Pentair BVM32 Series User manual

OWNER'S MANUAL
BVM32 Series
Vertical Multistage Pumps
© 2013 Pentair, Ltd. All Rights Reserved. BE780 (Rev. 02/12/13)
269 TRILLIUM DRIVE, KITCHENER, ONTARIO, CANADA N2G 4W5
PH: 888-363-7867
293 WRIGHT STREET, DELAVAN, WI 53115 WWW.BERKELEYPUMPS.COM
PH: 888-237-5353
INSTALLATION AND OPERATING INSTRUCTIONS
Single and Three Phase 60 Cycle
Record the following information from the motor and pump
nameplates for future reference:
Pump Model No.
Bill of Material No.
Motor Model No.
Motor Serial No.
H.P. Volts/Hz/Ph
Rated Amp Draw
5006 0405 ASB

TABLE OF CONTENTS
Safety Instructions .............................................................2
Applications, Operating Ranges and Specifications...........3
Installation .....................................................................4-5
Electrical ...........................................................................5
Operation.......................................................................5-7
Maintenance ................................................................8-14
Troubleshooting Guide ...................................................15
Warranty .........................................................................15
Repair Parts .....................................................................16
Carefully read and follow all safety instructions
in this manual or on pump.
This is the safety-alert. When you see this symbol on
your pump or in this manual, look for one of the
following signal words and be alert to the potential for
personal injury.
warns about hazards that will cause serious
personal injury, death or major property damage if ignored.
warns about hazards that can cause serious
personal injury, death or major property damage if ignored.
warns about hazards that will or can cause
minor personal injury or property damage if ignored.
The word NOTICE indicates special instructions which are
important but not related to hazards.
Hazardous pressure and temperature. Risk of
explosion or seal failure if operating pressure or temperature
limits are exceeded.
To avoid serious or fatal personal injury and possible
property damage, carefully read and follow the safety
instructions.
1. Install pump according to all code requirements.
2. Compare pump nameplate data with desired operating
range.
3. Pump only liquids that are compatible with pump
component materials (that is, that will not attack the
pump). For liquids other than water, consult chemical
compatability charts.
4. If in any doubt about chemical compatability with the
pump, consult the factory for further information.
5. Do not pump strong acids or caustics with this pump.
6. Make sure plumbing is adequate to handle system
pressure.
7. Periodically perform maintenance inspection on pump
and system components.
8. Wear safety glasses at all times when working on pumps.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause cancer,
birth defects or other reproductive harm.
INSPECT THE SHIPMENT
The vertical multistage centrifugal inline pump has been
carefully inspected and packaged to assure safe delivery.
Inspect the pump and fittings and report to the carrier any
items which are damaged or missing.
CONFIRM THAT YOU
HAVE THE RIGHT PUMP
2
BVM32-8-2
Berkeley Vertical
Multistage Pump
Nominal flow rate in m3/hr
(multiply by 4.4 to get GPM)
Number of stages
Number of reduced diameter impellers
4180 0502 32
MODEL #
GPM
HP
PART #
FEET
PRESS.
MAX (PSI)
MFG. DATE
RPM
TEMP. MAX (F)
BERKELEY PUMPS, GRAND ISLAND, NE 68801
FIGURE 1 - Model Plate Information

3
APPLICATIONS AND
OPERATING RANGES
Berkeley multistage in-line centrifugal pumps are designed
for liquid transfer, circulation, and pressure boosting of hot
or cold clean water or other thin, non-explosive liquids,
not containing solid particles or fibers, which will not
chemically attack the pump materials.
Typical applications include:
• Municipalwatersupplyandpressureboosting
• Boilerfeedandcondensatesystems
• Coolingwatersystems
• Irrigation
• Firefighting
BVM32 SPECIFICATIONS
Maximum Operating Temperature ............................250°F
Liquid Temperature Range ........................+5°Fto+250°F
Minimum Suction Pipe Size ........ 2-1/2"Nominal Diameter
Minimum Pumping Rate:
Upto175°F .......................................................15 GPM
175°Fto250°F..................................................35 GPM
Maximum Ambient Temperature...................104°F(40°C)
Liquid Temperature Range .............................5°Fto250°F
(-15°Cto+121°C)
Maximum Permissible Operating Pressure .............. 435 psi
NOTE: The pump’s inlet pressure plus the discharge
pressure when the pump is running against a closed
valve must always be lower than the “Maximum
Permissible Operating Pressure”.
