Pressure Independent Control Valve. Technical manual
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1 Pressure Independent ontrol Valve Technical manual STE0101 R6-12/09/2013
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3 Table of contents Introduction...1 Advantages and user-friendliness...1 Applications examples...2 Technical specifications...3 ynamic characteristic curves...8 Start-up charts...9 Flow pre-setting...12 Flow setting accuracy...13 Flow control and characteristic curves...14 ontrol characteristic curves...16 Installation and maintenance...21 Installation and maintenance - 91 / 91X / Installation and maintenance Installation and maintenance Installation and maintenance - 94F...26 Thermo-electric actuators...27 Electromotive actuators...33 Rotary actuators...37 SMART actuator...40 Table selection for actuators / 91-1 dimensional data X dimensional data X/2 dimensional data X/3 dimensional data X3S dimensional data dimensional data dimensional data F dimensional data...48 shipping weight information...48
4 Introduction The Pressure Independent ontrol Valve PIV is a combined constant flow limiter and full stroke, full authority equal percentage temperature control valve. The is suitable for use in variable and constant temperature systems and may be used as constant flow limiter in constant volume systems (without an actuator head) or as a true PIV in variable volume systems. 1 2 Operating principle valve is made by three main parts: 1. differential pressure regulator 2. regulating valve for flow adjustment 3. flow pre-setting knob 1. ifferential pressure regulator The differential pressure regulator is the heart of the pressure independent control valve. By keeping a constant differential pressure across the valve seats constant flow and full authority temperature control can be achieved. Incoming pressure P1 is transmitted to the top face of the diaphragm, outgoing pressure P3 is transmitted to the underside of this same diaphragm. A constant effective differential pressure is maintained between P2 and P3. As P1 increases relative to P3 it acts on the diaphragm closing the shutter (A) against a seat (B) thereby lowering the effective differential pressure. As P1 decreases relative to P3 the diaphragm acts to open the shutter (A) from the seat (B) thus increasing the effective differential pressure. The diaphragm acts against a spring in order to balance the pressure control and stop the diaphragm oscillating. 2. Regulation valve Water flow through a valve varies as a function of the area of passage and the pressure differential across that valve. ue to the incorporation of the differential pressure regulator the differential across the valve seats P2 P3 is constant meaning that flow is now only a function of area of passage. Setting any flow rate value and maintaining it stable is also possible. The regulation valve presents an equal percentage characteristic. P1 A B P2 P3 3 Functional schematic 3. Adjustment knob The maximum value of the flow can be preset, choking the outlet section of the control valve, using the graduated adjustment knob. The percentage value, indicated on the scale, matches the maximum flow rate percentage. This value can be changed turning the adjustment knob until it reaches the selected position (matching the percentage indicated on the scale). A locking mechanism avoids the valve set values from being changed inadvertently. Advantages and user-friendliness 1. Advantages is a full authority temperature control valve. This means that each individual terminal receives on the flow required even in part load conditions.. The regulator corrects any differential pressure variation. This leads to a considerable reduction in temperature variations and adjustment movements and to the extension of the life of the moving devices connected to it. valves offer a remarkable adjustment flexibility. They can be accurately set to a specific flow rate value and they allow precise modulating control. The valves always guarantee a suitable flow rate, therefore avoiding too high energy consumption. Since valve performs the functions of two valves (balancing and adjustment), the installation costs are considerably reduced. The automatic flow rate limitation eliminates system commissioning costs. Since commissioning is very easy to perform, design flow rates can be modified at any time and at low costs. Since it is not necessary to commission the valve after its installation, the valve can work immediately after it has been assembled, for example, on the floors where works are already finished. 2. User-friendliness In order to adjust the flow rate, just set the selected value using the adjustment knob. Since flow rate is the only parameter to be considered, choosing the suitable valve is easy and fast. valve maximum adjustment matches the maximum flow rate allowed by the pipe size, on the basis of the values established by international standards. Setting ratio calculation is not necessary. Valve authority calculation is not required. Specific devices or knowledge are not necessary. ompact design that allows installing the valve also in small spaces such as fan-coils or narrow supply spaces. The special adjustment knob allows the flow rate to be set without disassembling the actuator. 1
