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SPXFLOW APV DW+ Series Instruction Manual

Positive displacement pump
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DW+ series
Positive
Displacement
Pump
Original Instructions
MODELS:
DW+1-5
FORM NO.: PL8500013
REVISION: 01/2025
I N S T R U C T I O N M A N U A L
READ AND UNDERSTAND THIS MANUAL PRIOR TO
OPERATING OR SERVICING THIS PRODUCT.

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Summary of Contents for SPXFLOW APV DW+ Series

  • Page 1 I N S T R U C T I O N M A N U A L DW+ series Positive Displacement Pump Original Instructions MODELS: DW+1-5 FORM NO.: PL8500013 REVISION: 01/2025 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
  • Page 2 Table of Contents General Description 1.1. Intended Use Pump Dimensions 2.1. DW+1-5 Pump Dimensions 2.2. DW+1-5 Pump Dimensions with Fittings 2.3. Dimension Sketch for DW+1-5 with Horizontal In/Outlet, Baseplate Type 1 and Guard 2.4. Dimension Sketch for DW+1-5 with Vertical In/Outlet, Baseplate Type 1 and Guard 2.5.
  • Page 3 Table of Contents Maintenance 10.1. Replacing the Rotors 10.2. Replacing Single Mechanical Shaft Seals 10.3. Changing Port Orientation 10.4. Changing the Bearings (45, 48) 10.5. Recommended Holding of Spare Parts Technical Data 11.1. Tightening Torque Settings 11.2. Maximum Differential and Discharge Pressures 11.3.
  • Page 4 Declaration of Conformity In the process of consolidating the declaration...
  • Page 5 This page is intentionally left blank.
  • Page 6 General Description This operating manual should be read carefully by the competent operating and maintenance personnel. It must be pointed out that we will not accept any liability for damage or faults resulting from failing to comply with this operating manual. Descriptions and data given herein are subject to technical changes.
  • Page 7 Pump Dimensions 2.1. DW+1-5 Pump Dimensions DW+ PUMP INSTRUCTION MANUAL | 7...
  • Page 8 Pump Dimensions Pump model weight* capacity* (kg) (litres) DW+1/003/- 260 217.2 40 121 12.5 146 150 166 122 193 DN15 018 08.5 20.5 16.0 19.0 DW+1/004/- 260 217.2 40 121 12.5 146 150 166 122 193 DN15 018 08.5 20.5 16.0 19.0 DW+1/007/-...
  • Page 9 Pump Dimensions 2.2. DW+1-5 Pump Dimensions with Fittings CLAMP MALE PARTS BS 4825 BS 4825 BS 4825 ISO 2852 DIN 32676 ISO 2853 DIN 11851 DS 722 part 3 part 4 (“1145”) part 5 Pump 1” TRI 1” ISO DN25 1”...
  • Page 10 Pump Dimensions 2.3. Dimension Sketch for DW+1-5 with Horizontal In/Outlet, Baseplate Type 1 and Guard DW+ pump size DW+1 DW+2 DW+3 DW+4 DW+5 Symbol 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1050...
  • Page 11 Pump Dimensions 2.4. Dimension Sketch for DW+1-5 with Vertical In/Outlet, Baseplate Type 1 and Guard DW+ pump size DW+1 DW+2 DW+3 DW+4 DW+5 Symbol 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1050...
  • Page 12 Pump Dimensions 2.5. Dimension Sketch for DW+1-5 with Horizontal In/Outlet, Baseplate Type 1 and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 12 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 13 Pump Dimensions DW+ pump size DW+1 DW+2 DW+3 DW+4 DW+5 Symbol 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1050 1050 1050 1050 1300 1300 1300 1300 SK 072.1 SK 172.1 1160 1185 1225...
  • Page 14 Pump Dimensions 2.6. Dimension Sketch for DW+1-5 with Vertical In/Outlet, Baseplate Type 1 and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 14 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 15 Pump Dimensions DW+ pump size DW+1 DW+2 DW+3 DW+4 DW+5 Symbol 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1050 1050 1050 1050 1300 1300 1300 1300 SK 072.1 SK 172.1 1160 1185 1225...
  • Page 16 Pump Dimensions 2.7. Dimension Sketch for DW+1-5 with Horizontal In/Outlet, Baseplate Type 2 and Guard DW+ pump size Symbol DW+1 DW+2 DW+3 DW+4 DW+5 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260...
  • Page 17 Pump Dimensions 2.8. Dimension Sketch for DW+1-5 with Vertical In/Outlet, Baseplate Type 2 and Guard DW+ pump size Symbol DW+1 DW+2 DW+3 DW+4 DW+5 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260...
  • Page 18 Pump Dimensions 2.9. Dimension Sketch for DW+1-5 with Horizontal In/Outlet, Baseplate Type 2 and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 18 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 19 Pump Dimensions DW+ pump size DW+1 DW+2 DW+3 DW+4 DW+5 Symbol 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260 1260 1260 1260 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 SK 072.1 1052 1076...
