M VIBRATION DAMPER PX VIBRATION DAMPER P4X VIBRATION DAMPER P1X Note: Available versions M/F and F/F bst-ant-piedini-en_a_td ACCESSORIES SORIES 1

106 DRY RUNNING PROTECTION SYSTEMS Dry run shutdown systems should be installed to protect the pumps in case of insufficient water supply. FLOAT SWITCH PROTECTION METHOD The float switch protection system is used when the water supply comes from open tanks. A float switch immersed in the tank is connected to the electrical panel. If the water supply is insufficient, the float switch opens the electric contact and the pumps stop running. Gcom-pms1_a_dd ELECTRODE PROBE PROTECTION METHOD The electrode probe protection system is used when the water supply comes from open tanks or wells. A set of three probes is connected directly to the electronic board in the electrical panel. With the three electrodes immersed in the water, the relay on the electronic board closes the contact, enabling the starting of the pumps. If the water supply is insufficient, the control circuit opens the electric contact and the pumps stop running. Gcom-pms_a_dd ACCESSORIES SORIES MINIMUM PRESSURE SURE SWITCH PROTECTION METHOD The minimum pressure switch protection system is used when the water supply comes from water networks or pressurized tanks. The pressure switch is connected to the electronic board in the electrical panel. If the water supply is insufficient, the pressure switch opens the electric contact and the pumps stop running. Gcom-pms3_a_dd 16

107 TECHNICAL APPENDIX TECHNICAL APPENDIX 17

108 WATER REQUIREMENTS IN CIVIL USERS Determination of the water requirement depends on the type of users and contemporaneity factor. The calculation may be subject to regulations, standards or customs that may vary from country to country. The calculation method shown below is an example based on practical experience, designed to provide a reference value and not a substitute for detailed analytical calculation. Water requirements in condominiums The consumption table shows the maximum values for each delivery point, depending on the plumbing amenities. MAXIMUM CONSUMPTION FOR EACH DELIVERY POINT TYPE CONSUMPTION (l/min) Sink 9 Dishwasher 1 Washing machine 1 Shower 1 Bathtub 1 Washbasin 6 Bidet 6 Flush tank WC 6 Controlled flushing system WC 9 G-at-cm_a_th The sum of the water consumption values of each delivery point determines the maximum theoretical requirement, which must be reduced according to the contemporaneity coefficient, because in actual fact the delivery points are never used all together. f = 1 (,87x Nrx Na) Coefficient for apartments with one bathroom and flush tank WC f = 1 (,87x Nrx Na) Coefficient for apartments with one bathroom and controlled flushing system WC f = 1,3 (,4x Nrx Na) Coefficient for apartments with two bathrooms and flush tank WC f =,8 (,77x Nrx Na) Coefficient for apartments with two bathrooms and controlled flushing system WC f= coefficient; Nr= number of delivery points; Na= number of apartments TECHNICAL APPENDIX The table of water requirements in civil users shows the maximum contemporaneity flow-rate values based on the number of apartments and the type of WC for apartments with one bathroom and two bathrooms. As regards apartments with one bathroom, 7 drawing points have been taken into consideration, while 11 points have been considered for apartments with two bathrooms. If the number of drawing points or apartments is different, use the formulas to calculate the requirement. 18

109 TABLE OF WATER REQUIREMENTS IN CIVIL USERS NUMBER OF WITH FLUSH TANK WC WITH CONTROLLED FLUSHING SYSTEM WC APARTMENTS 1 1 FLOW RATE (l/min) For seaside resorts, a flow rate increased by at least % must be considered. G-at-fi_a_th TECHNICAL APPENDIX 19

110 WATER REQUIREMENTS FOR COMMUNITY BUILDINGS The requirements of buildings intended for specific uses, such as offices, residential units, hotels, department stores, nursing homes and so on, are different from those of condominiums, and both their global daily water consumption and the maximum contemporaneity flow rate are usually greater. The diagram of water requirements for community buildings shows the maximum contemporaneity flow rate of some types of communities, for guidance. These requirements must be determined case by case with the utmost accuracy, using analytical calculation methods, according to particular needs and local provisions. For seaside resorts, the flow rate must be increased by at least %. TECHNICAL APPENDIX 1= Offices (N. of people) = Department stores (N. of people) 3= Nursing homes (N. of beds) 4= Hotels, residences (N. of beds) 11