5 Applications examples 1. Systems with variable thermal power The use of a motorised control valve that automatically limits the flow rate, ensures stable energy supply, independently from the available pressures and, at the same time, thanks to the possibility of controlling the flow rate regulator, it allows effective adjustment of ambient temperature. PIV is used as a constant flow limiter and control valve. IV TP Flushing by-pass TP V TP IV 2. Systems with constant thermal power If the valve is used to adjust fan-coil flow, it ensures the required flow rate to the equipment and it favours the hydraulic balance of the system. The exchanger always works in the best conditions possible with any differential pressure and the system is split into hydraulically separated areas. PIV is used as a constant flow limiter. IV TP V TP TP IV 3. Single-pipe heating systems An automatic valve placed on the system return line ensures a stable flow rate on the main branches at any thermostatic valve opening, thus reducing the possible sudden changes due to pressure variations in the system. PIV is used as a constant flow limiter. 2
6 Technical specifications 91 Material list A Regulating valve (A) artridge (B) Presetting () Body () Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W602N B Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE VL ½ 91L ½ 91H ½ 91L ¾ 91H ¾ Flow rate max. 150 l/h 0,042 l/s 600 l/h 0,167 l/s 780 l/h 0,217 l/s 1000 l/h 0,278 l/s 1500 l/h 0,417 l/s Start-up max. 20 kpa 0,20 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 30 kpa 0,30 bar 35 kpa 0,35 bar onnections Rp ½" F Rp ½" F Rp ½" F Rp ¾" F Rp ¾ F 91-1 Material list A Regulating valve (A) artridge (B) Presetting () Body () Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W602N B Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE VL1 ½ 91L1 ½ 91H1 ½ 91L1 ¾ 91H1 ¾ Flow rate max. 150 l/h 0,042 l/s 600 l/h 0,167 l/s 780 l/h 0,217 l/s 1000 l/h 0,278 l/s 1500 l/h 0,417 l/s Start-up max. 20 kpa 0,20 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 30 kpa 0,30 bar 35 kpa 0,35 bar onnections Rp ½" F Rp ½" F Rp ½" F Rp ¾" F Rp ¾ F 3
7 91X Material list Regulating valve artridge Presetting Body Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W617N Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE XVL ½ 91XL ½ 91XH ½ Flow rate max. 150 l/h 0,042 l/s 600 l/h 0,167 l/s 900 l/h 0,250 l/s Start-up max. 20 kpa 0,20 bar 25 kpa 0,25 bar 30 kpa 0,30 bar onnections Rp ½" F Rp ½" F Rp ½" F 91X/2 Material list Regulating valve artridge Presetting Body Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W617N Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE XL/2 ¾ 91XH/2 ¾ Flow rate max. Start-up max. onnections 600 l/h 0,167 l/s 25 kpa 0,25 bar G ¾"M (flat face) EN l/h 0,250 l/s 25 kpa 0,25 bar G ¾"M (flat face) EN
8 91X/3 Material list Regulating valve artridge Presetting Body Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W617N Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE XVL/3 ½ x ½ 91XL/3 ½ x ½ 91XH/3 ½ x ½ Flow rate max. 150 l/h 0,042 l/s 600 l/h 0,167 l/s 900 l/h 0,250 l/s Start-up max. 20 kpa 0,20 bar 25 kpa 0,25 bar 30 kpa 0,30 bar onnections ½" F x ½" union M ½" F x ½" union M ½" F x ½" union M 91X3S Material list Regulating valve artridge Presetting Body Brass W614N Stainless steel 18/8 High resistance polymer - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Brass W617N Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 2,7 mm IE lass IV IE XVL3S ½ F x ¾ M 91XL3S ½ F x ¾ M 91XH3S ½ F x ¾ M Flow rate max. 150 l/h 0,042 l/s 600 l/h 0,167 l/s 900 l/h 0,250 l/s Start-up max. 20 kpa 0,20 bar 25 kpa 0,25 bar 30 kpa 0,30 bar onnections ½" F x ¾" M BS ½" F x ¾" M BS ½" F x ¾" M BS
9 93 Material list A Regulating valve (A) artridge (B) Presetting () Brass W614N Stainless steel 18/8 Brass W614N - EPM Stainless steel AISI 303 High resistance polymer Brass W614N Body () Brass W602N B Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 25 bar 6 mm IE lass IV IE L ¾ 93H ¾ 93L 1 93H 1 93L 1 1/4 93H 1 1/4 Flow rate max l/h 0,611 l/s 2700 l/h 0,750 l/s 2200 l/h 0,611 l/s 2700 l/h 0,750 l/s 2700 l/h 0,750 l/s 3000 l/h 0,833 l/s Start-up max. 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 35 kpa 0,35 bar onnections Rc ¾" union F Rc ¾ union F Rc 1 union F Rc 1 union F Rc 1 1/4 union F Rc 1 1/4 union F 83 Regulating valve (A) Material list Brass W602N Stainless steel 18/8 A artridge (B) High resistance polymer - EPM Stainless steel AISI 303 Presetting () Brass W602N Body () uctile Iron Gaskets EPM-x E B Additional manual shut-off device (E) Brass W614N ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 16 bar 90 >100 IE lass IV IE L 1 1/2" 83L 2" 83H 2" Flow rate max l/h 2,5 l/s l/h 3,33 l/s l/h 5,00 l/s Start-up max. 25 kpa 0,25 bar 30 kpa 0,30 bar 35 kpa 0,35 bar onnections Rc 1 1/2" union F Rc 2" union F Rc 2" union F 6
