Davey VM Series Installation And Operating Instructions Manual
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Davey VM Series Installation And Operating Instructions Manual

Vertical multistage centrifugal pump 50 & 60hz
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VM Series
Vertical Multistage
Centrifugal Pump (50 & 60Hz)
Installation and Operating
Instructions
Tested in compliance with
for use in contact with safe drinking water
Please pass on these instructions to the operator of this equipment.

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Summary of Contents for Davey VM Series

  • Page 1 VM Series Vertical Multistage Centrifugal Pump (50 & 60Hz) Installation and Operating Instructions Tested in compliance with for use in contact with safe drinking water Please pass on these instructions to the operator of this equipment.

  • Page 2: Table Of Contents

    4. INSTALLATION INSTRUCTIONS ....................... 13 5. STARTING AND MAINTENANCE ......................14 6. DISMANTLING AND ASSEMBLY ......................15 7. ORDER OF ASSEMBLY FOR DIFFUSERS AND IMPELLERS ..............19 8. FAULT FINDING ............................27 9. IMPORTANT NOTICE ..........................27 DAVEY WARRANTY ............................28...

  • Page 3: Applications

    1.1 Applications Davey VMC pumps are designed for use with low viscosity, non flamable, non explosive liquids that are free from solids and fibers. Please consult your Davey dealer for specific application needs.

  • Page 4: Identification Of The Pump

    When the specific gravity or viscosity of the pumped liquid is different than water, the shaft power of the pump will be increased. A larger motor will need to be selected. Please contact your Davey representative for more details. 2. IDENTIFICATION OF THE PUMP...
  • Page 5 Allowed maximum working pressure for the pump 50Hz Max. working pressure Model (bar) VM1,3,5,10,15,20 Flange, pipe thread VM32 VM32-1A to VM32-6B VM32-6 to VM32-10B VM42 VM42-1A to VM42-4B VM42-4 to VM42-6 VM42-7B to VM42-7 VM65 VM65-1A to VM65-3 VM65-4B to VM65-52 VM90 VM90-1A to VM90-3B VM90-3A to VM90-4B...

  • Page 6: Structure

    3. STRUCTURE • Davey VMC pumps main components are: motor, pump head, diffusers, impellers, cylinder, inlet and outlet chamber, shaft, mechanical seal,etc. See drawing 1. • The pump key components such as diffusers, impellers, cylinder and shaft are made of stainless steel.
  • Page 7 Drawing 1-B VM5 1a. Coupling guard-left 1b. Coupling guard-right 2. Screw, washer 3. Pump head 3a. Lining 4. Diffuser 4a. Support diffuser 4b. Neck ring cover 4c.Neck ring 5. Coupling 5a. Inducer 6. Baseplate-Flange type 6a. Baseplate-cutting ferrule type 7. Shaft pin 8.
  • Page 8 Drawing 1-C VM10 1a. Coupling guard-left 1b. Coupling guard-right 2. Screw, washer 3. Pump head 3a. Lining 4. Diffuser 4a. Support diffuser 4b. Neck ring cover 4c.Neck ring 5. Coupling 5a. Inducer 6. Baseplate 7. Shaft pin 8. Nut M16 8a.
  • Page 9 Drawing 1-D VM15,20 1a. Coupling guard-left 1b. Coupling guard-right 2. Screw, washer 3. Pump head 3a. Lining 4. Diffuser 4a. Support diffuser 4b. Neck ring cover 4c.Neck ring 5. Coupling 5a. Inducer 6. Baseplate 7. Shaft pin 8. Nut M16 8a.
  • Page 10 Drawing 1-E VM32,42,65,90 1. Coupling guard 2. Hex socket head screw 3. Pump head 4. Diffuser (Not for 1 stage pump) 4a. Support diffuser (Not for 1 or 2 stage pumps) 4b. Neck ring base assembly 5. Coupling 5a. Inducer 6.
  • Page 11 Drawing 1-F VM120,150,200 1. Coupling guard 2. Hex socket head screw 3. Pump head 4. Diffuser (Not for 1 stage pump) 4a. Support diffuser (Not for 1 or 2 stage pumps) 4b. Neck ring cover 4c. Neck ring 4d. Screw 5.