111 USE OF BOOSTER SET Water is usually delivered by public supply systems and the pressure is generally sufficient for the proper operation of the users water and sanitary equipment. When this pressure is not sufficient, booster sets are employed to increase water pressure and ensure an acceptable minimum value at the furthest points. Therefore, the water supply to a building, group of buildings or to a system in general can be considered satisfactory when all the user points can deliver the required quantity of water. Set connection methods (intake side) Water can be supplied to a booster set in two ways: 1 - By installing a water storage tank between the user s offtake and the booster set (indirect connection, fig ). - By connecting the booster set directly between the user s offtake and the system (direct connection, fig ). The indirect connection does not allow the water system pressure to be utilized. Therefore, it requires pumps with greater head. The direct connection allows the water system pressure to be utilized, provided the pressure fluctuation ( p) does not exceed 1 bar. If it does, a pressure reducer must be installed for proper operation of the booster set. INDIRECT UTILISATION SUPPLY USER S OFFTAKE WATER STORAGE TANK BOOSTER SET WATER PIPE UNDER PRESSURE (1) SUPPLY DIRECT PRESSURE REDUCER IF p > Ibar BOOSTER SET USER S OFFTAKE (1) BY PIPE UNDER PRESSURE WE MEAN A WATER SYSTEM, A CLOSED TANK, ETC. () IN THE CASE OF A WATER SYSTEM INSTALL A CHECK VALVE (A) OR A DISCONNECTING DEVICE (B), UNLESS OTHERWISE PROVIDED BY LOCAL REGULATIONS fig TECHNICAL APPENDIX 111

112 Water supply systems in civil buildings The configuration of the supply system must comply with the following conditions: - The minimum pressure ensuring the proper operation of the equipment must be guaranteed at the most unfavourable drawing point (1. bar for valves and flush tank WC, and bar for controlled flushing system WC). - At the most favourable drawing point, pressure must not exceed bar. Once these parameters have been satisfied, in relation to the height of the building and to the set intake conditions, the water supply system can have one of the following configurations: SUPPLY SUPPLY A) THE SET SERVES THE ENTIRE BUILDING B) THE SET SERVES THE ENTIRE BUILDING, BUT THE LOWER FLOORS ARE CONNECTED THROUGH A PRESSURE REDUCER SINCE THE PRESSURE TO THE NEAREST UTILIZATION POINTS IS TOO HIGH fig fig TECHNICAL APPENDIX SUPPLY WATER PIPE UNDER PRESSURE BOOSTER SET SUPPLY WATER PIPE UNDER PRESSURE BOOSTER SET C) THE SET SERVES THE UPPER FLOORS, WHEREAS THE LOWER FLOORS D) THIS CASE RESEMBLES THE PREVIOUS ONE ARE SUPPLIED BY THE WATER PIPE UNDER PRESSURE EXCEPT THAT PRESSURE REDUCERS NEED TO BE INSTALLED ON SOME OF THE LOWER FLOORS fig fig

113 DETERMINING THE HEAD OF THE SET AND INTAKE CONDITIONS Level intake The delivery head of the set (H tot) is the sum of: - He : geodetic difference in level between the set and the furthest delivery point. - Hc : flow resistance along all the pipes and through other system components, such as valves, filters, etc.. - Hr : pressure required at the most unfavourable point. H tot = He+Hc+Hr Intake with positive head In this case, the necessary delivery head (H tot) will be reduced by the inlet pressure value (Hi). H tot = He+Hc+Hr- Hi Intake with negative head When the pumps suck from an underground tank or well, the necessary head will be increased by the value of the intake height (Ha):. H tot = He+Hc+Hr+ Ha In this case the intake height must be considered very carefully, bearing in mind that an excessive difference in level between the water storage tank and the set, or the wrong sizing of the intake pipe, can have adverse effects on pump operation, such as cavitation and unpriming. TECHNICAL APPENDIX 113