10 94F Material list A Regulating valve (A) Brass W602N Stainless steel 18/8 artridge (B) Brass W602N - EPM Stainless steel AISI 303 Presetting () High resistance polymer Brass W602N Body () uctile iron B Gaskets EPM-x ΔP max. Temperature Working pressure max. Stroke Rangeability Leakage 400 kpa / 4 bar kpa / 16 bar mm >100 IE lass IV IE F 2" 94F 2 1/2" 94F 3" 94F 4" 94F 5" 94F 6" Flow rate max l/h 5,56 l/s l/h 8,33 l/s l/h 11,11 l/s l/h 15,28 l/s l/h 22,22 l/s l/h 41,67 l/s Start-up max. 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 50 kpa 0,50 bar onnections Flanged 2" EN EN 558 (face to face) Flanged 2 1/2" EN EN 558 (face to face) Flanged 3" EN EN 558 (face to face) Flanged 4" EN EN 558 (face to face) Flanged 5" EN EN 558 (face to face) Flanged 6" EN EN 558 (face to face) 7
11 ynamic characteristic curves Q P1 P2 Q ONST Q=ONST HYSTERESIS START-UP PRESSURE P1 - P2 P1 - P2 Using a differential pressure gauge to measure the pressure drop the valve absorbs, allows to check whether the valve is in the operating range (and, therefore, whether the flow is constant) by simply verifying that the measured value P1 - P2 is higher than the start-up value. If the ΔP measured value is lower than the start-up value, then the valve works as a fixed orifice valve. Start-up value varies with flow setting of the valve, as shown by the example below: Flow rate Working range at 100% 100% % knob opening Working range at 15 kpa 30 kpa 400 kpa kpa start-up P1 - P2 When the valve is set at 100% of nominal (maximum) flow, the curve begins to remain constant at 30 kpa, therefore the working range of the valve is kpa; When the valve is set at of nominal flow, the curve begins to remain constant at 15 kpa, therefore the working range of the valve is kpa. 8
12 The following charts show how start-up pressure changes for each models Start-up [kpa] Valve model 91VL 1/2" l/h 91VL1 1/2" l/h 91VLX 1/2" l/h 91VLX/3 1/2" l/h 91VLX3S 1/2" l/h 5 0 0% 100% Manual flow setting [%] Start-up [kpa] Valve model 91L 1/2" l/h 91L1 1/2" l/h 91LX 1/2" l/h 91LX/2 1/2" l/h 91LX/3 1/2" l/h 91LX3S 1/2" l/h 5 0 0% 100% Manual flow setting [%] Start-up [kpa] Valve model 91H 1/2" l/h 91H1 1/2" l/h % 100% Manual flow setting [%] 9
13 Start-up [kpa] Valve model 91L 3/4" l/h 91L1 3/4" l/h % 100% Manual flow setting [%] Start-up [kpa] Valve model 91H 3/4" l/h 91H1 3/4" l/h % 100% Manual flow setting [%] Start-up [kpa] Valve model 93L 3/4" l/h 93L 1" l/h % 100% Manual flow setting [%] 10
14 Start-up [kpa] Valve model 93H 3/4" l/h 93H 1" l/h 93L 1 1/4" l/h % 100% Manual flow setting [%] Start-up [kpa] Valve model 93H 1 1/4" l/h % 100% Manual flow setting [%] Start-up [kpa] Valve model 83H 2" l/h % 100% Manual flow setting [%] 11
15 Flow pre-setting VL-91VL1 ½" 91L-91L1 ½" 91H-91H1 ½" 91L-91L1 ¾" 91H-91H1 ¾" Presetting % Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Flow pre-setting 91X - 91X/2-91X/3-91X3S 150 l/h 600 l/h 900 l/h Presetting % Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s , , , , , , , , , , , , , , , , , , , , , , , , , , , ,025 Flow pre-setting 93 93L ¾" 93H ¾" 93L 1" 93H 1" 93L 1 1/4" 93H 1 1/4" Presetting % Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,083 12
16 Flow pre-setting 83 83L 1 1/2"" 83L 2" 83H 2" Presetting % Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s , , , , , , , , , , , , , , , , , , , , , , , , Flow pre-setting 94F 94F 2" 94F 2 1/2" 94F 3" 94F 4" 94F 5" 94F 6" Presetting % Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s Flow rate l/h l/s , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,167 Flow setting accuracy Max flow deviation at different settings Ԑ [± %] ± 20 ± 10 0% 100% 13
17 Flow control and characteristic curves The type of characteristic of the control valve (ON/OFF, linear, equipercentage) should be chosen according to the heat exchanger and to the type of control to be performed on the system. For ON/OFF control, a valve with ON/OFF curve will be sufficient, while a modulating control requires a linear or equal percentage characteristic. The following graphs show the optimal characteristic curve for the remote control of a heating / cooling system (A), the typical curve of the heat exchangers normally used in thermohydraulic systems (B), the typical curves of the control valves of these systems () and, finally, the resulting curves (), obtained joining the curve (B) with the different valve curves. As showed, the curve (3), obtained combining an equal percentage valve with a heat exchanger, corresponds to the optimal control curve (A). (A) Optimal control characteristic of any heating / cooling system (B) Typical characteristic curve of a generic heat exchanger (thermal output / flow rate) 100% 100% Thermal power Thermal power 100% signal 100% flow rate (1) ON/OFF valve characteristic curve (2) Linear valve characteristic curve (3) Equal percentage control valve characteristic curve 100% 100% 100% Flow rate Flow rate Flow rate 100% 100% 100% stroke stroke stroke (1) ON/OFF valve + heat exchanger system resulting graph (2) Linear valve + heat exchanger system resulting graph (3) Equal percentage valve + heat exchanger system resulting graph 100% 100% 100% Thermal power Thermal power Thermal power Modulating regulation impossible Modulating regulation acceptable but not linear Linear modulating regulation 100% 100% 100% Stroke (control signal) Stroke (control signal) Stroke (control signal) 14
