GRUNDFOS PRODUCT GUIDE DMH. Dosing pumps

Transcription

1 GRUNDFOS PRODUCT GUIDE Dosing pumps

2 Contents Features and benefits 3 Performance range 4 Pump selection options 36 Pumped liquids List of pumped liquids 39 Identification Type key 7 Functions Functional overview 8 Capacity control 8 B 8 AR 9 Control panel 0 Connectors 0 Construction General description Technical data Dimensions, Dimensions, US Connections for suction and discharge 27 pumps supplied from the USA 28 Motors TEFC AC 725 RPM 28 Servo motors 28 Performance data, Performance data, Suction lift, Suction lift, Weights, Weights, Sound pressure 34 Accuracy 34 Permissible temperature of dosing liquid 34 AR control unit, technical data 34 Lubricants 35 2

3 Features and benefits Hydraulic diaphragm dosing from 0.50 to 2 x 278 GPH. The preferred choice for demanding applications The Grundfos range is a series of hydraulic pumps for applications demanding a high-quality pump. With its high accuracy and modern interface possibilities, the is ideal for many applications in water treatment and industrial processing. Fig. Fig duplex version TM TM Prepared for performance and safety in extreme situations The 250 series of pumps is available with PVC, PVDF, polypropylene, stainless steel and Hastelloy C wetted components. For high-pressure requirements, select from the series of stainless steel or Hastelloy C 280 pumps, rated up to 2900 PSI. All models are fitted with a PTFE diaphragm, with the AMS diaphragm protection system and internal relief valve for pump protection. Get the pump configuration you need Control the capacity manually by adjusting the stroke length from 0 to 00 %, with a +/- % repeatable accuracy. Additional options: Duplex version offers twice the capacity of a simplex pump. It is also used for blending applications. Electric 4-20 ma servomotor (electric actuator) or pneumatic stroke length control Variable speed drive controller Integrated stroke sensor and electronic counter Leak detection with double diaphragm. Typical applications: Municipal and industrial water treatment Wastewater treatment Chemical industry Boiler feed Petroleum industry Filtration systems ph control Demineralizers Pulp & paper Textile Food & beverage. Fig with stroke frequency controller, leak detector, and remote stroke length control TM API 675 models 250 and 280 series pumps are available in API 675 compatible versions. This is commonly used in petroleum, chemical refineries, and transmission pipeline applications. Contact Grundfos for available models. 3

4 Performance range 0.50 to 278 GPH p [psi] Hz Q [US GPH] TM Fig. 4 Performance range,, 0.50 to 278 GPH 4

5 Performance range Performance range by max. pressure Model Size Max. capacity [GPH] Max. pressure [PSI] stokes/min Model Note: Double GPH with duplex versions. Performance range by model 25 Size Max. capacity [GPH] Max. pressure [PSI] stokes/min Size Max. capacity [GPH] Max. pressure [PSI] str./min

6 Performance range 252 Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Note: Double GPH with duplex versions. Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min Size Max. capacity [GPH] Max. pressure [PSI] str./min