114 NPSH TECHNICAL APPENDIX The minimum operating values that can be reached at the pump suction end are limited by the onset of cavitation. Cavitation is the formation of vapour-filled cavities within liquids where the pressure is locally reduced to a critical value, or where the local pressure is equal to, or just below the vapour pressure of the liquid. The vapour-filled cavities flow with the current and when they reach a higher pressure area the vapour contained in the cavities condenses. The cavities collide, generating pressure waves that are transmitted to the walls. These, being subjected to stress cycles, gradually become deformed and yield due to fatigue. This phenomenon, characterized by a metallic noise produced by the hammering on the pipe walls, is called incipient cavitation. The damage caused by cavitation may be magnified by electrochemical corrosion and a local rise in temperature due to the plastic deformation of the walls. The materials that offer the highest resistance to heat and corrosion are alloy steels, especially austenitic steel. The conditions that trigger cavitation may be assessed by calculating the total net suction head, referred to in technical literature with the acronym NPSH (Net Positive Suction Head). The NPSH represents the total energy (expressed in m.) of the liquid measured at suction under conditions of incipient cavitation, excluding the vapour pressure (expressed in m.) that the liquid has at the pump inlet. To find the static height hz at which to install the machine under safe conditions, the following formula must be verified: hp + hz (NPSHr +.) + hf + hpv where: hp is the absolute pressure applied to the free liquid surface in the suction tank, expressed in m. of liquid; hp is the quotient between the barometric pressure and the specific weight of the liquid. hz is the suction lift between the pump axis and the free liquid surface in the suction tank, expressed in m.; hz is negative when the liquid level is lower than the pump axis. hf is the flow resistance in the suction line and its accessories, such as: fittings, foot valve, gate valve, elbows, etc. hpv is the vapour pressure of the liquid at the operating temperature, expressed in m. of liquid. hpv is the quotient between the Pv vapour pressure and the liquid s specific weight., is the safety factor. 1 The maximum possible suction head for installation depends on the value of the atmospheric pressure (i.e. the elevation above sea level at which the pump is installed) and the temperature of the liquid. To help the user, with reference to water temperature (4 C) and to the elevation above sea level, the following tables show the drop in hydraulic pressure head in relation to the elevation above sea level, and the suction loss in relation to temperature. Water temperature ( C) Suction loss (m),,7,, 7,4 1,4 1, Elevation above sea level (m) Suction loss (m), 1,1 1,6,,7 3,3 Friction loss is shown in the tables at pages of this catalogue. To reduce it to a minimum, especially in cases of high suction head (over 4- m.) or within the operating limits with high flow rates, we recommend using a suction line having a larger diameter than that of the pump s suction port. It is always a good idea to position the pump as close as possible to the liquid to be pumped. Make the following calculation: Liquid: water at ~1 C γ = 1 kg/dm 3 Flow rate required: 3 m 3 /h Head for required delivery: 43 m. Suction lift: 3, m. The selection is an FHE 4-/7 pump whose NPSH required value is, at 3 m 3 /h, di, m. For water at 1 C hp = Pa / γ = 1,33m, hpv = Pv / γ =,174m (,171 bar) The Hf flow resistance in the suction line with foot valves is ~ 1, m. By substituting the parameters in formula 1 with the numeric values above, we have: 1,33 + (-3,) (, +,) + 1, +,17 from which we have: 6,8 > 4,4 The relation is therefore verified. 114