18 As an example, a control valve with equal percentage characteristic can be considered in figure 1. Should a reduction down to of thermal power be required, control signal will simply drive the valve actuator to of its stroke, thus reducing the valve flow rate down to, see figure 2. Flow Flowmax 100% Fig. 1 Fig. 2 Flow 100% Flowmax 100% ontrol valve lift 100% ΔP Signal from thermostat or BMS If a control signal of resulted in a reduced flow of, then the fan coil shown on figure 3 will still deliver of maximum thermal power, which correspond to desired reduced output. Thermal Power 100% Fig % Flow through fan coil Flow Flowmax 100% Fig. 4 Fig % Flow Flowmax 100% ontrol valve lift 100% ΔP Signal from thermostat or BMS On the other hand, if we consider to use an ON/OFF valve, as shown in figure 4, when driving the actuator down to, valve flow will be reduced down to 92%, as shown in figure 5; If the same fan coil is used, resulting thermal power can be immediately calculated, as shown in figure 6 and it equals to 98%, which correspond to almost no reduction of thermal power. If a reduction down to of thermal power must be achieved, then ON/OFF control valve of the example, should be driven down to less than of its travelling. Thermal Power 100% Fig % Flow through fan coil 15
19 ontrol characteristic curve A Operating on the position of the regulating valve control stem A will modify the valve Kv, hence the flow rate. The relation between Kv and stroke is shown in the graph below. Typical control valve characteristic curves K v % = K v /K vmax 100% ON-OFF ZONE Bad control characteristic Good control characteristic Execellent control characteristic theoretical equipercentage curve n(eq) = 3.9 MOULATING ZONE 0% 0% 100% Stroke % = H/H 0 ombining the valve characteristic with heat exchanger results in a linear control system. * ontrol curve characteristic may change according to valve version. H = current lift of the control valve; H varies from 0 to H 0 H 0 = maximum lift of the control valve; K v = valve flow factor at lift = H K vmax = valve flow factor at lift = H 0 In the next pages, control curves for each valve model are shown. All valves control characteristic have been tested and plotted according to VI/VE 2173 guidelines; all valves were driven by VA V actuator. 16
20 100% Kv/Kvmax 0% 0% 100% H/H0 Valve model 91VL 1/2" l/h 91VL1 1/2" l/h Presetting positions 100% Open 75% Open Open 25% Open 100% kv/kvmax 0% 0% 100% H/H0 Valve model 91L 1/2" l/h 91L1 1/2" l/h Presetting positions 100% Open 75% Open Open 25% Open 100% Kv/Kvmax Valve model 91H 1/2" l/h 91H1 1/2" l/h Presetting positions 100% Open 75% Open Open 0% 0% 100% H/H0 17
21 100% Kv/Kvmax Valve model 91L 3/4" l/h 91L1 3/4" l/h Presetting positions 100% Open 75% Open Open 0% 0% 100% H/H0 100% Kv/Kvmax Valve model 91H 3/4" l/h 91H1 3/4" l/h Presetting positions 100% Open 75% Open Open 0% 0% 100% H/H0 100% Kv/Kvmax Valve model 93L 3/4" l/h 93L 1" l/h Presetting positions 100% Open 75% Open Open 0% 0% 100% H/H0 18
22 100% Kv/Kvmax 0% 0% 100% H/H0 Valve model 93H 3/4" l/h 93H 1" l/h 93L 1 1/4" l/h Presetting positions 100% Open 75% Open Open 100% Kv/Kvmax Valve model 93H 1 1/4" l/h Presetting positions 100% Open 75% Open Open 0% 0% 100% H/H0 100% Kv/Kvmax Valve model 83H 1 1/2" l/h Presetting positions 100% Open 0% 0% 100% H/H0 19
23 100% Kv/Kvmax Valve model 83H 2" l/h Presetting positions 100% Open 0% 0% 100% H/H0 100% Kv/Kvmax Valve model 83H 2" l/h Presetting positions 100% Open 0% 0% 100% H/H0 20
24 Installation and maintenance Before filling the terminal unit system with water, make sure main pipeline has been flushed and most of dirt and debris have been flushed away. Always comply with local or applicable flushing, however, in order to get the longest life and the best performance from a PIV, Pettinaroli does not accept any liability for improper or wrong use of this product. Always protect the pressure regulator by using strainers upstream of the valve and, in any case, make sure water quality complies with EN8065 standards (Fe < 0.5 mg/kg and u < 0.1 mg/kg). Furthermore, maximum iron oxide in the water passing through control valve (PIV) should not exceed 25 mg/kg (25 ppm). To ensure the main pipework is cleaned appropriately, flushing by-passes should be used without flushing through the pressure regulator of the PIV thereby preventing debris that might clog the valve. Here is an example, explaining the safest installation arrangement and filling/flushing methods: Flushing of maine pipe line Reverse back flushing B A TERMINAL UNIT TERMINAL UNIT B A A: Bypass mode B: losed : losed : Open A: Bypass mode B: Open : Open : losed irect back flushing Ready for commissioning B A A A: Normal mode B: Open : Open : losed TERMINAL UNIT TERMINAL UNIT B A: Normal mode B: Open : losed : Open 21