  • Page 20 Pump Dimensions 2.10. Dimension Sketch for DW+1-5 with Vertical In/Outlet, Baseplate Type 2 and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 20 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 21 Pump Dimensions DW+ pump size Symbol DW+1 DW+2 DW+3 DW+4 DW+5 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260 1260 1260 1260 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 SK 072.1 1052 1076...
  • Page 22 Pump Dimensions 2.11. Dimension Sketch for DW+1-5 and Horizontal In/Outlet, Baseplate Type 2 with Feet and Guard * See chapter: Pump dimensions with fittings. ** 4 off. Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. DW+ pump size Symbol DW+1...
  • Page 23 Pump Dimensions 2.12. Dimension Sketch for DW+1-5 and Vertical In/Outlet, Baseplate Type 2 with Feet and Guard * See chapter: Pump dimensions with fittings. ** 4 off. Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. DW+ pump size Symbol DW+1...
  • Page 24 Pump Dimensions 2.13. Dimension Sketch for DW+1-5 and Horizontal In/Outlet, Baseplate Type 2 with Feet and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 24 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 25 Pump Dimensions DW+ pump size Symbol DW+1 DW+2 DW+3 DW+4 DW+5 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260 1260 1260 1260 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 SK 072.1 1052 1076...
  • Page 26 Pump Dimensions 2.14. Dimension Sketch for DW+1-5 and Vertical In/Outlet, Baseplate Type 2 with Feet and Shroud Note! Dimensions given are in accordance with ISO 2768-mK-E, which specifies the permissible deviation in dimensions unless otherwise specified in the figure. 26 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 27 Pump Dimensions DW+ pump size Symbol DW+1 DW+2 DW+3 DW+4 DW+5 003/- 004/- 007/- 006/- 007/- 013/- 014/- 017/- 030/- 050/- 033/- 039/- 073/- 125/- 080/- 093/- 142/- 256/- 1260 1260 1260 1260 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 ** ø14 SK 072.1 1052 1076...
  • Page 28 Sectional Drawing - Pump Item Description Item Description Front cover O-ring, rotor screw Bolt, front cover Rotor Bolt, front cover stepped O-ring, rotor/shaft Nut, front cover dome Shims, rotor Gasket, front cover Shaft main Screw, rotor case to chassis Shaft aux Dowel Gear key Rotor case...
  • Page 29 Introduction 4.1. DW+ Pump Range This manual covers all sizes of standard DW+ pumps as well as high temperature pumps. Check the nameplate of the pump to ensure that you have one of the above versions. 4.2. DW+ Pump, Standard and Auxiliary Equipment The following standard options are available in the DW+ range: Bareshaft pump.
  • Page 30 Safety Precautions The safety advice listed in this operating manual, the national workplace health and safety regulation as well as internal precautions and practical advice on ways to manage the risks must be followed. It is strictly forbidden to suspend safety devices or change their mode of working.
  • Page 31 Receipt, Storage, Handling and Transport 6.1. Receipt Fig. 2 Check the consignment for damage immediately on arrival. In case of damage, clearly mark upon the carrier’s paperwork (with a brief description of the damage) that the goods have been received in a damaged condition.
  • Page 32 Installation of Pump Caution! Read through the instructions before installing the pump and starting it up. If in doubt, contact your local SPX Flow representative. 7.1. Positioning Caution! Pumps should only be installed, disassembled, repaired and assembled by personnel trained in servicing of SPX Flow pumps, or by SPX Flow fitters.
  • Page 33 Installation of Pump Fig. 9 7.5. Liquid Supply for Water Flushed Seals If seal flushing is required, connect the flushing liquid to the pump. Pumps fitted with a liquid-flushed mechanical shaft seal have 2 hose connectors for flushing liquids in the seal housing. The hose connectors are M5 and fit a Ø6.0 mm hose.
  • Page 34 Start-up and Operation Before starting the pump, remove any dirt, debris or foreign objects which may have collected in the rotor chamber. The rotors should be removed from the pump during the cleaning of the system before start-up. Flushing plugs can be used, see spare parts chapter.
  • Page 35 Start-up and Operation that the pump rotates freely, that nothing obstructs the flow and that liquid has free access to the pump, that the rotational direction is correct, that the coupling guard has been fitted properly, if the pump has a flushed seal, check that the flushing flowrate is adequate.
  • Page 36 Start-up and Operation Standard lubricants: Lubricant type Pump/ambient temp. °C Oil temp. °C Mobil Shell Castrol Mineral Synthetic Energol Mobil Omala Alpha Ambient temp. t<40 °C and -20 - +120 °C GR-XP gear Oil- all DW+ pumps with product temp.<110 °C Ambient temp.
  • Page 37 Start-up and Operation 8.4. Fault Finding Symptoms Possible causes - see table below Motor overheats: 6, 7, 14, 15, 17, 19 Pump under capacity: 2, 7, 8, 9 No flow from pump: 1, 2, 3, 5 Unsteady flow: 2, 4, 5, 7 Noise and vibration: 2, 4, 5, 6, 7, 9, 10, 13, 14, 15, 16, 17, 18, 19, 20 Stall on start-up:...