115 TECHNICAL APPENDIX VAPOUR PRESSURE PS VAPOUR PRESSURE AND ρ DENSITY OF WATER TABLE t T ps ρ t T ps ρ t T ps ρ C K bar kg/dm 3 C K bar kg/dm 3 C K bar kg/dm 3 73,1,611, ,1,1741, ,1 1,984, ,1,67, ,1,1611, ,1,114,941 7,1,76, ,1,17313, ,1,4, ,1,78, ,1,18147, ,1,3933, ,1,813 1, 9 33,1,1916, ,1,43,936 78,1,87 1, 6 333,1,199, ,1,713, ,1,93 1, ,1,86, ,1,867, ,1,11, ,1,184, ,1 3,41, ,1,17, ,1,86, ,1 3,3, ,1,1147, ,1,391, ,1 3,414, ,1,17, ,1,1, ,1 3,614, ,1,131, ,1,61, ,1 4,1, ,1,141, ,1,733, ,1,433, ,1,1497, ,1,86, ,1 6,181, ,1,197, ,1,984, ,1 7,8, ,1,174, ,1,3116, ,1 7,9, ,1,1817, ,1,33, ,1 8,94, ,1,1936, ,1,3396, ,1 1,7, ,1,6, ,1,343, ,1 11,33, ,1,196, ,1,3696, ,1 1,1,876 93,1,337, ,1,38, ,1 13,987, ,1,48, ,1,419, ,1 1,,8647 9,1,64, ,1,4189, ,1 17,43, ,1,88, ,1,436, ,1 19,77, ,1,98, ,1,447, ,1 1,6, ,1,3166, ,1,4736, ,1 3,198, ,1,336, ,1,4931, ,1,1, ,1,364, ,1,133, ,1 7,976, ,1,3778, ,1,34, ,1 3,63,8 9 3,1,44, ,1,7, ,1 33,478, ,1,441, ,1,78, ,1 36,3, ,1,4491, ,1,611,9678 3,1 39,776, ,1,473, ,1,649,9671 8,1 43,46, ,1,9, ,1,649, ,1 46,943, ,1,318, ,1,6749, ,1,877, ,1,6, ,1,711, ,1,8, ,1,94, ,1,781, ,1 9,496, ,1,674, ,1,761, ,1 64,, ,1,664, ,1,7849, ,1 69,186, ,1,6991, ,1,8146, ,1 74,461, ,1,737, ,1,843, ,1 8,37, ,1,7777, ,1,8769, ,1 8,97, ,1,8198, ,1,994, ,1 9,144, ,1,9639, ,1,943, ,1 98,7, ,1,91, ,1,9776, ,1 1,61, ,1,98, ,1 1,133, ,1 11,89, ,1,186, ,1 1,878, ,1 1,6, ,1,161, ,1 1,1668, ,1 18,63, ,1,1116, ,1 1,4, ,1 146,, ,1,11736, ,1 1,339,9 3 63,1 16,3,743 33,1,133, ,1 1,437, ,1 186,7,7 1 34,1,1961, ,1 1,316, ,1 1,4,418 3,1,13613, ,1 1,636, ,1 647,3 1,, ,1,1493, ,1 1,746, ,1,1, ,1 1,868,944 G-at_npsh_a_sc TECHNICAL APPENDIX 11

116 CHOOSING AND SIZING THE SURGE TANK The purpose of the surge tank is to limit the number of hourly starts of the pumps, placing part of its stock of water, which is maintained under pressure by the air above it, at the disposal of the system. The surge tank can be of the air cushion or diaphragm type. In the air cushion version there is no clear separation between air and water. Since part of the air tends to mix with water, it is necessary to restore it by means of air supply units or a compressor. In the diaphragm version, neither air supply units nor compressor are needed, as contact between air and water is prevented by a flexible diaphragm inside the tank. The following method, which is used to determine the volume of a surge tank, is valid both for horizontal and vertical surge tanks. When calculating the volume of the surge tank, it is generally sufficient to consider the first pump only. AIR-CUSHION SURGE TANK It is determined in relation to flow rate, pump pressure, and number of starts per hour allowed by the motor. 1, x Qp x (Pmax + 1) Va = 4 x Z x (Pmax - Pmin) where: Va = Total volume of the air-cushion surge tank in m 3 Qp = Average pump flow rate in m 3 /h Pmax = Maximum pressure setting (wcm) Pmin = Minimum pressure setting (wcm) Z = Maximum number of starts per hour allowed by the motor Warning! By pump flow rate we mean the average between the flow rate at the maximum pressure switch setting (Qmax) and the flow rate at the minimum pressure switch setting (Qmin), i.e.: Example: CN 3-16/ pump Pmax = 3 mca Pmin = mca Qp = 18 m 3 /h Z =3 Qp = Qmax + Qmin (m 3 /h) DIAPHRAGM TANK If you decide to use a diaphragm tank, the volume will be lower than that of the air-cushion tank. It can be calculated with the following formula: Vm = Qp x 1 4 x Z 1 - (Pmin - ) Pmax where: Vm = Total volume of the air-cushion surge tank in m 3 Qp = Average pump flow rate in m 3 /h Pmax = Maximum pressure setting (wcm) Pmin = Minimum pressure setting (wcm) Z = Maximum number of starts per hour allowed by the motor Example: CN 3-16/ pump Pmax = 3 mca Pmin = mca Qp = 18 m 3 /h Z =3 Vm = Qp x 1 =,4 m 3 4 x Z (Pmin - ) 1 - Pmax A -litre surge tank is therefore required. Approximate comparison between Lowara air-cushion tanks and diaphragm tanks, as regards some pressure switch setting values NOMINAL NOMINAL CAPACITY PRESSURE SWITCH PRESSURE SETTING SWITCH (bar) min/max SETTING CAPACITY OF AIR 1,/, /3,/3, 3/4 3,/4, 4/ 4,/, /6,/6, OF AIR CUSHION TANK1,/, /3,/3, 3/4 3,/4, 4/ 4,/, /6,/6, 6/7 TANK (litres) (litres) NOMINAL CAPACITY OF DIAPHRAGM TANK (litres) NOMINAL CAPACITY OF DIAPHRAGM VESSEL (litres) 1 N. ball types tanks/cylinder type tanks or 6 l Export tank or 1-litre tanks (Ispesl tested) table N ball type vessels/cylinder type vessels 1 or 6l Export tank or 1-litre vessels (ISPESL tested) s_swp-en_a_th tab Va = 1, x 18 x (3 + 1) =,788 m 4 x 3 x (3 - ) 3 A 7-litre surge tank is therefore required. TECHNICAL APPENDIX 116