25 Installation and maintenance - 91 / 91X / Use conditions The valve has to be mounted with the arrow in the direction of the flow. Mounting it in the wrong direction may damage the system and the valve itself. If flow reversal is possible, a non-return valve should be mounted. Minimum differential pressure above which the valve begins to exercise its regulating effect: 91VL ½ 91L ½ 91H ½ 91L ¾ 91H ¾ Start-up ΔP 20 kpa 0,20 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 30 kpa 0,30 bar 35 kpa 0,35 bar At 100% preset. See also pages Flow preset To set the selected flow, follow these steps: Lift the lock pin to unlock the selector Turn the selector to the target position Press the lock pin to lock the selector in the final position 3. Operating control It is necessary to be sure that the valve is actually working in the operating range. In order to verify it, just measure the differential pressure across the valve, as shown in the picture. If the measured differential pressure is higher than the start-up pressure, the valve is actually keeping the flow constant at the set value. This paragraph does not apply to 91X series. 4. Maintenance and cleaning uring valve cleaning operations, use a damp cloth. O NOT use any detergent or chemical product that may seriously damage or compromise the proper functioning and the reliability of the valve. 5. Actuator assembly The valve can be equipped with a series of thermal-electric or electro-mechanical actuators, according to the requirements of the system. Actuators come along with an adaptor for proper mounting on the valve and for proper functioning of the whole device
26 Installation and maintenance Use conditions The valve has to be mounted with the arrow in the direction of the flow. Mounting it in the wrong direction may damage the system and the valve itself. If flow reversal is possible, a non-return valve should be mounted. Minimum differential pressure above which the valve begins to exercise its regulating effect: 93L ¾ 93H ¾ 93L 1 93H 1 93L 1 1/4 93H 1 1/4 Start-up ΔP 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 25 kpa 0,25 bar 35 kpa 0,35 bar At 100% preset. See also pages Flow preset To set the selected flow, follow these steps: Lift the lock pin to unlock the selector Turn the selector to the target position Press the lock pin to lock the selector in the final position 3. Operating control It is necessary to be sure that the valve is actually working in the operating range. In order to verify it, just measure the differential pressure across the valve, as shown in the picture. If the measured differential pressure is higher than the start-up pressure, the valve is actually keeping the flow constant at the set value. 4. Maintenance and cleaning uring valve cleaning operations, use a damp cloth. O NOT use any detergent or chemical product that may seriously damage or compromise the proper functioning and the reliability of the valve. 5. artridge replacement and flushing If the cartridge ( ΔP regulator ) needs to be replaced or when flushing the pipework during pre-commissioning, follow instructions below Unscrew bottom cap With an allen key unscrew the ΔP regulator Pull the regulator, making sure to not damage the o-rings 23
27 Installation and maintenance Use conditions The valve has to be mounted with the arrow in the direction of the flow. Mounting it in the wrong direction may damage the system and the valve itself. If flow reversal is possible, a non-return valve should be mounted. Minimum differential pressure above which the valve begins to exercise its regulating effect: 83H 1 ½ 83L 2 83H 2 Start-up ΔP 25 kpa 0,25 bar 30 kpa 0,30 bar 35 kpa 0,35 bar At 100% preset. See also page Flow preset To set the selected flow, follow these steps: lose the valve Release locking device Set maximum flow rate Lock again and re-open the valve 3. Operating control It is necessary to be sure that the valve is actually working in the operating range. In order to verify it, just measure the differential pressure across the valve, as shown in the picture. If the measured differential pressure is higher than the start-up pressure, the valve is actually keeping the flow constant at the set value. 4. Maintenance and cleaning uring valve cleaning operations, use a damp cloth. O NOT use any detergent or chemical product that may seriously damage or compromise the proper functioning and the reliability of the valve. 5. Flushing and shut off Flushing can be made trhough the valve by turning the valve 180. The differential pressure reducer is now inhibited and no flow limitation occour. Remember to restore the valve in its working position after flushing. The valve can be closed through the cartrige, should there be the need to do so, by using a 6 mm allen key. In normal working conditions this shut off device must be fully open. 24
28 6. Actuator assembly The valve can be equipped with electro-mechanical actuators, according to the requirements of the system. Actuators come along with an adaptor for proper mounting on the valve and for proper functioning of the whole device. The mounting pad is made according to ISO 9210 F04, however the valve comes with options to accommodate different actuators Flow presetting device (optional) Actuator adaptor (optional) Final assembly 25
