Davey VM Series User manual

Please pass on these instructions to the operator of this equipment.

VM Series

Vertical Multistage

Centrifugal Pump (50 & 60Hz)

Installation and Operating

Instructions

Tested in compliance with

for use in contact with safe drinking water

Contents:

1. APPLICATIONS............................................................................................................................................3

2. IDENTIFICATION OF THE PUMP ...............................................................................................................4

3. STRUCTURE ................................................................................................................................................7

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

Please read instructions carefully before installing and operating the pump

1. APPLICATIONS

Davey’s latest range of high efciency, non self priming vertical multistage pumps provide low noise, small

footprint, very reliable as well as being easy to service and suit a wide number of applications.

1.1 Applications

Davey VMC pumps are designed for use with low viscosity, non amable, non explosive liquids that are free

from solids and bers. Please consult your Davey dealer for specic application needs.

Boiler feeding and condensation system;

Water treatment, inltration, ltration system

Food, beverage industry;

High building water supply;

Fire ghting system;

Industrial cleaning system;

Liquid transferring, circulating, boosting;

Hot water, cold water;

Irrigation applications.

1.2 Working conditions

Liquid temperature: -15ºC to +120ºC;

Flow rate range: 0.5-240m3/h;

Liquid pH range: pH- 0-14;

Max. ambient temperature: +40ºC;

Max. altitude: 1000m;

Min inlet pressure: Refer to NPSH curve;

Max. working pressure: See table 1A & table 1B.

When the specic 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

VM 32 - 2AM3

Motor tted

M1 = Single phase

M3 = Three phase

ML = Liquid end

Impeller variation

(A = turndown)

VM Series Vertical Multistage

Stainless Steel Pump

Number of stages

Nominal capacity at BEP in m3/hr

VM 20 - 5M3 - 316

316L stainless steel

Motor tted

M1 = Single phase

M3 = Three phase

ML = Liquid end

VM Series Vertical Multistage

Stainless Steel Pump

Number of stages

Nominal capacity at BEP in m3/hr

Allowed maximum working pressure for the pump 50Hz

Model Max. working pressure

(bar)

VM1,3,5,10,15,20 Flange, pipe thread 25

VM32

VM32-1A to VM32-6B 16

VM32-6 to VM32-10B 30

VM42

VM42-1A to VM42-4B 16

VM42-4 to VM42-6 25

VM42-7B to VM42-7 30

VM65

VM65-1A to VM65-3 16

VM65-4B to VM65-52 25

VM90

VM90-1A to VM90-3B 16

VM90-3A to VM90-4B 25

VM120, 150, 200

VM120, 150, 200 20

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.

The pump head, inlet and outlet chamber are made from precision cast stainless steel.

Drawing 1-A VM1,3

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. Nut M12

8a. Washer 12

9. Screw

10. Circlip cover

20. Flange

21. Retaining ring

22. Supporting washer

23. Nut M8-LH

24. Impeller washer

25. Staybolt

26a. lnlet&outlet chamber-Flange type

26d. lnlet&outlet chamber-pipe thread type

28. Drain screw M10

29. Drain plug

30. O-ring 136. 5X3. 3

31. Y ring

33. Sleeve for support diffuser

34. Mechanical seal

36. Air vent plug

37. O-ring16X2.8

38. Air vent screw

39. Bolt, washer

40. Motor

47. lmpeller sleeve 9.6X12.6

47a. Bearing

49. Impeller

50a. Top diffuser

51. Shaft

55. Cylinder

60. Corrugated spring

63. O-ring retainer

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. Nut M12

8a. Washer 12

9. Screw

10. Circlip cover

20. Flange

21. Retaining ring

22. Supporting washer

23. Nut M8-LH

24. Impeller washer

25. Staybolt

26a. lnlet&outlet chamber-Flange type

26d. lnlet&outlet chamber-pipe thread type

28. Drain screw M10

29. Drain plug

30. O-ring 136. 5X3. 3

31. Y ring

33. Sleeve for support diffuser

34. Mechanical seal

36. Air vent plug

37. O-ring16X2.8

38. Air vent screw

39. Bolt, washer

40. Motor

47. lmpeller sleeve 9.6X12.6

47a. Bearing

49. Impeller

50a. Top diffuser

51. Shaft

55. Cylinder

60. Corrugated spring

63. O-ring retainer

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. Washer 16

9. Screw

10. Circlip cover

14. Strap

17. Impeller sleeve 29X17.4

20. Flange

21. Retaining ring

22. Supporting washer

23. Nut M10-LH

24. Impeller washer

25. Staybolt

26a. lnlet&outlet chamber-Flange type

26d. lnlet&outlet chamber-pipe thread type

28. Drain screw

29. Drain plug

30. O-ring 15X3. 3

31. Y ring

33. Sleeve for support diffuser

34. Mechanical seal

36. Air vent plug

37. O-ring 16X2.8

38. Air vent screw

39. Bolt, washer

40. Motor

46. Adjusting rubber

47a. Bearing

49. Impeller

50a. Top diffuser

51. Shaft

55. Cylinder

60. Corrugated spring

63. O-ring retainer

65. Screw M8X20

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. Washer 16

9. Screw

10. Circlip cover

14. Strap

17. Impeller sleeve

20. Flange

21. Retaining ring

22. Supporting washer

23. Nut M10-LH

24. Impeller washer

25. Staybolt

26a. lnlet&outlet chamber-Flange type

26d. lnlet&outlet chamber-pipe thread type

28. Drain screw

29. Drain plug

30. O-ring 16X3. 3

31. Y ring

33. Sleeve for support diffuser

33b. Long sleeve for support diffuser

34. Mechanical seal

36. Air vent plug

37. O-ring 16X2.8

38. Air vent screw

39. Bolt, washer

40. Motor

46. Adjusting rubber

47a. Bearing

49. Impeller

50a. Top diffuser

51. Shaft

55. Cylinder

63. O-ring retainer

65. Screw M8X20, washer X8

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. Baseplate

7. Bracket

8. Hex socket head screw

9. Hex socket head screw

10. Seal cover

11. Nut

11a. Flat washer

13. Hex socket head screw

13a. Flat washer

14. Strap

15. Impeller nut

15a. Impeller nut for support diffuser

(Not for 1 or 2 stage pumps)

16. Cone

17. Intermediate bearing

(Not for 1 or 2 stage pumps)

18. Cover

19. Flat washer

19a. Hex socket head screw

20a. Flange

25. Staybolt

26h. Inlet & outlet chamber CDLF type

26b. Inlet & outlet chamber CDL type

28. Drainage screw

29. Screw

30. O-ring

34. Mechanical seal

36. Air vent nut

37. O-ring

38. Air vent screw

39. Screw

39a. Nut

39b. Washer

40. Motor

44. Washer

45. Hex socket head screw

46. Adjusting rubber

47. Bottom bearing

47a. Bottom sleeve

49. Small impeller

49a. Impeller

49b. Ring for neck ring

50a. Top diffuser

51. Shaft

55. Cylinder

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