  • Page 38 Dismantling and Re-Assembling the Pump There are a few basic operations to carry out during maintenance of the pump. These are described in the following chapters. Note! The sectional drawing shows the position of the various components mentioned in this procedure. Caution! Never dismantle the pump before the power supply to the motor has been disconnected.
  • Page 39 Dismantling and Re-Assembling the Pump 9.2. Removing the Rotors (35): Fig. 12 To remove and re-fit the rotors it is necessary to dismantle the pump Rotor locking piece as described below. Use the sectional drawing for reference (page 28). 1. Remove the front cover (1) as described in chapter 9.1. 2.
  • Page 40 Dismantling and Re-Assembling the Pump 9.3. Removing the Rotor Case (9) Fig. 16 To remove and re-fit the rotor case (9) it is necessary to dismantle the pump as described below. Use the sectional drawing for Tapped holes reference (page 28). 1.
  • Page 41 Dismantling and Re-Assembling the Pump Fig. 17 4. Fill the gearbox with the recommended oil to the specified level according to fig. 10. Check for leaks. See chapter 8.2 for the Rotor locking piece required oil amount. 9.5. Removing the Timing Gears (54) To remove and re-fit the timing gears (54) it is necessary to dismantle the pump as described below.
  • Page 42 Dismantling and Re-Assembling the Pump 9.6. Removing the Oil Seal Plate (10) To remove and re-fit the oil seal plate (10) it is necessary to dismantle the pump as described below. Use the sectional drawing for reference (page 28). 1. Remove the front cover (1) as described in chapter 9.1. 2.
  • Page 43 Dismantling and Re-Assembling the Pump 4. If the clearances are not within the limits stated in chapter 11.8 or if the distances measured are able to be made closer to the mean values stated in chapter 11.8, the rotors (35) are removed as stated in chapter 9.2.
  • Page 44 Dismantling and Re-Assembling the Pump 7. The new distance between the spacer (52) and moved gear (54) is measured with feeler gauges. Shims (53) with total thickness corresponding to the distance measured are selected. 8. Remove the gear (54) and gear key (40) as described in chapter 9.6.
  • Page 45 10. Maintenance 10.1. Replacing the Rotors The rotors of the pump can be replaced with new rotors of the same type and dimension. It is also possible to change from piston rotor to bi-lobe rotor and vise versa on the following pump types: DW+1/003/7.5 ⇔...
  • Page 46 10. Maintenance 10.3. Changing Port Orientation It is possible to change the suction and discharge port orientation from horizontal to vertical and vice versa without making any modifications to the pump. To change the port orientation it is necessary to dismantle the pump as described below.
  • Page 47 10. Maintenance 12. Remove outer bearing races (45b, 48b) from the chassis and inner bearing races (45a, 48a) from the shafts (38, 39). If the shafts are damaged they should be replaced. 13. Clean bearing seats of the chassis (13) and the shafts (38, 39). 14.
  • Page 48 10. Maintenance 10.5. Recommended Holding of Spare Parts We recommend that both seal kits and service kits are held in stock. Seal Kit The seal kit consists of wearing parts of the seal. Service Kit The service kit is made up of a number of main components of the pump.
  • Page 49 Technical Data 11.1. Tightening Torque Settings Tightening torque required for bolts, nuts, and screws in the DW+ pumps: Metric tool must be use - size shown in [mm] Front Front Rotor Rotor Seal Oilseal Chassis/ Running torque, Lipseal cover cover bolts case/ housing...
  • Page 50 Technical Data 11.2. Maximum Differential and Discharge Pressures The maximum differential pressures and discharge pressure specified below must not be exceeded. Differential pressure Max. 30 bar: Max. 25 bar: Max. 20 bar: DW+5/093/25, DW+2/007/20; DW+3/017/20; DW+4/039/20 Max. 15 bar: DW+1/004/15; DW+1/007/15_600; DW+2/013/15_600; DW+3/030/15_600;...
  • Page 51 Technical Data LpA in dB refers to the sound pressure level at a distance of 1 metre from the surface of the pump at a height of 1.6 m above floor level, as required by 2006/42/EC. Lwa states the sound power level. The sound power levels have been stated for the following operating conditions: A: Maximum differential pressure and maximum rotational speed...
  • Page 52 Technical Data 11.6. Temperature Changes and Maximum Temperature The following precautions should be observed regarding product temperature changes in the pump. High efficiency and super tight (NGA) rotors: Pumps fitted with high efficiency or super tight rotors should be treated with caution when the product temperature changes. Multi-duty rotors: Pumps fitted with multi-duty rotors are designed to withstand an immediate product temperature change corresponding to the CIP...