Electrical Data:..................................See Motor Nameplate
Dimensions and
Port to Port Lengths : ..................... SeeFigure2andTableI
BVM32 DIMENSIONS
E
B
D
A
C
4-1/8
12-5/8
9-7/16"
11-1/16"
F
4957 0405
FIGURE 2 - Height, width and baseplate dimensions for BVM32
Series pumps
* Measurements represent the largest number possible for each Model.
TABLE I – Maximum Height and Width Dimensions*
Model Dimension in Inches
Number A B C D E F
BVM32-1-1 22-3/4 13-5/8 6-7/8 2-7/8 39-1/4 8-1/2
BVM32-1 22-3/4 15-1/4 8 3-3/8 41-3/8 10-5/8
BVM32-2-2 27-1/2 15-1/4 8 3-3/8 46-1/8 10-5/8
BVM32-2-1 27-1/2 15-1/4 8 3-3/8 46-1/8 10-5/8
BVM32-2 27-1/2 15-1/4 8 3-3/8 46-1/8 10-5/8
BVM32-3-2 30-1/4 16-3/8 8-3/4 3-3/8 50 10-5/8
BVM32-3 30-1/4 19-5/8 9-1/2 4-1/4 54-1/8 13
BVM32-4-2 33 19-5/8 9-1/2 4-1/4 56-7/8 13
BVM32-4 33 19-5/8 9-1/2 4-1/4 56-7/8 13
BVM32-5-2 35-3/4 21-3/4 9-1/8 4 61-1/2 11-1/2
BVM32-5 35-3/4 21-3/4 9-1/8 4 61-1/2 11-1/2
BVM32-6-2 38-1/2 21-3/4 9-1/8 3-1/4 63-1/2 13
BVM32-6 38-1/2 21-3/4 9-1/8 3-1/4 63-1/2 13
BVM32-7-2 41-1/4 21-3/4 9-1/8 3-1/4 66-1/4 13
BVM32-7 41-1/4 23 13-1/8 3-1/4 67-7/16 14-7/8
BVM32-8-2 44 23 13-1/8 3-1/4 70-1/4 14-7/8
BVM32-8 44 23 13-1/8 3-1/4 70-1/4 14-7/8
BVM32-9-2 46-3/4 23 13-1/8 3-1/4 73 14-7/8
BVM32-9 46-3/4 23 13-1/8 3-1/4 73 14-7/8
BVM32-10-2 49-1/2 23 13-1/8 3-1/4 75-3/4 14-7/8
BVM32-10 49-1/2 23 13-1/8 3-1/4 75-3/4 14-7/8
BVM32-11-2 52-1/4 23 13-1/8 3-1/4 78-1/2 14-7/8

4
INSTALLATION
Hazardous voltage. Voltage can shock, burn,
or cause death. Ground pump motor correctly before
connecting to power supply, per article 250-80 of the
NationalElectricalCode(NEC)intheU.S.,ortheCanadian
ElectricalCode(CEC),asapplicable.
Location
Locate pump in a dry, well ventilated area, not subject to
freezing or extreme variations in temperature.
Mount pump a minimum of 6"from any obstruction or
hot surface. Install the pump with the motor shaft vertical.
Make sure that an adequate supply of cool air reaches the
motor cooling fan. Maximum ambient air temperature is
104°F(40°C).
Foropensystemsrequiringsuctionlift,locatethepumpas
close to the water source as possible.
Foundation
Foundation should be concrete or a similarly rigid
foundation to provide a secure, stable mounting base for
the pump.
Secure pump to foundation using all bolt holes. Refer to
Figure2forboltplatedimensions.Besurethatallfourpads
on the base are properly supported.