29 Installation and maintenance - 94F 1. Use conditions The valve has to be mounted with the arrow in the direction of the flow. Mounting it in the wrong direction may damage the system and the valve itself. If flow reversal is possible, a non-return valve should be mounted. Minimum differential pressure above which the valve begins to exercise its regulating effect: 94F 2" 94F 2 1/2" 94F 3" 94F 4" 94F 5" 94F 6" Start-up ΔP 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 30 kpa 0,30 bar 50 kpa 0,50 bar 2. Flow preset The 94F is set up using the Smart Actuator: When first powered GO 0 is displayed on the L. Then wait for 0 to appear. Pressing the MOE button for 2 seconds or longer turns to setting mode. You can then choose the detail indication that s suitable for your on-site installations. When in set mode, press the mode button again and you can choose another set mode (set 1 - set 6). SET1 - Selecting Input / Indication Type SET2 - Selecting an input tool SET3 - Min. flow setting SET4 - Max. flow setting SET5 - hecking the settings / current values SET6 - Rotation angle compensation 1 isplay 2 Up button 3 Mode button 4 own button Operating control It is necessary to be sure that the valve is actually working in the operating range. In order to verify it, just measure the differential pressure across the valve, as shown in the picture. If the measured differential pressure is higher than the start-up pressure, the valve is actually keeping the flow constant at the set value. 4. Maintenance and cleaning uring valve cleaning operations, use a damp cloth. O NOT use any detergent or chemical product that may seriously damage or compromise the proper functioning and the reliability of the valve. 5. Manual override Untighten the actuator nut 1 2. Remove the actuator from the valve 3. lose the valve with a 8 mm wrench 26
30 Thermo-electric actuators for 91 series 1. Art. A4004 / Art. A V ON-OFF Supply voltage Absorbed power Max current Operating current Technical features 24 A /, + -, 0-60 Hz 1.8 W 250 ma max. 2 min. 75 ma Max fluid temperature Max ambient temperature 0-60 egree of protection IP 54 ( EN ) lass of protection II ( IE ) ( with cable connector only ) Relative umidity Actuating force 100 N ± 5 % Stroke max 80 %rh without condensation 4 mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves A4004 onnections 24 V A L1 L2 thermostat brown blue Overall dimensions imensions (mm) A4024 onnections 24 V A L1 L2 thermostat 24 V max. 3 A ohm resistive load 1 A inductive load Pump 14.5 brown blue black grey
31 2. Art. A2004 / Art. A V A ON-OFF Supply voltage Absorbed power Max current Operating current Technical features 230 V, 50/60 Hz 1.8 W 300 ma max. 200ms 8mA Max fluid temperature Max ambient temperature 0-60 egree of protection IP 54 ( EN ) lass of protection II ( IE ) ( with cable connector only ) Relative umidity Actuating force 100 N ± 5 % Stroke max 80 %rh without condensation 4 mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves A2004 onnections 230 V A L N thermostat brown blue Overall dimensions imensions (mm) A2024 onnections 230 V A L N thermostat 230 V max. 5 A ohm resistive load 1 A inductive load Pump 14.5 brown blue black grey
32 3. Art. AA V A proportional 0-10V Supply voltage Absorbed power Max current Operating voltage Technical features 24V A, - +, Hz 2 W < 250 ma max. 2 min. egree of protection IP 54 ( EN ) lass of protection III ( IE ) Relative umidity Actuating force 100 N ± 5 % Stroke 0 10 V 100 kω (10 kω optional) max 80 % rh without condensation Travelling time 120 s ( 4 mm stroke ) 4 mm (minus over-elevation) : max. 3.5 mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves onnections Path (mm) Valve travel=0 24 V V A A L1 L V 0-10 V GN Blue Red Black Valve adapter border Over-elevation range Active voltage control range Overall dimensions 29
33 Thermo-electric actuators for 93 series 1. Art. A V ON-OFF Supply voltage Absorbed power Max current Technical features 24 A, + -, 50/60 Hz 1.2 W Max fluid temperature Max ambient temperature 0-60 < 550 ma max. 100ms egree of protection IP 54 ( EN ) lass of protection II ( IE ) Actuating force 125 N ± 5 % Stroke Travelling time 6,5 mm 4,5 min Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves onnections stroke [mm] max 6 24 V A L1 L2 thermostat brown blue 1 0 Voltage on off make dead time voltage on break hold time time time Overall dimensions 61,0 mm 59,1 mm 8,3 mm 48,4 mm 44,1 mm 30
34 2. Art. A V A ON-OFF Supply voltage Absorbed power Max current Technical features 230V A, + -, 50/60 Hz 1.2 W Max fluid temperature Max ambient temperature 0-60 < 550 ma max. 100ms egree of protection IP 54 ( EN ) lass of protection II ( IE ) Actuating force 125 N ± 5 % Stroke Travelling time 6,5 mm 4,5 min Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves onnections stroke [mm] max V A L1 L2 thermostat brown blue 1 0 Voltage on off make dead time voltage on break hold time time time Overall dimensions 61,0 mm 59,1 mm 8,3 mm 48,4 mm 44,1 mm 31
35 3. Art. APR V A proportional 0-10V Technical features Supply voltage 24V A, - +, Hz Absorbed power 1.2 W Max current < 300 ma max. 2 min. Operating voltage 0 10 V 100 kω egree of protection IP 54 ( EN ) lass of protection III ( IE ) Actuating force 125 N ± 5 % Stroke 6,5 mm Travelling time 30 s/mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. haracteristic curves onnections Path (mm) 24V A L1 L V Valve travel=0 GN Blue Red Black Valve adapter border Over-elevation range Active voltage control range Overall dimensions 61,8 mm 59,9 mm 8,3 mm 63,5 mm 44,1 mm 32