  • Page 53 Technical Data 11.8. Clearance of Pumps Adjustment DW+1/003/7.5 - Piston High efficiency 110°C Front Bag/Rear 0.15 0.05 0.07 Min. 0.21 0.11 0.15 Multi-Duty 110°C Supertight Front Bag/Rear Front Bag/Rear 0.07 0.04 0.05 0.20 0.09 0.07 Min. Min. 0.26 0.15 0.15 0.13 0.10 0.11...
  • Page 54 Technical Data DW+2/006/10 - Piston High efficiency 110°C Front Bag/Rear 0.05 0.07 0.16 0.22 0.11 0.15 Supertight Multi-Duty 110°C Front Bag/Rear Front Bag/Rear 0.12 0.04 0.05 Min. 0.23 0.08 0.07 Min. 0.18 0.10 0.11 0.29 0.14 0.15 DW+2/007/20 - Lobe High efficiency 110°C High temperature 180°C Front...
  • Page 55 Technical Data DW+3/014/10 - Piston High temperature 180°C High efficiency 110°C Front Bag/Rear Front Bag/Rear 0.17 0.06 0.09 0.26 0.14 0.14 Min. Min. 0.23 0.12 0.17 0.32 0.20 0.22 Multi-Duty 110°C Supertight Front Bag/Rear Front Bag/Rear 0.23 0.11 0.09 0.07 0.06 0.06 Min.
  • Page 56 Technical Data DW+4/033/10 - Piston High temperature 180°C High efficiency 110°C Front Bag/Rear Front Bag/Rear Min. Min. 0.29 0.14 0.17 0.20 0.07 0.09 0.35 0.22 0.33 0.26 0.15 0.25 Multi-Duty 110°C Supertight Front Bag/Rear Front Bag/Rear Min. Min. 0.25 0.10 0.09 0.10 0.06...
  • Page 57 Technical Data DW+5/080/12.5 - Piston High efficiency 110°C Front Bag/Rear 0.31 0.12 0.14 0.37 0.20 0.30 Multi-Duty 110°C Supertight Front Bag/Rear Front Bag/Rear 0.36 0.14 0.14 0.23 0.07 0.10 Min. Min. 0.42 0.22 0.30 0.29 0.13 0.16 DW+5/093/25 - Lobe High efficiency 110°C High temperature 180°C Front...
  • Page 58 12. Spare Parts DW+1 12.1. Pump 12.1.1 DW+1 * Wet end seal kit. # Gear box seal kit. 58 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 59 12. Spare Parts DW+1 Piston Lobe Lobe Lobe DW+1/003/7.5 DW+1/004/15 DW+1/007/7 DW+1/007/15_600 Item Material Description Part No. AISI 316L Front cover LA1110101 LA1110100 LA1110100 LA1110100 AISI 304 Big bolt, front cover LA1000100 LA1000100 LA1000100 LA1000100 AISI 304 Small bolt, front cover LA1001200 LA1001200 LA1001200...
  • Page 60 12. Spare Parts DW+1 * Wet end seal kit. # Gear box seal kit. 60 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 61 12. Spare Parts DW+1 Piston Lobe Lobe Lobe DW+1/003/7.5 DW+1/004/15 DW+1/007/7 DW+1/007/15_600 Item Material Description Part No. AISI 329 Rotor screw with washer LA10501003 LA10501004 LA10501006 LA105010061 18/02 Washer ring LA2658100 LA2658100 LA2658100 LA2658100 AISI 316L Rotor-high efficiency LA141003P2SH LA14100421SH LA14100721SH AISI 316L Rotor-Multi-Duty...
  • Page 62 12. Spare Parts DW+2 12.1.2 DW+2 * Wet end seal kit. # Gear box seal kit. 62 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 63 12. Spare Parts DW+2 Piston Lobe Lobe Lobe DW+2/006/10 DW+2/007/20 DW+2/013/10 DW+2/013/15_600 Item Material Description Part No. AISI 316L Front cover LA1110201 LA1110200 LA1110200 LA1110200 AISI 304 Big bolt, front cover LA1000200 LA1000200 LA1000200 LA1000200 AISI 304 Small bolt, front cover LA1001200 LA1001200 LA1001200...
  • Page 64 12. Spare Parts DW+2 * Wet end seal kit. # Gear box seal kit. 64 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 65 12. Spare Parts DW+2 Piston Lobe Lobe Lobe DW+2/006/10 DW+2/007/20 DW+2/013/10 DW+2/013/15_600 Item Material Description Part No. AISI 329 Rotor screw with washer LA10502006 LA10502007 LA10502013 LA10502013 18/02 Washer ring LA2658200 LA2658200 LA2658200 LA2658200 AISI 316L Rotor-high efficiency LA142006P2SH LA14200721SH LA14201321SH AISI 316L Rotor-Multi-Duty...