117 TABLE OF FLOW RESISTANCE IN 1 m OF STRAIGHT CAST IRON PIPELINE (HAZEN-WILLIAMS FORMULA C=1) FLOW RATE NOMINAL DIAMETER in mm and INCHES m 3 /h l/min /" 3/4" 1" 1 1/4" 1 1/" 1/" 3" 4" " 6" 7" 8" 1" 1" 14" 16",6 1 v,94,3,34,1,13 hr 16 3,94 1,33,4,13 The hr values must be multiplied by:,9 1 v 1,4,8,1,31,.71 for galvanized or painted steel pipes hr 33,9 8,3,8,8,9.4 for stainless steel or copper pipes 1, v 1,89 1,6,68,41,7,17.47 for PVC or PE pipes hr 7,7 14,1 4,79 1,44,49,16 1, v,36 1,33,8,,33,1 hr 87, 1, 7,4,18,73, 1,8 3 v,83 1,9 1,,6,4, hr 1 3,1 1,1 3, 1,3,3,1 3 v 3,3 1,86 1,19,73,46,3 hr 16 4, 13, 4,6 1,37,46,4 4 v,1 1,36,83,3,34, hr 1, 17,3,19 1,7,9,16 3 v,6 1,7 1,4,66,4, hr 77,4 6,1 7,8,6,89, 3,6 6 v 3,18,4 1,4,8,1,3 hr 18 36,6 11, 3,71 1,,3 4, 7 v 3,7,38 1,4,93,9,3 hr ,7 14,6 4,93 1,66,46 4,8 8 v 4,,7 1,66 1,6,68,4 hr 18 6,3 18,7 6,3,13,9, v v 3,6 3,4 1,87,7 1,19 1,33,76,8,4,,3,33 hr hr 77, 94,1 3,3 8,3 7,8 9,4,6 3,,74,9,7,33 7, v v 4, 3,11,9 1,99 1,66 1,7 1,6,7,63,,41,3 hr hr 14 9,9 4,8, 14,4 6,8 4,86 1,9 1,36,69,49,3 1, 17 v 3,63,3 1,49,88,8,37 hr 79,7 6,9 9,7,3,9,31 1 v 4,1,6 1,7 1,1,66,4 hr 1 34,4 11,6 3,3 1,18, v v,18 3,98 3,3,,1 1,1 1,6 1,,83,64,3,41,34 hr hr 14 7,8, 4,6 17, 6,8 4,89,49 1,78,84,6,8, v v v v,31 6,63,1,94 3,4 4, 3, 3,,1,1 1,99,3 1,33 1,66 1,7 1,49,8 1,6,8,9,4,68,7,66,38,47,4,49 hr hr hr hr , ,8 63, 4,7 3,8 11,66 17,6 8,98 11,9 4,4 6,41 3,3 4,3 1,43,16 1, 1,36,48,73,4,6,,3,, v v 6,79 7,64 4, 4,,6,99 1,7 1,91 1,9 1,,7,8,,6 hr hr ,,3 1,3 19,,16 6,41 1,74,16,7,89,34,4 6 1 v,3 3,3,1 1,36,94,69,3 hr 63, 3,1 7,79,63 1,8,1,7 7 1 v 6,8 4,1,6 1,7 1,18,87,66 hr 96, 34,9 11,8 3,97 1,63,77, v v 7,4 8,79 4,98,81 3,18 3,7,4,38 1,4 1,6 1,4 1,1,8,93 hr hr ,9 6,1 16, 1,9,7 7,4,9 3, 1,8 1,44,6,7 1 v 6,63 4,,7 1,89 1,39 1,6,68 hr 83,3 8,1 9,48 3,9 1,84,96,3 1 v 8,9,31 3,4,36 1,73 1,33,8 hr 16 4, 14,3,89,78 1,4, v 6,37 4,8,83,8 1,9 1,,71 hr 9,,1 8,6 3,9,3,69,8 1 3 v 7,43 4,76 3,3,43 1,86 1,19,83 hr 79,1 6,7 11,,18,71,91, v 8,49,44 3,77,77,1 1,36,94 hr 11 34, 14,1 6,64 3,46 1,17,48 3 v 6,79 4,7 3,47,6 1,7 1,18 hr 1,6 1, 1,,3 1,77, v 8,1,66 4,16 3,18,4 1,4 hr 7,3 9,8 14,1 7,33,47 1, 4 7 v 6,61 4,8 3,7,38 1,6 1,1 hr 39,6 18,7 9,7 3,9 1,3, v 7,, 4,,7 1,89 1,39 hr,7 3,9 1,49 4,1 1,73,8 4 9 v 8,49 6,4 4,78 3,6,1 1,6 1,19 hr 63, 9,8 1,,4,16 1,,3 6 1 G-at-pct_a_th v 6,93,31 3,4,36 1,73 1,33 hr 36, 18,9 6,36,6 1,4,6 hr = flow resistance for 1m of straight pipeline (m) V = water speed (m/s) TECHNICAL APPENDIX 117