Shim pump base to make sure that pump is level.
Piping
Explosion and burn hazard. Do not run
pump with discharge valve closed; the water in the pump
may boil, with risk of explosion and steam burns to
anyone near. If there is any danger of the pump running
against a closed discharge valve, install a pressure relief or
by-pass valve in the discharge pipe to allow for minimum
liquid flow through the pump. Minimum liquid flow
through the pump is needed for cooling and lubrication
ofthe pump (SeeSpecifications,Page 3). Runthebypass/
relief valve and discharge pipe to a floor drain or a tank for
collection.
Suction pipe should be adequately sized (See
Specifications, Page 3) and run as straight and as short
as possible to keep friction losses to a minimum. Pipes,
valves, and fittings must have a pressure rating equal to or
greater than the maximum system pressure.
Pressure check the discharge piping as required by codes
or local regulations.
“Inlet” and “Outlet” are marked on the pump base to show
the direction of the liquid flow through the pump.
Install anti-vibration mountings on either side of the pump
if a minimum noise level is desired.
Install isolation valves in both inlet and outlet pipes near
thepump(see Figure3).Thisallowsforremovalofpump
for service without draining the system and isolation of the
pump in case of a flooded suction condition.
Install a check valve in the discharge pipe to prevent high
system pressure from backing up to the inlet side of the
pump. Excessive inlet pressure can cause the pump to
exceed its maximum permissable operating pressure.
Make sure, especially on the inlet side of the pump, that
therearenoairlocksinthesystem.SeeFigure4forcorrect
pipe work to avoid airlocks. The suction pipe should be
level or slightly rising.
FIGURE 3 - Bypass required if pump might operate with
discharge valve closed. See “BVM32 Specifications”, Page 3, for
minimum required flow through pump to prevent overheating
and to ensure lubrication.
4218 0702
Inlet Outlet
Nipple
Orifice
Bypass Line
12" Min.
to prevent
erosion
Isolation Valves
O.K.
3347 1198
O.K.
FIGURE 4 - Install Pipe Correctly to Prevent Air Locks

5
Support all piping independently of the pump so the weight
of the piping system does not strain the pump case. Make
sure that the expansion and contraction of the piping
system from temperature variations cannot put a strain on
the pump.
If the system or pump must be drained periodically
(especially if the discharge pipe is horizontal or slopes
downward away from the pump), install a loop and
vacuum valve as shown in Figure 5 to protect the pump
against running dry. The highest point of the loop should
be at least as high as the lowest point of the motor. This
loop/valve combination will allow the pump and the
system to be drained independently of one another.
ELECTRICAL
Hazardous voltage. Can shock, burn or
cause death. All electrical work should be performed by
a qualified electrician in accordance with the National
Electrical Code and all local codes and regulations. Make
sure that the motor voltage, phase, and frequency match
the incoming electrical supply. The proper operating
voltage and other electrical information can be found
on the motor nameplate. These motors are designed to
run up to ±10% of the nameplate-rated voltage. The
wiring connection diagram can be found on either a plate
attached to the motor or on a diagram inside the terminal
box cover.
• If voltage variations are greater than ±10% do not
operate the pump.
• Incorrectvoltagecancausefireorseriousdamagetothe
motor and voids warranty.
• Ground the pump motor correctly before connecting it
to the power supply.
• Follow the wiring instructions when connecting the
motor to the power lines.
Position of Terminal Box
To turn the motor so that the terminal box faces the right
direction, proceed as follows:
1. Disconnect the power to the pump motor.
2. Remove the coupling guards.
3. Remove the couplings.
4. Remove the bolts that fasten the motor to the motor
stool.
5.Turnthemotortotherequiredposition(inquarter-turn
increments).
6.Follow steps 10B and 14-19 under “Pump Reassembly
Sequence”, on Pages 12 and 13.
Field Wiring
All wiring connections and wiring sizes must meet National
Electrical Code and local requirements.
Motor Protection
See the motor nameplate for electrical connection/wiring
diagram.