  • Page 66 12. Spare Parts DW+3 12.1.3 DW+3 * Wet end seal kit. # Gear box seal kit. 66 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 67 12. Spare Parts DW+3 Piston Lobe Lobe Lobe Lobe DW+3/014/10 DW+3/017/20 DW+3/030/10 DW+3/050/5 DW+3/030/15_600 Item Material Description Part No. AISI 316L Front cover LA1110301 LA1110300 LA1110300 LA1110300 LA1110300 AISI 304 Big bolt, front cover LA1001300 LA1001300 LA1001300 LA1001300 LA1001300 AISI 304 Small bolt, front cover LA1000300 LA1000300...
  • Page 68 12. Spare Parts DW+3 * Wet end seal kit. # Gear box seal kit. 68 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 69 12. Spare Parts DW+3 Piston Lobe Lobe Lobe Lobe DW+3/014/10 DW+3/017/20 DW+3/030/10 DW+3/050/5 DW+3/030/15_600 Item Material Description Part No. AISI 329 Rotor screw with washer LA10503014 LA10503016 LA10503030 LA10503030 LA10503050 18/02 Washer ring LA2658300 LA2658300 LA2658300 LA2658300 LA2658301 AISI 316L Rotor-high efficiency LA143014P2SH LA14301621SH...
  • Page 70 12. Spare Parts DW+4 12.1.4 DW+4 * Wet end seal kit. # Gear box seal kit. 70 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 71 12. Spare Parts DW+4 Piston Lobe Lobe Lobe Lobe Lobe DW+4/073/15 DW+4/125/7 DW+4/033/10 DW+4/039/20 DW+4/073/10 DW+4/125/5 _600 _600 Item Material Description Part No. AISI 316L Front cover LA1110401 LA1110400 LA1110400 LA1110400 LA1110400 LA1110400 AISI 304 Big bolt, front cover LA1000400 LA1000400 LA1000400 LA1000400...
  • Page 72 12. Spare Parts DW+4 * Wet end seal kit. # Gear box seal kit. 72 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 73 12. Spare Parts DW+4 Piston Lobe Lobe Lobe Lobe Lobe DW+4/033/10 DW+4/039/20 DW+4/073/10 DW+4/073/15_600 DW+4/125/5 DW+4/125/7_600 Item Material Description Part No. LA10504125 AISI 329 Rotor screw with washer LA10504033 LA10504039 LA10504039 LA10504039 LA10504125 LA2658401 18/02 Washer ring LA2658400 LA2658400 LA2658400 LA2658400 LA2658401 AISI 316L...
  • Page 74 12. Spare Parts DW+5 12.1.5 DW+5 * Wet end seal kit. # Gear box seal kit. 74 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 75 12. Spare Parts DW+5 Piston Lobe Lobe Lobe DW+5/142/15 DW+5/080/12.5 DW+5/093/25 DW+5/256/7 Item Material Description Part No. AISI 316L Front cover LA1110501 LA1110500 LA1110500 LA1110500 AISI 304 Big bolt, front cover LA1000500 LA1000500 LA1000500 LA1000500 AISI 304 Small bolt, front cover LA1001500 LA1001500 LA1001500...
  • Page 76 12. Spare Parts DW+5 * Wet end seal kit. # Gear box seal kit. 76 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 77 12. Spare Parts DW+5 Piston Lobe Lobe Lobe DW+5/080/12.5 DW+5/093/25 DW+5/142/15 DW+5/256/7 Item Material Description Part No. AISI 329 Rotor screw with washer LA10505080 LA10505093 LA10505142 LA10505256 18/02 Washer ring LA2658500 LA2658500 LA2658500 LA2658500 AISI 316L Rotor-high efficiency LA145080P2SH LA14509321SH LA14514221SH LA14525621SH AISI 316L...
  • Page 78 12. Spare Parts 12.2. Motor Shroud Type 1 Type 2 + Type 2 with Feet 78 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 79 12. Spare Parts DW+1 DW+2 Item Description Part No. Shroud complete LAK2500100 LAK2501100 LAK3050100 LAK3051100 LAK3052200 LAK3600200 Shroud LA2775001 LA2775001 LA2775002 LA2775002 LA2775002 LA2775004 Cover LA2776011 LA2776011 LA2776002 LA2776002 LA2776013 LA2776003 Bracket LA2770321 LA2771321 LA2770223 LA2770223 LA2770272 LA2770272 LA2770272 Screws, bracket L707608 L707608 L707608...
  • Page 80 12. Spare Parts 12.3. Baseplate Type 1 DW+1 DW+2 DW+3 DW+4 DW+5 Part No. Type 1 LA2760100 LA2760200 LA2760300 LA2760400 LA2760500 Type 2 DW+1 DW+2 DW+3 DW+4 DW+5 Part No. Type 2 LA2764100 LA2764200 LA2764300 LA2764400 LA2764500 Type 2 with feet DW+1 DW+2 DW+3...