118 FLOW RESISTANCE TABLE OF FLOW RESISTANCE IN BENDS, VALVES AND GATES The flow resistance is calculated using the equivalent pipeline length method according to the table below: ACCESSORY TYPE Equivalent pipeline length (m) 4 bend,,,4,4,6,6,9 1,1 1, 1,9,4,8 9 bend,4,6,9 1,1 1,3 1,,1,6 3, 3,9 4,7,8 9 smooth bend,4,4,4,6,9 1,1 1,3 1,7 1,9,8 3,4 3,9 Union tee or cross 1,1 1,3 1,7,1,6 3, 4,3,3 6,4 7, 1,7 1,8 Gate - - -,,,,4,4,6,9 1,1 1,3 Non return valve 1,1 1, 1,9,4 3, 3,4 4,7,9 7,4 9,6 11,8 13,9 The table is valid for the Hazen Williams coefficient C = 1 (cast iron pipework). For steel pipework, multiply the values by For stainless steel, copper and coated cast iron pipework, multiply the values by 1.8. When the equivalent pipeline length has been determined, the flow resistance is obtained from the table of flow resistance. The values given are guideline values which are bound to vary slightly according to the model, especially for gate valves and non-return valves, for which it is a good idea to check the values supplied by the manufacturers. DN G-a-pcv_a_th TECHNICAL APPENDIX 118