36 Electromotive actuators 1. Art. VA V Vac floating model Supply voltage Absorbed power Start-up power Operating current Technical features Max fluid temperature Vac ± 15%, Hz 1,5 W / 2,5VA Max ambient temperature 0-50 egree of protection IP 43 Actuating force 120 N + - Max mechanical stroke Travelling time 6,3 mm 8 sec/mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. Operating status indication onnections OFF No power supply GREEN BLINKING Moving to position GREEN BLINKING End stroke confirmation GREEN STEAY ON End Stroke reached Overall dimensions 49 mm 79,5 mm 80 mm 33
37 2. Art. VA V Vac floating model Supply voltage Absorbed power Start-up power Operating current Technical features Max fluid temperature Vac ±, Hz 2,2 W / 6,5VA Max ambient temperature 0-50 egree of protection IP 43 Actuating force 120 N + - Max mechanical stroke Travelling time 6,3 mm 8 sec/mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. Operating status indication onnections OFF No power supply GREEN BLINKING Moving to position BLU BRN BLU BRN GREEN BLINKING End stroke confirmation GREEN STEAY ON End Stroke reached N L1 230VA N L1 230VA Overall dimensions 49 mm 79,5 mm 80 mm 34
38 3. Art. VA Vac/Vdc proportional model Supply voltage Absorbed power Start-up power Operating current Imput Impedance Technical features Max fluid temperature Vac/Vdc ± 15%, Hz 1,5 W / 2,5 VA Max ambient temperature 0-50 egree of protection IP 43 Voltage > 100 kω - urrent 500 Ω Actuating force 120 N + - Max mechanical stroke Travelling time 6,3 mm / 3,2 mm 8 sec/mm Mounting positions: any positions between vertical and horizontal. Upside down mounting ( actuator underneath the valve ) should be avoided. Operating status indication onnections OFF No power supply BLU GREEN BLINKING Moving to position GREEN BLINKING End stroke confirmation A GREEN STEAY ON Position reached (+) RE BLINKING ycle (-) RE STEAY ON 4/20 ma or 2/10 Vdc signal lost Overall dimensions 49 mm 79,5 mm 80 mm 35
39 ip switch settings for Proportional model only (VA7482) All the proportional models have 6 dip switches which allow the user to field configure the actuator. The actuator is factory released with all the dip switches in OFF position. ON OFF ON OFF ON V mA A LIN V 0...5V V RA Eq% ma V mA 1: ONTROL SIGNAL 2: RANGE 3: 4: ATION 5: URVE 6: SIGNAL TYPE ip Switch The dip switch allows the user to change the analogue input ranges. To switch from voltage analog input to current analog input the dip switch 6 has to be set accordingly. ip Switch4 The dip switch 4 allows the user to change the action of the actuator in relation of the analog input. The dip switch 4 OFF (irect Acting A) When the signal increases the actuator stem extends. The dip switch 4 ON (Reversing Acting RA) When the signal increases the actuator stem retracts. ip Switch 5 The dip switch 5 allows the user to change the control characteristic of the actuator in order to obtain a combination of valve and actuator linear or almost equal percentage. The dip switch 5 OFF (Linear) The dip switch 5 ON (almost EqualPercentage) 36
40 Rotary actuators for 83 series 1. SM16 24V 3 point floating control signal Operating torque Technical features 16Nm Running time 80s - 90 Supply Voltage onsumption imension ontrol Signal A 24 / 24-50/60Hz 3.9 W - Stand-by 0.4 W 6.5 VA Total rotation 0~90º Angle limitation Life cycle Protection lass IP protection class Temperature range Humidity range Stock temperature ertificate 2 point and 3point 5~85º (5º increment) 60,000 cycle II IP54-20~+50º 5~95%RH -40~+70º E Overall dimensions onnections ON / OFF FLOATING S1 S ~ A 24 V ~ V - + N L1 A 230 V N L S1 ON OFF End of stroke 185 a b 37
41 1. SM16 230V 3 point floating control signal Technical features Operating torque 16Nm Running time 80s - 90 Supply Voltage A 220/230-50/60Hz onsumption 4.8 W - Stand-by 1.2 W imension 6.5 VA ontrol Signal 2 point and 3point Total rotation 0~90º Angle limitation 5~85º (5º increment) Life cycle 60,000 cycle Protection lass II IP protection class IP54 Temperature range -20~+50º Humidity range 5~95%RH Stock temperature -40~+70º ertificate E Overall dimensions onnections ON / OFF FLOATING S1 S ~ A 24 V ~ V - + N L1 A 230 V N L S1 ON OFF End of stroke 185 a b 38
42 1. SM16 24V 3 point floating control signal Technical features Operating torque 16Nm Running time 80s - 90 Supply Voltage A/ 24V - 50/60Hz onsumption 4.8 W - Stand-by 1.2 W imension 6.5 VA ontrol Signal 0(2)-10 V 0(4)-20 ma Total rotation 0~90º Angle limitation 5~85º (5º increment) Life cycle 60,000 cycle Protection lass II IP protection class IP54 Temperature range -20~+50º Humidity range 5~95%RH Stock temperature -40~+70º ertificate E Overall dimensions onnections VA/ + ~ Master/sub-control ~ 24 VA/ 0(2)...10V 24 VA/ from control + ~ 185 Selection of rotating direction 39