  • Page 81 12. Spare Parts 12.4. Complete Motor Shroud Type 1 DW+1 DW+2 DW+3 DW+4 DW+5 In-/outlet position Part No. Gear size SK 072.1 LAK2500100 LAK3050100 LAK3052200 LAK3052200 SK 172.1 LAK2500100 LAK3050100 LAK3052200 LAK3052200 LAK3052200 LAK3601300 LAK3603400 LAK3603400 SK 372.1 LAK2501100 LAK3051100 LAK3052200 LAK3601300 LAK4506500...
  • Page 82 12. Spare Parts 12.5. Coupling Guard Item Description DW+1 DW+2 DW+3 DW+4 DW+5 Screw L705856 L705856 L705856 L705856 L705856 Washer L701477 L701477 L701477 L701477 L701477 L700240 L700240 L700240 L700240 L700240 Shaft mounted at the bottom Shaft mounted horizontally Shaft mounted on the top (right) Type 1 DW+1...
  • Page 83 12. Spare Parts Type 2 with feet DW+1 DW+2 DW+3 DW+4 DW+5 In-/outlet position Part No. Gear size LA2780101 LA2780202 LA2780203 LA2780301 SK 072.1 LA2780101 SK 172.1 LA2780101 LA2780101 LA2780202 LA2780203 LA2780301 LA2780306 LA2780102 LA2780206 LA2780204 LA2780302 LA2780307 SK 372.1 LA2780102 LA2780410 LA2780413...
  • Page 84 12. Spare Parts 12.7. Locking Tool Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Material Description LAFT0001 LAFT0002 LAFT0005 Plastic Piston locking tool LAFT0003 LAFT0004 LAFT0011 LAFT0012 Plastic Lobe locking tool LAFT0013 LAFT0014 LAFT0015 84 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 85 12. Spare Parts 12.8. Fitting Tools for Pump Flushing DW+1-5 LOBE PISTON Part No. Lobe Lobe Piston Lobe Piston Lobe DW+1/003/- DW+1/004/- DW+1/007/- DW+2/006/- DW+2/007/- DW+2/013/- Item Material Description LA2370100 LA2370101 LA2370103 LA2370200 LA2370201 LA2370203 Complete kit LA2200100 LA2200200 LA2200200 LA2200200 L2200100 LA2200100...
  • Page 86 13. Shaft Seal 13.1. Single Mechanical Shaft Seal Operational Specifications Max. pump discharge pressure: see chapter 11.2 Rotational speed per minute: see chapter 11.7 Product temperature °C: see chapter 11.4 13.1.1 Replacing Single Mechanical Shaft Seals To change the shaft seal it is necessary to disassemble the pump as described below.
  • Page 87 13. Shaft Seal 13.2.1 Replacement of Single Mechanical Shaft Seal with Single Mechanical Shaft Seal with Water Flush To change the shaft seal it is necessary to disassemble the pump as described in the following. Use the sectional drawing for reference (page 28 and drawing on the left).
  • Page 88 13. Shaft Seal 19. Mount the rotors (35) as described in chapter 9.2. 20. Mount the front panel (1) as described in chapter 9.1. Flushing outlet 21. Check that the rotors turn freely. Connection for Flushing Liquid When the pump is set up with in- and outlet vertical, the flushing liquid supply is connected to the bottom elbows, as shown in figure on the left.
  • Page 89 13. Shaft Seal 8. Remove the rotary seal face (O) and O-ring (P) from the stopring (R). 9. Check that the stopring (R) is clean and correctly positioned on the shaft (38, 39). The stopring (R) must be pushed all the way back to the shaft shoulder.
  • Page 90 13. Shaft Seal 5. Lubricate the new lip seal (Z) generously with a food-quality grease and bring the lip seal over the shaft (38, 39) onto the seal housing (E). Check that the seal has been installed with the correct side uppermost –...
  • Page 91 13. Shaft Seal 12. Mount the rotors (35) as described in chapter 9.2. 13. Mount the front panel (1) as described in chapter 9.1. 14. Check that the rotors turn freely. Note! All types of shaft seal (single lip seal, triple lip seal, single mechanical shaft seal, single mechanical shaft seal with water flush, double mechanical shaft seal and packed gland) can all...
  • Page 92 13. Shaft Seal 13.7. Spare Parts 13.7.1 DW+1-5 Single Mechanical Seal Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. 1 & 2 SiC/C-EPDM Seal face kit* LA2355104 LA2355204 LA2355304 LA2355404 LA2355504 1 & 2 SiC/SiC-EPDM Seal face kit* LA2356104 LA2356204 LA2356304 LA2356404 LA2356504 EPDM O-rings kit...
  • Page 93 13. Shaft Seal 13.7.2 DW+1-5 Single Mechanical Seal with Flush Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part no. 1 & 2 SiC/C-EPDM Seal face kit* LA2355104 LA2355204 LA2355304 LA2355404 LA2355504 1 & 2 SiC/SiC-EPDM Seal face kit* LA2356104 LA2356204 LA2356304 LA2356404 LA2356504 EPDM O-rings kit...