119 Air supply unit The most commonly used air supply unit model is the depression type, which uses the depression produced by the pump suction. fig The air supply unit consists of a body made of plastic material suitable for foodstuffs (1), a spherical rubber shutter (), an upper brass union (3) with an air valve (4), a Venturi tube (), and a flexible pipe (6) to be connected to the pump intake. fig The air accumulated inside the body pushes the rubber ball () to the bottom, thus blocking the passage. At this point the valve closes and the rubber ball prevents the air accumulated inside the body of the air supply unit from reaching the pump intake. Air supply unit operation fig When the pump starts up, the intake pressure is lower than the pressure in the surge tank. This difference causes water to flow from the surge tank to the pump intake, through the air supply unit. fig When the pump stops the depression ceases and a flow of water is produced, which lifts the ball and pushes the air in the body of the supply unit into the tank. fig The flow of water that passes through the Venturi tube () generates a depression and allows the opening of the air valve (4). As a consequence, air enters the body of the supply unit. Air supply unit selection tank TANK TANK AVERAGE AVERAGE PRESSURE SETTING CAPACITY bar bar L L., 3. 3, 4.4,., 6. 6, 7. 7, 1 1 LOW 3 LOW 3 LOW LOW LOW LOW 4 6 LOW 3 4 LOW 4 6 g_air-en_a_th tab This cycle is repeated each time the pump starts up until the required quantity of air has accumulated. To ensure proper system operation, no check valve must be mounted between the pump delivery outlet and the surge tank, as it would impede the return flow of water through the pump. TECHNICAL APPENDIX 119

120 ASSESSMENT OF PROBABLE DEMAND (VALID IN U.K. ONLY) The method adopted is based on loading unit values as detailed in the Plumbing Engineering Design Guide published by the Institute of Plumbing. When designing a hot or cold water supply system an assessment must be made to obtain the maximum probable simultaneous demand. Depending on the type of services being provided it rarely occurs for all the appliances to be used at the same time therefore the design usually allows for a peak usage which is less than the maximum. Probable demand will depend on the type of building and its use, type of appliances installed and frequency of use. The simultaneous demand in most installations can be calculated with an adequate degree of accuracy using the loading unit concept. The usage patterns and types of appliances in different installations will vary greatly. Sports and Leisure centres for example are usually calculated directly by the flow rates of each appliance, without diversity factors. Each case will need to be looked at in its own right and assessed accordingly. Judgement of the designer must prevail. Loading unit values vary for each type of appliance. A loading unit has no precise value in terms of litres per second. See loading unit table below. By multiplying the total number of each appliance by the appropriate loading unit number and adding the resultant totals together, the recommended flow can be read from the chart. Loading unit table APPLIANCE Loading Recommended Unit Flow L/s LOADING UNITS 8 3 FLOW L/s WC 1,,1 Wash basin (hot & cold) 3,3 Sink (hot & cold) 6,4 Bath (hot & cold),6 Shower (hot & cold) 1,4 Washing machine,3 g_at_a_lu Working Example 1. A block of standard flats containing a total of 7 dwellings Each standard flat is assumed to have: 1 x Hand basin hot & cold = 3 L/U x 7 = 1 1 x WC cold only = 1. L/U x 7 = 1 1 x Shower hot & cold = 1 L/U x 7 = 7 1 x Sink hot & cold = 6 L/U x 7 = TECHNICAL APPENDIX Total Loading Unit =143 This figure can now be read from the chart opposite: total flow = 8. L/s 1 G_at_4a.4.3 1

121 ASSESSING HEAD REQUIREMENT (VALID IN U.K. ONLY) The head required in a boosted cold water system consists of three components, static head, residual pressure and system friction losses. The values of these three components are added together to give the total required head at the system flow rate. Static head (He): This is the difference between the break tank low water line and the highest discharge point in the building. If the height of the build is not known, then.8-3. metres per floor can be used to assess the building height. Residual pressure (Hr): This is the pressure required at the highest outlet device, normally metres. Note: some modern showers may require higher pressures. System friction losses (Hc): The total losses through pipework, pipework fittings, valves, PRVs and all other equipment fed through the pumpset must be added to find the total system losses. On conventional systems that do not include excessive runs of pipe or specialised components a rough guide would be to allow. metres friction loss for each metre of static head. G_at a Hc Hr He H Example: Static head (He): Building height four each = 11.m + Residual pressure (Hr): Pressure at highest outlet = m + Friction loses (Hc): 11. (static head) x. =.6m Total pump head required (H) = 31.76m (3.11 Bar) Pressure limitations The designer must ensure that adequate precautions are taken to ensure that the system is capable of withstanding the closed valve head produced by the pump set. In cases where closed valve pressures cannot be tolerated, pressure reducing valves should be fitted down stream of the booster set. PIPE SIZE SUCTION PIPE DELIVERY PIPE Velocity Pipework within the system should be sized to limit the velocity to the figures stated in table below. Higher velocities will lead to excessive noise, wear and higher running costs. m/s m/s Less than 8mm,46,91 to 1,7 1-1mm, 1, to 1, mm,76 1,68 and above,91 1,8 to,13 g_at_a_fs BOOSTER SIZING What information do we require to size a booster set? As a minimum we need to know: The total flow rate, or information to assess this. The total head at flow rate, or the height of building. If the pumps are to operate under positive head, or suction lift conditions. Where the set is to be sited, I.E. basement or roof. Preferred choice fixed of variable speed Additional information if available: How to split the duty for particular applications I.E. duty/standby or duty/assist. The size and material of the connecting pipework. Is a Jockey pump required. TECHNICAL APPENDIX 11