7 Identification Type key Example: 43-0 B PVC /V /G -X -F A7A7 X E3 Type range Pump variant E0 PTC motor for frequency control E3 API approval Pump size Mains plug Control variant X No plug B USA, Canada F Schuko B Standard I Australia, New Zealand, Taiwan E Switzerland AR* Analog/pulse control AT4 AT5 Connection, suction/discharge Servomotor, x 5 V, 50/60 Hz supply, C2 Pipe 8/0 mm 4-20 ma control C4 Pipe 20/25 mm Servomotor, 24 V, 50/60 Hz supply, 4-20 ma control B6 Pipe 4/6 mm AT7 Dosing head variant Servomotor, x 5 V, 50/60 Hz supply, 4-20 ma control, EEx d II BT 4 4 Tube 6/9 mm 6 Tube 9/2 mm B9 Tube 9/27 mm, PVC Q Tube 9/27 mm and 25/34 mm PP Polypropylene S Tube 0.375"/0.5 PV PVDF (polyvinylidene fluoride) A Threaded Rp /4 PVC Polyvinyl chloride A Threaded Rp 3/4 SS Stainless steel, 36 V Threaded /4" NPT Y Hastelloy C A9 Threaded /2" NPT, male PP-L PP + integrated diaphragm leakage detection A3 Threaded 3/4 NPT PV-L PVDF + integrated diaphragm leakage detection A7 Threaded 3/4 NPT, male A4 Threaded /4" NPT PVC-L PVC + integrated diaphragm leakage detection A8 Threaded /4" NPT, male K Cementing d. 40 mm SS-L SS + integrated diaphragm leakage detection B8 Cementing d. 40 mm and flange DN 32 Y-L Y + integrated diaphragm leakage detection Gasket material E EPDM (ethylene propylene diene monomer) B7 Welding d. 40 mm and flange DN 32 V FKM (fluorocarbon) C Welding flange DN 32, SS T PTFE (polytetrafluoroethylene, eg. Teflon ) P Flange /4" C3 Threaded Rp /4 and flange DN 32 Valve ball material Valve type C Ceramic G Glass Standard T PTFE (polytetrafluoroethylene (eg. Teflon )) 2 Spring-loaded B B3 Tube 6/2 mm/cementing d. 2 mm Welding d. 6 mm B2 B4 Tube 3/20 mm/cementing d. 25 mm Welding d. 25 mm SS Stainless steel, 36 Y Hastelloy Control panel position X No control panel (Version B only) 3 Spring-loaded, 0.7 psi suction,.6 psi discharge 4 Spring-loaded,.6 psi discharge side only 5 For abrasive media Supply voltage Positions of controller (AR version) F Without motor, NEMA flange S Side, 90 from pump housing, towards adjustment knob H x20v, 50/60Hz W Wall mounted 5 3x230/460V, 60Hz F Front, 80 from pump housing 0 Without motor, IEC flange Sx Side back, 90 from pump housing, opposite adjustment knob G x230v, 50/60Hz E 230/400V, 50/60Hz; 440/480V, 60Hz K 3x500V, 50Hz *Only pumps of 0.50 HP and below. 7

8 Functions Functional overview Capacity control B AR Capacity control Stroke-frequency control Stroke-length adjustment Control panel Red light for stopped pump and error signals Green light when pump is running Control-panel lock [Start/Stop] button Front-mounted interface Wall-mounted interface Operating modes Manual control Pulse control Analog 0/4-20 ma control Pulse-based batch control Functions/options Alarm outputs Dosing controller output Leak detection (optional diaphragm breakage indication) Dual-level control (requires level controller, available on selected sizes) Pulse memory (saves up to 65,000 pulses) Operating-hours counter Remote on/off 0/4-20 ma output Available in duplex versions (Check sizing chart for availability) Fig. 7 The capacity is controlled by adjusting the stroke length Q [GPH] TM l [%] TM Fig. 5 B TM Fig. 8 Relation between stroke length and capacity B On the B, the capacity is set by means of the stroke-length adjustment knob. The stroke frequency remains constant. As shown in fig. 0, the stroke frequency is constant while only the stroke length is adjusted. TM TM Fig. 6 AR Fig. 9 B 8

9 Functions Capacity setting 00% Discharge Duration Suction 50% 0% Discharge Suction Discharge Suction Duration Duration TM Fig. 0 Relation between stroke-length adjustment and capacity on the B AR On the AR, the capacity is set both by setting the stroke length on the gearbox knob and the stroke frequency on the control unit. The control unit controls the stroke frequency by starting and stopping the motor according to the set stroke frequency. Figure 2 shows two examples: The pump is running at 00 % capacity at maximum stroke length and stroke frequency. The pump is running at 25 % capacity at 50 % stroke length and 50 % stroke frequency. Capacity setting Fig. AR TM % Discharge Duration 25% Suction Discharge Suction Duration TM Fig. 2 Capacity setting on the AR 9