  • Page 94 13. Shaft Seal 13.7.3 DW+1-5 Double Mechanical Seal Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. 1 & 2 1 SiC/C-EPDM Seal face kit, prod.side* LA2357104 LA2357204 LA2357304 LA2357404 LA2357504 1 & 2 1 SiC/SiC-EPDM Seal face kit, prod.side* LA2358104 LA2358204 LA2358304 LA2358404 LA2358504 EPDM O-rings kit LA2310104 LA2310204 LA2310304 LA2310404 LA2310504...
  • Page 95 13. Shaft Seal 13.7.4 Single Lip Seal Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. 1 & 7 1 EPDM O-rings kit, seal housing LA2365104 LA2365204 LA2365304 LA2365404 LA2365504 1 & 7 1 FPM ( O-rings kit, seal housing LA2365102 LA2365202 LA2365302 LA2365402 LA2365502 Viton AISI 316L Seal housing...
  • Page 96 13. Shaft Seal 13.7.5 Triple Lip Seal Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. 1 & 8 1 EPDM O-rings kit,seal housing LA2365104 LA2365204 LA2365304 LA2365404 LA2365504 1 & 8 1 FPM ( O-rings kit,seal housing LA2365102 LA2365202 LA2365302 LA2365402 LA2365502 Viton AISI 316L Seal housing...
  • Page 97 13. Shaft Seal 13.7.6 Packed Gland Seal Pump type DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. Rotor case PTFE Packed gland – – – LA2242400 LA2242500 PTFE Packed gland LA2242100 LA2242200 LA2242300 – – EPDM O-ring L25010004FQ LA2310204 LA2310304 L2578004 LA2310504 FPM ( O-ring...
  • Page 98 14. Accessories 14.1. Thermal Jacket This is an appendix manual and applies only with thermal jacket. The DW+ pump fitted with thermal jacket must be put into operation or serviced only if one has read and understood the complete DW+ pump instruction manual.
  • Page 99 14. Accessories 14.1.6 Spare Parts DW+ PUMP INSTRUCTION MANUAL | 99...
  • Page 100 14. Accessories Part No. Piston Lobe Lobe Lobe Pos. Material Description DW+1/003/- DW+1/004/- DW+1/007/- Complete ¤1 LA1101110 LA1101111 LA1101111 front cover EPDM O-ring L772238 L772238 L772238 EPDM O-ring L772241 L772241 L772241 ¤9 AISI 316L Rotor case LA17141003 LA17141003 LA17141007 Pos. Material Description DW+2/006/-...
  • Page 101 14. Accessories 14.1.7 Dimension Sketch Connection Connection Connection Connection Connection Connection Connection Connection DW+ PUMP INSTRUCTION MANUAL | 101...
  • Page 102 14. Accessories Pump model RG ISO 228-1 DW+1/003/- 60.0 38.0 132.0 90.0 23.3 34.0 82.0 75.0 44.5 1/16” RG3/8” Ø DW+1/004/- 67.0 38.0 132.0 90.0 23.3 34.0 82.0 75.0 44.5 1/16” RG3/8” Ø DW+1/007/- 66.1 37.1 132.0 90.0 23.3 34.0 82.0 77.0 44.5...
  • Page 103 14. Accessories 14.2. Rectangular Inlet This is an appendix manual and applies only with rectangular inlet. The DW+ pump fitted with the rectangular inlet must be put into operation or serviced only if one has read and understood the complete DW+ pump instruction manual. 14.2.1 Spare Parts Part No.
  • Page 104 381857 ISS A 04.2008 14. Accessories Pumpe komplet / Pump complete 8.4.2 Målskitse - rektangulært indløb / Dimensions sketch - rectangular inlet 14.2.2 Dimension Sketch 381857 ISS A 04.2008 Pumpe komplet / Pump complete 8.4.2 Målskitse - rektangulært indløb / Dimensions sketch - rectangular inlet 104 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 105 14. Accessories Pump model M (*) Area (mm ) O-ring (d1 x d2) 381895 ISS C 03.2006 DW+1/003/- 43.4 67.4 M6 x 25 (4) 36.2 x 3.0 Ø 8.3.1 Assembly instructions for relief valve DW+1/004/- 43.4 67.4 M6 x 25 (4) 36.2 x 3.0 Ø...
  • Page 106 14. Accessories Adjust the opening pressure as follows: 1. You must have a pressure gauge mounted on the pressure side so you can observe the changes in pressure. 2. There must be a valve on the pressure side that can be closed to make the pressure rise.
  • Page 107 14. Accessories 14.3.2 Spare Parts Overtryksventil - Standard Overtryksventil - Standard med tilbagemelder Relief Valve - Standard Relief Valve - Standard with Microswitch feed back signal Relief valve - standard Relief valve - standard with microswitch feedback signal DW+ PUMP INSTRUCTION MANUAL | 107...
  • Page 108 14. Accessories DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. ¤1 AISI 316L Front cover - Piston LA1115 LA1115 LA1115 LA1115 LA1115 AISI 316L Front cover - Lobe LA1115 LA1115 LA1115 LA1115 LA1115 ¤2 AISI 316L Valve piston - Piston LA1106101 LA1106201 LA1106301...