  • Page 12: Installation Instructions

    • A check valve must be installed on the discharge pipelines. • Please install you Davey VMC pump on a solid, flat and level base to minimise any operational movement. Please ensure all pipe work is supported as not to place undue stress on the pump / pipe connections.

  • Page 13: Starting And Maintenance

    5. STARTING AND MAINTENANCE Before starting, read the warning sticker carefully on the pump sleeve. Before commencing any works on the pump please ensure the system pressure has been relieved and the pump has been isolated from flow. Before removing the terminal box cover and before removing/dismantling the pump, make sure that the electricity supply has been switched off.

  • Page 14: Dismantling And Assembly

    6. DISMANTLING AND ASSEMBLY 1. Summary If it is necessary to dismantle the pump because of failure, please follow the instructions below. Refer to drawing 1 to see pump structure. 1.1 Before dismantling • Disconnect the electricity supply to the motor. •...
  • Page 15 3.1.2 VM32-VM200 • Remove the motor(no need for power >5.5kw) and coupling, refer to 2.1 dismantling. • Remove seal cover(pos.10) and four screws (pos.11). • Slacken 3 screws of mechanical seals(pos.34) by about a quarter turn to make the mechanical seal fall off the shaft (pos.51).
  • Page 16 4.1.3 VM120,150,200 • Remove mechanical sea,refer to 3.1 dismantling. • Remove screws (pos.12 no this step for power >45kw pumps) • Remove nut and washer (pos.8, Ba, no this step for power: 545kw pumps). • Remove bracket (pos.7) • Remove nut and washer (pos.88a) •...
  • Page 17 Drawing 3 & 4 5.4 Dismantling and assembly of diffuser stack for VM120, 150, 200 5.4.1 Dismantling • Remove the diffuser stack.refer to 4.1 Dismantling. • Remove screw and washer(pos.65). • Remove straps (pos.14) and inducer (pos.5a) • Remove top diffuser (pos.50a) diffuser (pos.4) impeller nut (pos.15) impeller (pos.49 49a) impeller sleeve(pos.16) support diffuser (pos.4a).

  • Page 18: Order Of Assembly For Diffusers And Impellers

    7. ORDER OF ASSEMBLY FOR DIFFUSERS AND IMPELLERS 1. See drawing 5-A for assembling order of VM1, 3. Symbol information Drawing 5-A VM1, 3 assembling order.
  • Page 19 2. See drawing 5-B for assembling order of VM5. Symbol information Drawing 5-B VM5 assembling order.
  • Page 20 3. See drawing 5-C for assembling order of VM10. Symbol information Drawing 5-C VM10 assembling order.
  • Page 21 4. See drawing 5-D for assembling order of VM15, 20. Symbol information Drawing 5-D VM15, 20 assembling order.
  • Page 22 5. See drawing 5-E for assembling order of VM32. Symbol information Drawing 5-E VM32 assembling order.
  • Page 23 6. See drawing 5-F for assembling order of VM42. Symbol information Drawing 5-F VM42 assembling order.
  • Page 24 7. See drawing 5-G for assembling order of VM65. Symbol information Drawing 5-G VM65 assembling order.
  • Page 25 8. See drawing 5-H for assembling order of VM90. Symbol information Drawing 5-H VM90 assembling order.

  • Page 26: Fault Finding

    8. FAULT FINDING Before removing the terminal box cover, make sure that the power supply has been switched off. Fault Cause Solution a) Check power supply. a) Power supply failure. b) Replace fuses. b) Fuses are blown. c) Check pump system. c) Motor overloaded.
  • Page 27 NOTES...

  • Page 28: Davey Warranty

    To the fullest extent permitted by law Davey disclaims any warranties regarding the accuracy, completeness or reliability of App data. Davey is not responsible for any direct or indirect loss, damage or costs to the User arising from its reliance on internet connectivity.

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