Related Manuals for Grundfos DWK Series
Summary of Contents for Grundfos DWK Series
- Page 1 GRUNDFOS INSTRUCTIONS DWK and DPK DWK 0.75 - 90 kW, 50/60 Hz, 1/3~ DPK 0.75 - 22 kW, 50/60 Hz, 1/3~ Service instructions...
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Page 2: Table Of Contents
English (GB) Service instructions Original service instructions 2. Identification The nameplate is fitted to the top cover of the pump. Fix the extra CONTENTS nameplate supplied with the pump at the installation site or keep it in the cover of this booklet. Page Symbols used in this document 2.1 Nameplate... -
Page 3: Type Key, Dwk
2.2 Type key, DWK Example Dewatering pump Impeller Semi-open impeller Enclosed impeller Strainer hole size Maximum solids size [mm] Pump discharge Nominal diameter of pump discharge port [mm] Code for output power, P2 P2* = Code number from type designation / 10 [kW] Equipment Standard With extra sensor (only for 0.75 to 3.7 kW) -
Page 4: Tightening Torques
3. Tightening torques Position numbers (refer to figures in sections 5. Dismantling Assembly). Torque Pos. Pump type Designation Dimension Lubricant [Nm] O-rings Rocol 25 ± 2 Screw 30 ± 2 Screw 20 ± 2 Screw 30 ± 2 50 ± 5 DPK.V Screw 75 ±... -
Page 5: Service Tools
4. Service tools 4.1 Standard tools Pos. Description For pos. Further information Part number Multigrip pliers SV0150 10 mm SV0083 13 mm SV0055 Ring/open-end spanner 17 mm SV0056 19 mm SV0063 24 mm SV0122 Ratchet handle 96777072 17 mm SV0417 19 mm SV0419 Hexagon socket... -
Page 6: Dismantling
5. Dismantling 5.2 Oil change After 3000 operating hours or once a year, change the oil in the 5.1 General information oil chamber as described below. If the pump needs to be dismantled, either because it is choked If the shaft seal has been changed, the oil must be changed as or damaged, please follow the instructions in the following well. -
Page 7: Removing Impeller And Pump Housing
5. Add the appropriate quantity of oil to the specific pump. See 5.3 Removing impeller and pump housing table below. DWK-O Shaft power Pump type No. of poles Oil capacity [l] [kW] 0.75 0.52 1.04 DWK.O 2 pole 2.15 3.00 DWK.E 2 pole 6.10... -
Page 8: Removing Shaft Seals
5.4 Removing shaft seals 105c 105f 105g 105e 105c 105d Removing the shaft seal and bearings Fig. 4 1. Drain oil from oil chamber. See section 5.2 Oil change. 2. Remove impeller and pump housing. See section 5.3 Removing impeller and pump housing. -
Page 9: Removing Cable 9 Fig
5.6 Removing cable 168a 168a Cable entries Fig. 5 1. Disconnect the power supply to the motor. 2. Remove top cover (pos. 151). 3. Disconnect power and signal conductors from top cover. 4. Remove cover for cable entry (pos. 168). 5. -
Page 10: Assembly
6. Assembly 6.2 Fitting cable 1. Fit cable in top cover (pos. 151). 6.1 Fitting stator 2. Fit and lubricate O-ring (pos. 37) on top cover (pos. 151). See section 3. Tightening torques. 3. Connect power and signal conductors to top cover. See figs to 10. - Page 11 Wiring diagrams Wiring diagram, DOL starting Fig. 9 L1 L2 L3 S / S MCCB F / L F / L MCCB O P . T R T / P T / P S / S S / S GU 01 / GU 02 U1 V1 W1 W2 U2 V2 T / P T / P S / S S / S...