10 Mode V 0-20V Motor:siehe Motorentypenschild Functions Control panel Fig. 3 Control panel, AR Legend TM Start/stop of pump Start and stop the pump by means of the [Start/Stop] button. When the pump is stopped, the display shows "stop". If the pump is stopped via an external start/stop signal, the indicator light is permanently yellow. Operating modes To select the operating mode, press the [Menu] button. The display will indicate the operating mode. To change the mode, use the [Up/Down] buttons, see fig. 3, pos. 4. Pos. 2 3 Component Mode (light-emitting diode): Red light indicates that the pump has stopped. Green light indicates that the pump has started; the light is briefly off during a suction stroke. Yellow light indicates that the pump is switched off remotely. Red light is flashing in case of an error signal. Light is off when the pump is in menu mode. Start/Stop (button): For starting and stopping the pump. Menu (button): For switching between operating modes. Up/Down (buttons): 4 For changing the values in the display. 5 LCD display. Connectors Manual control The stroke length can be set manually by means of the stroke length adjustment knob. Thanks to its control panel, AR also offers setting of the stroke frequency. Pulse control Pulse control applies to AR. The pump is dosing according to an external pulse signal such as a water meter. The number of pump strokes per pulse (multiplication) can be set between : and :999 and the number of pulses per stroke (division) between 999: and :. Analog control Control the pump via an external 4-20mA (or 0-20mA) current. 4mA = no flow, 20mA = max flow. Manual Run Stop Menu Start Down /min Up Tank-level control The tank-level control function applies to AR. Fig. 4 Connectors, AR (the illustrated AR control unit is wall mounted) Legend Socket Description Leakage detection / dosing controller Current output (indicates the current dosing flow) / remote on/off Output for stroke/pulse signal or empty-tank pre-alert signal and error signal Remote on/off Contact input Current input Empty-tank signal Empty-tank pre-alert and empty-tank signal TM The pump can be fitted with a level-control unit for monitoring the chemical level in the tank. The pump can react to two level signals. The following table shows the pump reactions to the sensor signals. Level sensors Pre-empty sensor activated Empty sensor activated Pump reaction Red indicator light is on. Empty signature in display is flashing. Pump running. Alarm relay activated. Red indicator light is on. Empty signature in display is on. Pump stopped. Alarm relay activated. 0

11 Construction General description The Grundfos pumps are hydraulic diaphragm dosing pumps. The pumps are designed for capacities between 0.50 and 2 x 278 GPH and a maximum pressure up to 2900 PSI. 25 Reciprocating positive-displacement pumps with hydraulic diaphragm TM Fig. 5 Sectional drawing, 25 Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge

12 Construction 252 Reciprocating positive-displacement pumps with hydraulic diaphragm TM Fig. 6 Sectional drawing, 252 Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 2

13 Construction 253 Reciprocating positive-displacement pumps with hydraulic diaphragm ce TM Fig. 7 Sectional drawing, 253 Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 4 Return spring (some models excluded) 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 3

14 Construction 254 Reciprocating positive-displacement pumps with hydraulic diaphragm εχ TM Fig. 8 Sectional drawing, 254 Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 4 Return spring (some models excluded) 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 4

15 Construction 255 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 9 Sectional drawing, 255 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 4 Return spring (some models excluded) 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 5

16 Construction 257 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 20 Sectional drawing, 257 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Sliding collar 6 Piston 7 Combined pressure-relief and deaeration valve 9 Diaphragm protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6

17 Construction 280 Reciprocating positive-displacement pumps with hydraulic diaphragm εχ Fig. 2 Sectional drawing, 280 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm Pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 7

18 Construction 28 Reciprocating positive-displacement pumps with hydraulic diaphragm εχ Fig. 22 Sectional drawing, 28 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates a low pressure, in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 8

19 Construction 283 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 23 Sectional drawing, 283 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 9

20 Construction 285 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 24 Sectional drawing, 285 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 20

21 Construction 286 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 25 Sectional drawing, 286 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 2

22 Construction 287 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 26 Sectional drawing, 287 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 22