122 ACCESSORIES SORIES AIR SUPPLY UNITS FLOAT SWITCHES VALVES CYLINDER WATER TANK TECHNICAL APPENDIX NON-RETURN VALVES COUPLINGS PRESSURE TRANSMITTER 1

123 VOLUMETRIC CAPACITY ACITY Litres Cubic metres Cubic feet Cubic feet Imp. gal. US gal. per minute per hour per hour per minute per minute per minute l/min m 3 /h ft 3 /h ft 3 /min Imp. gal/min Us gal./min 1,,6,1189,33,,64 16,6667 1, 3,3147,886 3,666 4,49,4719,83 1,,167,138,147 8,3168 1,699 6, 1, 6,88 7,48 4,461,78 9,636,16 1, 1,9 3,784,71 8,8,1337,837 1, PRESSURE SURE AND AND HEAD HEAD Newton per kilo Pascal bar Pound force per metre millimetre of square metre square inch of water mercury N/m kpa bar psi m H O mm Hg 1,,1 1 x x x 1-4,7 1, 1,,1,14,1 7,6 1 x 1 1, 1, 14,38 1,197 7, ,77 6,8948,689 1,,731 1, ,6 9,867,981 1,43 1, 73,61 133,3,1333,13,193,136 1, LENGTH millimetre centimetre metre inch foot yard VOLUME mm cm m in ft yd 1,,1,1,394,33,11 1, 1,,1,3937,38,19 1, 1, 1, 39,371 3,88 1,936,4,4,4 1,,833,78 34,8 3,48,348 1, 1,, ,4 91,44, , 3, 1, cubic metre litre millilitre imp. Gallon US gallon cubic foot m 3 litro ml imp. gal. US gal. ft 3 1, 1, 1 x , ,17 3,3147,1 1, 1,,,64,33 1 x 1-6,1 1,. x x x 1 -,4 4, ,87 1, 1,9,16,38 3, ,41,837 1,,1337,83 8, ,8466 6,88 7,48 1, G-at_pp-en_a_sc TECHNICAL APPENDIX 13

124 FURTHER PRODUCT SELECTION AND DOCUMENTATION TION Xylect Xylect is pump solution selection software with an extensive online database of product information across the entire Lowara, and Vogel range of pumps and related products, with multiple search options and helpful project management facilities. The system holds up-to-date product information on thousands of products and accessories. The possibility to search by applications and the detailed information output given makes it easy to make the optimal selection without having detailed knowledge about the Lowara and Vogel products. The search can be made by: Application Product type Duty point TECHNICAL APPENDIX Xylect gives a detailed output: List with search results Performance curves (flow, head, power, efficiency, NPSH) Motor data Dimensional drawings Options Data sheet printouts Document downloads incl dxf files The search by application guides users not familiar with the product range to the right choice. 14

125 FURTHER PRODUCT SELECTION AND DOCUMENTATION TION Xylect The detailed output makes it easy to select the optimal pump from the given alternatives. The best way to work with Xylect is to create a personal account. This makes it possible to: Set own standard units Create and save projects Share projects with other Xylect users Every user have a My Xylect space, where all projects are saved. For more information about Xylect please contact our sales network or visit Dimensional drawings appear on the screen and can be downloaded in dxf format. TECHNICAL APPENDIX 1