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Page 12: Fitting Bearings
6.3 Fitting bearings 60a 60b 59 153 102 60 Fig. 11 Fitting bearings 1. Fit upper bearing (pos. 154) on shaft. Caution Only press on the inner bearing ring. 2. Fit bearing cover (pos. 59) on shaft. 3. Fit lower bearing (pos. 153) on shaft. Some pump models have two lower bearings (pos. -
Page 13: Fitting Impeller And Pump Housing
6.5 Fitting impeller and pump housing Fig. 13 Impeller and pump housing assembly and impeller clearance 1. Fit and lubricate O-ring (pos. 37 or 39) on pump housing (pos. 50). 2. Fit pump housing (pos. 50) and tighten screws (pos. 184) according to torques in table in section 3. -
Page 14: Fault Finding
7. Fault finding Warning Before starting work on the pump, make sure that the fuses have been removed or the mains switch has been switched to off. It must be ensured that the power supply cannot be accidentally switched on. All rotating parts must have stopped moving. -
Page 15: Components And Material Specification
8. Components and material specification Pos. Designation Material The position numbers in the table below refer to the sectional ASTM drawings on the following pages. Lower bearing Pos. Designation Material 153a Upper bearing ASTM 154a Cover STS410 ANSI 410 17440 Shaft seal housing GC200 A48-CL30... -
Page 16: Dwk.o.6.50.075, Dwk.o.6.50.15 And Dwk
8.1 DWK.O.6.50.075, DWK.O.6.50.15 and DWK.O.6.50.22... -
Page 17: Dwk.o.6.80.15, Dwk.o.6.80.22, Dwk
8.2 DWK.O.6.80.15, DWK.O.6.80.22, DWK.O.10.80.37 and DWK.O.10.100.37... - Page 18 8.3 DWK.O.13.80.55, DWK.O.13.100.55, DWK.O.13.100.75, DWK.O.13.100.110, DWK.O.13.100.150 and DWK.O.13.150.150...
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Page 19: Dwk.e.10.100.220, Dwk.e.10.150.220, Dwk.e.10.150.300, Dwk.e.10.200.300
8.4 DWK.E.10.100.220, DWK.E.10.150.220, DWK.E.10.150.300, DWK.E.10.200.300... -
Page 20: Dwk.e.10.150.370, Dwk.e.10.150.450
8.5 DWK.E.10.150.370, DWK.E.10.150.450, DWK.E.10.200.370, DWK.E.10.200.450, DWK.E.10.150.550, DWK.E.10.200.550... -
Page 21: Dwk.e.10.200.750, Dwk.e.10.200.900
8.6 DWK.E.10.200.750, DWK.E.10.200.900... -
Page 22: Dpk.10.50.075, Dpk.10.50.15 And Dpk.10.80.22
8.7 DPK.10.50.075, DPK.10.50.15 and DPK.10.80.22... -
Page 23: Dpk.20.100.110 And Dpk.20.100.150
8.8 DPK.15.80.37, DPK.15.80.55, DPK.15.100.75, DPK.20.100.110 and DPK.20.100.150... -
Page 24: Dpk.20.150.190 And Dpk.20.150.220
8.9 DPK.20.150.190 and DPK.20.150.220... -
Page 25: Dpk.v.65.80.15.2 And Dpk
8.10 DPK.V.65.80.15.2 and DPK.V.65.80.22.2... -
Page 26: Dpk
8.11 DPK.V.80.80.37.2... -
Page 27: Dpk.v.80.80.55.2 And Dpk
8.12 DPK.V.80.80.55.2 and DPK.V.80.80.75.2... -
Page 28: Dpk.v.65.80.15.4 And Dpk
8.13 DPK.V.65.80.15.4 and DPK.V.65.80.22.4... -
Page 29: Dpk.v.80.80.37.4, Dpk.v.80.80.55.4 And Dpk
8.14 DPK.V.80.80.37.4, DPK.V.80.80.55.4 and DPK.V.80.80.75.4 Subject to alterations. - Page 31 Unit 1, Ground floor Telefax: +64-9-415 3250 Turkey «Порт» Siu Wai Industrial Centre GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Тел.: +7 (375 17) 286 39 72/73 29-33 Wing Hong Street & Norway Gebze Organize Sanayi Bölgesi Факс: +7 (375 17) 286 39 71...
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