23 Construction 288 Reciprocating positive-displacement pumps with hydraulic diaphragm Fig. 27 Sectional drawing, 288 TM Functional principle The rotational movement of the drive motor () is converted via the worm gearing (2) and eccentric (3) into the reciprocating suction and discharge stroke movement of the piston (6). The piston has a hollow bore and a row of radial control holes, which provide a hydraulic by-pass between the drive area and the piston stroke area. The sliding collar (5) covers the holes during the stroke and seals the stroke area from the drive area. The hydraulic movement of the solid PTFE diaphragm (0) displaces an equivalent volume of pumped liquid through the pump head () into the discharge line. During the suction stroke, the piston creates low pressure in the pump head; the discharge ball valve (3) closes and the pumped liquid flows through the suction valve (2) into the pump head. The displaced volume per stroke is solely determined by the position of the sliding collar. The active stroke length and corresponding average flow rate can therefore be changed continuously and linearly from 0 to 00 % using the stroke-length adjustment knob (4). The stroke-length adjustment knob can be adjusted when the pump is operating or stopped. Legend: Pos. Component Motor 2 Gear 3 Eccentric 5 Slide valve 6 Piston 7 Combined pressure-relief and deaeration valve 8 Oil deaeration valve 9 Diaphragm-protection valve (AMS) 0 PTFE diaphragm pump head 2 Suction valve 3 Discharge valve 4 Stroke-length adjustment knob 5 Oil fill with oil-level gauge 6 Dosing head air vent valve (priming) 23

24 Technical data Dimensions, TM Fig. 28 DImensions, Dimensions in inches (mm) Pump Model A B C D D* D2 E F Fx G H J K M Mx N X (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 3.58 (345) 4.49 (368) 3.58 (345) 3.58 (345) R / (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 6.30 (60) 7.05 (79) 6.30 (60) 6.30 (60) (472) (3) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.57 (6) 4.88 (24) 4.57 (6) 4.57 (6) 24

25 Technical data Pump Model A B C D D* D2 E F Fx G H J K M Mx N X (345) 3.58 (345) 4.49 (368) 7.7 (436) 4.49 (368) 4.49 (368) 7.7 (436) 7.7 (436) 7.7 (436) 7.7 (436) 7.7 (436) 7.7 (436) (50) 7.7 (436) 7.7 (436) 23.9 (589) (50) (50) (50) 23.9 (589) 23.9 (589) 23.9 (589) 23.9 (589) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 2.77 (553) 9.37 (492) 9.37 (492) 9.37 (492) 2.77 (553) 2.77 (553) 2.77 (553) 2.77 (553) * US connections are listed on page (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.69 (70) 6.4 (56) 6.4 (56) 6.4 (56) 6.69 (70) 6.69 (70) 6.69 (70) 6.69 (70) 9.92 (252) 9.92 (252) 9.92 (252) 9.92 (252) 9.92 (252) 9.92 (252) 9.92 (252) 0.00 (254) 9.92 (252) 9.92 (252) 0.79 (274) 0.00 (254) 0.00 (254) 0.00 (254) 0.79 (274) 0.79 (274) 0.79 (274) 0.79 (274) R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 DN 32 R /4 R /4 R /4 DN 32 DN 32 DN 32 DN (60) 6.30 (60) 7.05 (79) 8.5 (207) 7.05 (79) 7.05 (79) 8.5 (207) 8.5 (207) 8.5 (207) 8.5 (207) 8.5 (207) 8.5 (207) 8.98 (228) 8.5 (207) 8.5 (207).02 (280) 8.98 (228) 8.98 (228) 8.98 (228).02 (280).02 (280).02 (280).02 (280) 9.49 (24) 9.49 (24) 9.49 (24) 9.49 (24) 9.49 (24) (333) (333) 3. (333) 3. (333) 3. (333) (26) (26) (26) (26) (26) (26) (26) (26) (26) (26) 5.06 (28.5) (26) (26) (26) 5.06 (28.5) 5.06 (28.5) 5.06 (28.5) 5.06 (28.5) (472) (78) 8.58 (472) 8.58 (472) (78) (78) (78) (78) (78) (78) 34.2 (869) (78) (78) (980) 34.2 (869) 34.2 (869) 34.2 (869) (980) (980) (980) (980) 0.5 (3) (0) 0.5 (3) 0.5 (3) (0) (0) (0) (0) (0) (0) (0) (0) (0) 0.98 (25) (0) (0) (0) 0.98 (25) 0.98 (25) 0.98 (25) 0.98 (25) 4.57 (6) 4.57 (6) 4.88 (24) 4.88 (24) 4.88 (24) 9.96 (253) 0.3 (262) 9.96 (253) 9.96 (253) 9.96 (253) 0.3 (262) 0.3 (262) 0.3 (262) 0.3 (262).42 (290).42 (290).42 (290).42 (290).42 (290) (382) (382) 5.04 (382) 5.04 (382) 5.04 (382) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) (27) (27) 0.67 (27) 0.67 (27) 0.67 (27) 25