  • Page 109 14. Accessories Overtryksventil - Pneumatisk Overtryksventil - Pneumatisk med tilbagemelder Relief Valve - Pneumatic Relief Valve - Pneumatic with Microswitch Relief valve - pneumatic Relief valve - pneumatic with feed back signal microswitch feedback signal DW+ PUMP INSTRUCTION MANUAL | 109...
  • Page 110 14. Accessories DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Material Description Part No. ¤ 1 AISI 316L Front cover - Piston LA1115101 LA1115201 LA1115301 LA1115401 LA1115501 AISI 316L Front cover - Lobe LA1115100 LA1115200 LA1115300 LA1115400 LA1115500 ¤ 2 AISI 316L Valve piston - Piston LA1106101 LA1106201...
  • Page 111 14. Accessories Relief valve - manual Relief valve - manual with microswitch feedback signal Overtryksventil - Håndbetjent Overtryksventil - Håndbetjent med tilbagemelder Relief Valve - Manual Relief Valve - Manual with Microswitch feed back signal DW+ PUMP INSTRUCTION MANUAL | 111...
  • Page 112 14. Accessories DW+1 DW+2 DW+3 DW+4 DW+5 Pos. Qty Material Description Part No. ¤ 1 AISI 316L Front cover - Piston LA1115101 LA1115201 LA1115301 LA1115401 LA1115501 AISI 316L Front cover - Lobe LA1115100 LA1115200 LA1115300 LA1115400 LA1115500 ¤ 2 AISI 316L Valve piston - Piston LA1106101 LA1106201...
  • Page 113 14. Accessories DW+1 DW+2 DW+3 DW+4 DW+5 Description Part No. Material Complete relief valve - standard - Piston EPDM LA2000141 LA2000241 LA2000341 LA2000441 LA2000541 Complete relief valve - standard - Piston LA2000121 LA2000221 LA2000321 LA2000421 LA2000521 Complete relief valve - standard - Lobe EPDM LA2000140 LA2000240 LA2000340 LA2000440 LA2000540 Complete relief valve - standard - Lobe LA2000120 LA2000220 LA2000320 LA2000420 LA2000520...
  • Page 114 14. Accessories 453325 ISS S 03.2006 8.3.3 Målskitse for overtryksventil / Dimension sketch for relief valve 14.3.3 Dimension Sketch 453325 ISS S 03.2006 8.3.3 Målskitse for overtryksventil / Dimension sketch for relief valve Pneumatisk Pneumatic Pneumatic 453325 ISS S 03.2006 Pneumatisk 8.3.3 Målskitse for overtryksventil / Dimension sketch for relief valve...
  • Page 115 14. Accessories 453325 ISS S 03.2006 8.3.3 Målskitse for overtryksventil / Dimension sketch for relief valve Standard / Håndbetjent Standard/manual med tilbagemelder with microswitch feedback signal Standard / Manual with microswitch feed back signal A-Max A-min DW+1 62.8 DW+2 62.8 Pneumatic DW+3 62.8...
  • Page 116 14. Accessories 14.4. Electropolished This is an appendix manual and applies only with electropolished pump. The electropolished DW+ pump must be put into operation or serviced only if one has read and understood the complete DW+ pump instruction manual. 14.4.1 Spare Parts 116 | DW+ PUMP INSTRUCTION MANUAL...
  • Page 117 14. Accessories Piston Lobe Lobe Lobe Lobe DW+1/003/7.5 DW+1/004/15 DW+1/007/7 DW+1/007/15_600 Pos. Qty Material Description Part No. AISI 316L Front cover standard LA1110101EL LA1110100EL LA1110100EL LA1110100EL AISI 316L Front cover thermal jacket LA1101110EL LA1101111EL LA1101111EL LA1101111EL AISI 316L Front cover relief valve LA1115101EL LA1115100EL LA1115100EL...
  • Page 118 14. Accessories Piston Lobe Lobe Lobe Lobe Lobe DW+4/033/10 DW+4/039/20 DW+4/073/10 DW+4/073/15_600 DW+4/125/5 DW+4/125/7_600 Pos. Qty Material Description Part No. AISI 316L Front cover standard LA1110401EL LA1110400EL LA1110400EL LA1110400EL LA1110400EL LA1110400EL AISI 316L Front cover thermal jacket LA1101410EL LA1101411EL LA1101411EL LA1101411EL LA1101411EL LA1101411EL...
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  • Page 120 Positive Displacement Pump Original Instructions Models: DW+1-5 SPX Flow Technology Poland sp. z o.o. Rolbieskiego 2 85-862 Bydgoszcz Poland www.spxflow.com Improvements and research are continuous at SPX FLOW, Inc. Specifications may change without notice. ISSUED 01/2025 Form No.: PL8500013 Copyright ©2025 SPX FLOW, Inc.

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