43 SMART actuators for 94F series Flow rate can be easily set from the on-board user interface. ompatible with most used control signals: Analogue ( current or voltage control ) PWM ON/OFF 4 20 ma position feedback signal as default option, for a total remote management. Manual override available. Operating duration 170 sec. ( Full Open <-> Full losed ) Technical features Emergency operation ontrol input Easy removable nut PI ontrol ( 2-10V : installed on external cable of 500Ω resistor ) 4 20mA ( installed on external cable of 500Ω resistor) ON/OFF ontrol mode ( e.g. Thermostat ) PWM ontrol ( 0.1 ~ 5 sec/20ms or 25 sec/100ms depending on switch setting ) ommon switch NPN transistor, SR, triac or dry contact ( max. current 50mA ) Torque 5 Nm Position feedback 4-20mA or 2-10V ( installed on external cable of 500Ω resistor ) Ambient temp. -20 ~ 65 Wire over material Protection class 18AWG Aluminium + Plastic II - IP54 Overall dimensions Valve wiring
44 Table selection for actuators 91 Series 91X Series 93 Series 83 Series TYPE OF ONTROL SIGNAL ON/OFF ONTROL FLOATING ONTROL PROPORTIONAL ONTROL ( 0-10 V ) 230V 24V 230V 24V 230V 24V Thermo-electric Electromotive Thermo-electric Electromotive Thermo-electric Electromotive Thermo-electric Electromotive Thermo-electric Electromotive Thermo-electric Electromotive A2004 VA7481 3,2 mm + 0A7010 A4004 VA7481 3,2 mm + 0A VA7481 3,2 mm + 0A VA7481 3,2 mm + 0A AA5030 VA7482 3,2 mm + 0A7010 A2004 VA7481 3,2 mm + 0A7010 A4004 VA7481 3,2 mm + 0A VA7481 3,2 mm + 0A VA7481 3,2 mm + 0A AA5030 VA7482 3,2 mm + 0A7010 A20265 VA7481 6,3 mm + 0A748X A40625 VA7481 6,3 mm + 0A748X --- VA7481 6,3 mm + 0A748X --- VA7481 6,3 mm + 0A748X APR4062 VA7482 6,3 mm + 0A748X --- SM16 230V --- SM16 24V --- SM16 230V --- SM16 24V --- SM16 230V --- SM16 24V 41
45 91 dimensional data Manual valve Art. A (mm) B (mm) (mm) (mm) E (mm) 91VL ½" L ½" H ½" L ¾" H ¾" Valve with thermo-electric actuator Art. A (mm) B (mm) (mm) (mm) E (mm) 91VL ½" L ½" H ½" L ¾" H ¾" Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) E (mm) 91VL ½" L ½" H ½" L ¾" H ¾" dimensional data Manual valve Art. A (mm) B (mm) (mm) (mm) 91VL1 ½" L1 ½" H1 ½" L1 ¾" H1 ¾"
46 Valve with thermo-electric actuator Art. A (mm) B (mm) (mm) (mm) E (mm) 91VL1 ½" L1 ½" H1 ½" L1 ¾" H1 ¾" Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) E (mm) 91VL1 ½" L1 ½" H1 ½" L1 ¾" H1 ¾" X dimensional data A Manual valve Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XVL ½" XL ½" XH ½" E A Valve with thermo-electric actuator Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XVL ½" XL ½" XH ½" E 43
47 A Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XVL ½" XL ½" XH ½" E 91X/2 dimensional data A B Manual valve Art. A (mm) B (mm) (mm) (mm) E (mm) 91XL/2 ¾" XH/2 ¾" E A Valve with thermo-electric actuator B Art. A (mm) B (mm) (mm) (mm) E (mm) 91XL/2 ¾" XH/2 ¾" E A Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XL/2 ¾" XH/2 ¾" E 44
48 91X/3 dimensional data A Manual valve B Art. A (mm) B (mm) (mm) (mm) 91XVL/3 ½" XL/3 ½" XH/3 ½" A Valve with thermo-electric actuator Art. A (mm) B (mm) (mm) (mm) B 91XVL/3 ½" XL/3 ½" XH/3 ½" A Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) B 91XVL/3 ½" XL/3 ½" XH/3 ½" X3S dimensional data A Manual valve B A Art. A (mm) B (mm) (mm) (mm) E (mm) 91XVL3S ½" XL3S ½" XH3S ½" B E E 45
49 A Valve with thermo-electric actuator Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XVL3S ½" XL3S ½" XH3S ½" E A Valve with electromotive actuator Art. A (mm) B (mm) (mm) (mm) E (mm) B 91XVL3S ½" XL3S ½" XH3S ½" E 93 dimensional data Manual valve A Art. A (mm) B (mm) (mm) (mm) 93L ¾" B 93H ¾" L 1" H 1" L 1 1/4" E E 93H 1 1/4" Valve with thermo-electric actuator A Art. A (mm) B (mm) (mm) (mm) 93L ¾" 79, B 93H ¾" 79, L 1" 79, H 1" 79, L 1 1/4" 79, E E 93H 1 1/4" 79,
50 Valve with electromotive actuator A Art. A (mm) B (mm) (mm) (mm) 93L ¾" B 93H ¾" L 1" E E 93H 1" L 1 1/4" H 1 1/4" dimensional data A E E B Manual valve Art. A (mm) B (mm) (mm) (mm) E (mm) 83H 1 1/2" L 2" H 2" F B Rotary actuator E E Art. A (mm) B* (mm) (mm) (mm) E (mm) F (mm) 83H 1 1/2" * ,5 83L 2" * ,5 83H 2" * ,5 * With presetting B = 229 mm A 47
51 94F dimensional data L L H2 d K N N H1 Valve with actuator 24V Art. H1 (mm) H2 (mm) L* (mm) N (mm) (mm) K (mm) d (mm) (mm) 94F 2" F 2 1/2" F 3" F 4" F 5" F 6" * EN558 ( IE Table 1 ) shipping weight information Art. Weight (Kg) 91VL ½" 0,88 91L ½" 0,88 91H ½" 0,88 91L ¾" 0,95 91H ¾" 0,95 91VL1 ½" 0,84 91L1 ½" 0,84 91H1 ½" 0,84 91L1 ¾" 0,91 91H1 ¾" 0,91 91XVL ½" 0,77 91XL ½" 0,77 Art. Weight (Kg) 91XH ½" 0,77 91XL/2 ¾" 0,76 91XH/2 ¾" 0,76 91XVL/3 ½" 0,84 91XL/3 ½" 0,84 91XH/3 ½" 0,84 91XVL3S ½" 0,77 91XL3S ½" 0,77 91XH3S ½" 0,77 93L ¾" 2,30 93H ¾" 2,30 93L 1" 2,40 Art. Weight (Kg) 93H 1" 2,40 93L 1 1/4" 2,60 93H 1 1/4" 2,60 83H 1 1/2" 15,30 83L 2" 15,50 83H 2" 15,50 94F 2" 38,00 94F 2 1/2" 48,00 94F 3" 60,00 94F 4" 102,00 94F 5" 126,00 94F 6" 162,00 Fratelli Pettinaroli Spa reserve the right to change the described products and the relative technical data at any time and without prior notice. Please check the latest update on our web site Fratelli Pettinaroli Spa has aimed to ensure that all information within this document is accurate. However, mistakes can happen and the company does not accept any liability for incorrect information published within the document. Should you have any queries, please contact info@pettinaroli.com 48
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54 Fratelli Pettinaroli Spa Via Pianelli, San Maurizio d Opaglio (NO) - Italy Tel Fax info@pettinaroli.com -
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