26 Technical data Dimensions, TM Fig. 29 Dimensions, Dimensions in inches (mm) Pump Model A B C D D* D2 E F Fx G H J K M Mx N X (365) 3.70 (348) 4.37 (365) 4.37 (365) 3.70 (348) 3.70 (348) 6.73 (425) 3.70 (348) 6.73 (425) 6.73 (425) 6.73 (425) 9.29 (490) 7.20 (437) (50) 9.29 (490) 7.20 (437) 9.37 (492) 9.37 (492) 9.37 (492) 9.37 (492) 2.77 (553) 9.4 (493) 2.77 (553) 2.77 (553) 9.4 (493) 6.4 (56) 6.4 (56) 6.4 (56) 6.4 (56) 6.69 (70) 6.4 (56) 5.73 (45.5) 6.69 (70) 6.4 (56) 6.2 (55.5) 6.2 (55.5) 6.2 (55.5) 6.2 (55.5) 0.79 (274) 0.00 (254) 0.79 (274) 0.79 (274) 0.00 (254) R 3/8 R 3/8 R 3/8 R /4 R /4 R / (42) 6.0 (55) 5.59 (42) 5.59 (42) 6.0 (55) 6.0 (55) 8.9 (208) 6.0 (55) 8.9 (208) 8.9 (208) 8.9 (208) 8.9 (208) 8.3 (2) 7.05 (79) 8.9 (208) 8.3 (2) 9.45 (240) 9.45 (240) 9.45 (240) (333) (333) 3. (333) 0.24 (26) (26) (26) (26) 5.08 (29) (26) 5.08 (29) 5.08 (29) (26) 8.3 (465) (465) 8.3 (465) (700) (700) 2 (700) 2 (700) (84) (706) (820) (84) (706) (0) (0) (0) (0) 0.98 (25) (0) 0.98 (25) 0.98 (25) (0) 4.49 (4) 4.49 (4) 4.49 (4) 4.49 (4) 4.49 (4) 4.49 (4) 6.8 (73) 4.49 (4) 6.8 (73) 6.8 (73) 6.8 (73) 6.93 (76) 7.7 (82) 7.36 (87) 6.93 (76) 7.7 (82).42 (290).42 (290).42 (290) (382) (382) 5.04 (382) (94.5) 7.66 (94.5) 7.66 (94.5) (27) (27) 0.67 (27)

27 Technical data Pump Model A B C D D* D2 E F Fx G H J K M Mx N X (490) 7.20 (437) 9.29 (490) 7.20 (437) (50) (50) (50) (50) (50) (50) (50) 2.77 (553) 9.4 (493) 2.77 (553) 9.4 (493) 2.77 (553) 2.77 (553) 2.77 (553) 2.77 (553) 2.77 (553) 2.77 (553) 2.77 (553) 6.69 (70) 6.4 (56) 6.69 (70) 6.4 (56) 5.73 (45.5) 5.73 (45.5) 5.73 (45.5) 5.73 (45.5) 5.73 (45.5) 5.73 (45.5) 5.73 (45.5) * US connections are listed see table below (274) 0.00 (254) 0.79 (274) 0.00 (254) 0.79 (274) 0.79 (274) 0.79 (274) 0.79 (274) 0.79 (274) 0.79 (274) 0.79 (274) R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 R /4 8.9 (208) 8.3 (2) 8.9 (208) 8.3 (2) 7.05 (79) 9.45 (240) 9.45 (240) 9.45 (240) US Connections for suction and discharge Model Metal heads Plastic heads /4" FNPT or /2" MNPT /4" FNPT or /2" MNPT /2" MNPT or /2" tubing /2" MNPT or /2" tubing 253 3/4" FNPT 3/4" MNPT 254 3/4" FNPT 3/4" MNPT 255 3/4" FNPT 3/4" MNPT 257 /4" ANSI Flange on inlet of Model Metal heads 280 /4" FNPT 28 /4" FNPT 283 3/4" FNPT 285 3/4" FNPT 286 3/4" FNPT 287 3/4" FNPT 288 /4" FNPT 7.05 (79) 7.05 (79) 7.05 (79) 9.2 (234) 9.2 (234) 9.2 (234) 9.45 (240) 9.45 (240) 9.45 (240) 9.45 (240) 9.45 (240) 9.45 (240) 3. (333) (333) (333) 3. (333) 3. (333) 3. (333) 3. (333) 3. (333) 3. (333) 5.08 (29) (26) 5.08 (29) (26) 5.08 (29) 5.08 (29) 5.08 (29) 5.08 (29) 5.08 (29) 5.08 (29) 5.08 (29) (84) (706) (84) (706) (820) (820) (820) (820) (820) (820) (820) 0.98 (25) (0) 0.98 (25) (0) 0.98 (25) 0.98 (25) 0.98 (25) 0.98 (25) 0.98 (25) 0.98 (25) 0.98 (25) 6.93 (76) 7.7 (82) 6.93 (76) 7.7 (82) 7.36 (87) 7.36 (87) 7.36 (87) 7.36 (87) 7.52 (9) 7.52 (9) 7.52 (9).42 (290).42 (290).42 (290).42 (290).42 (290).42 (290).42 (290).42 (290).42 (290) 5.04 (382) (382) (382) 5.04 (382) 5.04 (382) 5.04 (382) 5.04 (382) 5.04 (382) 5.04 (382) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 7.66 (94.5) 0.67 (27) (27) (27) 0.67 (27) 0.67 (27) 0.67 (27) 0.67 (27) 0.67 (27) 0.67 (27) 27

28 Technical data pumps supplied from the USA B pumps are supplied without motors. The motors listed below for B version pumps are sold separately and can be easily mounted in the field. AR pumps, with the Etron-Profi controller for pulse frequency control, or 4-20mA control are only available in selected sizes as indicated below. AR pumps are supplied with motors. Motors TEFC AC 725 RPM B (manual control) 25, 252, ,28 Servo motors Type Simplex or duplex Control variants Motor flange 254 Simplex or duplex B, AT5 NEMA 56 C , , 286, 287 Remote stroke-length control via a 4-20 ma servomotor is available on control variant AT5 pumps. One or two servo-motors can be used on duplex pumps, and used on an AR version to remotely control both stroke length and stroke frequency. HP Phase Voltage Comment Grundfos material number / B, AT5 NEMA 56 C / / / X-proof, class I, Grp D AR - /3 5 IP 55 Motor inlcuded with pump Simplex or duplex B, AT5 NEMA 56 C Simplex B, AT5 NEMA 45 TC Duplex B, AT5 NEMA 45 TC / / / / /460 X-proof, class I, Grp D / / / / /460 X-proof, class I, Grp D / / / / /460 X-proof, class I, Grp D / /460 X-proof, class I, Grp D Enclosure class, standard version IP 55 Enclosure class, Ex-proofed servo motor version IP 67 Voltage 5V, 50/60 Hz, single phase Gra3466 Fig with servo motor for stroke length control 28

29 Technical data Performance data, Pump Model V/stroke [cm 3 ] Pmax ) [psi] Capacity 2) 3) [GPH] ([l/h]) ) Maximum back pressure. 2) The maximum capacity is measured at the maximum back pressure. 3) The capacity is per dosing head. (Duplex pumps have double flow rate of single-head versions.) 4) Motor for frequency control. For duplex pumps. 60 Hz 50 Hz Motor power Stroke rate [spm] Capacity 2) 3) [GPH] ([l/h]) Stroke rate [spm] Standard [HP] PTC 4) [HP] (2.6) (2.2) 4 /4 / (2.8) (2.3) 4 /4 / (2.9) 7 (2.4) 4 /4 / (5.4) 35.9 (4.5) 29 /4 / (5.9) (4.9) 29 /4 / (6) (5) 29 /4 / (2) (0) 29 /4 / (3) () 29 /4 / (3) () 63 /4 / (4) (2) 63 /4 / (3) 63 /4 / (20) (7) 96 / (22) (8) 96 / (23) (9) 96 / (25) (2) 29 /4 / (27) (23) 63 /4 / (29) (24) 63 /4 / (43) (36) 96 / (44) (37) 96 / (52) (43) 63 /4 / (60) (50) 26 3/4 3/ (78) (67) 96 / (99) (83) 20 / (6) (97) 54 3/4 3/ (22) (02) 54 3/4 3/ (63) (36) 75 3/4 3/ (72) (43) 75 3/4 3/ (200) (66) 92 3/ (20) (75) 92 3/ (233) (94) 54 3/4 3/ (242) (202) 2 3/ (255) (23) 2 3/ (264) (220) 28 /2 2 (3*) (324) (270) 75 3/ (398) (332) 92 3/ (484) (403) 2 3/ (528) (440) 56 / (690) (575) 73 / (924) (770) 98 / (056) (880) 2 /2 3 29

30 Technical data Performance data, Pump Model Vstroke [cm 3 ] Pmax ) [psi] Capacity 2) 3) [GPH] ([l/h]) ) Maximum back pressure. 2) The maximum capacity is measured at the maximum back pressure. 3) The capacity is per dosing head. (Duplex pumps have double flow rate of single-head versions.) 4) Motor for frequency control. For duplex pumps. 60 Hz 50 Hz Motor power Stroke rate [spm] Capacity 2) 3) [GPH] ([l/h]) Stroke rate [spm] Standard [HP] (.74) (.45) 63 /4 / (2.4) (2) 29 /4 / (2.66) (2.22) 96 /4 / () (2.8) 20 /4 / (5) 76. (4.2) 63 /4 ( (7.7) 5.69 (6.4) 96 /4 / (7.5) 54 3/4 3/ (9.6) (8) 20 /4 / (2.5) (0.4) 75 3/4 3/ (5.4) (2.8) 92 3/4 3/ (8.6) (5.5) 2 3/4 3/ (22) (8) 56 / (23) (9) 54 3/4 3/ (24) (20) 28 / (28) (23) 73 / (32) (27) 75 3/4 3/ (37) (3) 98 / (40) (33) 92 3/4 3/ (43) (36) 2 / (48) (40) 2 3/4 3/ (48) (40) 56 / (63) (52) 73 / (84) (70) 98 / (96) (80) 2 / (02) (85) 56 / (33) () 73 / (204) (70) 2 /2 2 PTC 4) [HP] 30

31 Technical data Suction lift, Pump Model Liquids with a viscosity similar to water [ft] ([m]) Max. suction lift Liquids with max. permissible viscosity [ft] ([m]) Max. inlet pressure [psi] ([bar]) Min. differential pressure [psi] ([bar]) Max. permissible viscosity at operating temperature ) [cps] ([mpa s]) 0 to 63 strokes/min 64 to 20 strokes/min 20 and above strokes/min () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () (5) 29 (2) (00) 0 (0) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () 0 6 (8) 29 (2) (00) 50 (50) () (5) 29 (2) (00) 0 (0) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 0 (0) () (5) 29 (2) (00) 0 (0) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) (0.8) 29 (2) 200 (200) 00 (00) 5 (5) () (5) 29 (2) (00) 5 (5) () (5) 29 (2) (00) 5 (5) () 0.6 (0.8) 29 (2) 200 (200) 50 (50) 5 (5) (0.8) 29 (2) 200 (200) 00 (00) 5 (5) (0.8) 29 (2) 200 (200) 00 (00) 5 (5) (0.8) 29 (2) 200 (200) 00 (00) 5 (5) () 0.6 (0.8) 29 (2) 200 (200) 50 (50) 5 (5) () 0.6 (0.8) 29 (2) 200 (200) 50 (50) 5 (5) () 0.6 (0.8) 29 (2) 200 (200) 50 (50) 5 (5) (0.8) 29 (2) 200 (200) 50 (50) 5 (5) ) Approximate values applying to the standard version of pumps. The values refer to dosing liquids with the following characteristics: - newtonian - non-degassing - not containing suspended matter - density similar to water. ) Flooded suction Note: The viscosity increases when the temperature decreases. 3