Berkeley pumps must be used with the proper size and
type of motor starter to ensure protection against damage
from low voltage, phase failure, current imbalances, and
overloads. The overload should be sized to trip at the full-
load current rating of the motor.
OPERATION
Priming
Hazardous pressure. Do not run the pump
with the discharge valve closed; the water in the pump may
boil, causing risk of explosion and steam burns to anyone
nearby.
Hazardous voltage. Disconnect all power to
the pump before servicing or working on the pump. Make
sure that the power is locked out and that the pump cannot
be accidentally started.
NOTICE: Under no circumstances should the pump be
operated without flow through the pump. Never operate
the pump dry.
Operation of closed systems or open systems with the
liquid level above the pump priming plug:
3346 1198
Vacuum Valve
FIGURE 5 - Loop and Vacuum Valve Installation
Vented
Priming
Plug
Drain
Plugs
Back off needle valve
to vent air. Retighten
when vent port runs
a steady stream
of water.
FIGURE 6 - Priming and Drain Plugs

6
1. Close the discharge isolating valve and loosen the
needle valve located in the assembly in the pump head
(Figure6,Page5).Donotremovetheneedlevalve.
Risk of water damage and injury. Watch the
direction of the priming plug and make sure that the liquid
escaping from it does not injure persons nearby or damage
the motor or other components. In hot water installations,
pay particular attention to the risk of injury from scalding
hot water or steam.
2. Slowly open the isolation valve in the suction pipe until
a steady stream of liquid runs out the vent in the priming
port.
3. Tighten the needle valve in the vent plug. Completely open
isolation valves.
NOTICE: Please turn to “Starting”, at right, before
proceeding any further.
Operation of open systems with the liquid level below the
top of the pump:
NOTICE: The suction pipe requires a check valve or
isolation valve.
1. Close the discharge isolation valve.
2. Remove the vented priming plug.
3. Pour liquid through the priming port until the suction
pipe and the pump are completely filled with liquid.
4. Replace the vented priming plug and tighten it securely.
5. Repeat steps 1-4 until the pump is primed.
NOTICE: Please turn to “Starting”, at right, before
proceeding any further.
Checking Direction of Rotation
NOTICE: Do not disconnect the motor from the shaft to
check the direction of rotation. If you remove the coupling,
then you must adjust the shaft position when you reinstall
it. This must be done before starting the pump.
Arrows on the pump coupling show the correct direction of
rotation. When seen from the motor fan, the pump should
rotate counterclockwise ( ). For pump motors without
a fan remove one of the coupling guards and look at the
coupling to determine the direction of rotation. Turn off the
pump and replace coupling guard.
NOTICE: Do not check the direction of rotation until the
pump has been filled with liquid. See “Priming”, at left and
above.
1. Switch power off.
2. Remove the coupling guard and rotate the pump shaft to
be certain it can turn freely. Replace the coupling guard.
3. Verify that the electrical connections are in accordance
with the wiring diagram on the motor.
4. If the fan is visible, turn on and off to verify rotation.
5.Toreversethedirectionofrotation,firstswitchOFFthe
power supply.
6. On three-phase motors, switch 2 of the 3 power leads
on the load side of the starter. On single-phase motors,
see the connection diagram on the motor nameplate.
Change the wiring as indicated.
Hazardous voltage. Voltage can shock,
burn or cause death. Ground the pump motor correctly
before connecting to power supply per article 250-80 of
NationalElectricalCode(NEC)intheU.S.,ortheCanadian
ElectricalCode(CEC),asapplicable.
7. Switch on the power supply and recheck the direction of
motor rotation.
Starting
1. If a suction line isolation valve has been installed, check
to be sure that it is completely opened.
2.For initial starting, the isolation valve in the discharge
pipe should be almost closed.
3. Start the pump.
4. When the piping system has been filled with liquid,
slowly open the discharge isolation valve until it is
completely open. Opening the valve too fast may result
in water hammer in the discharge pipe. If the pump or
system start to rattle, the pump is cavitating; to avoid
damage to the pump, reduce the flow through the
discharge isolation valve until the rattling stops. If this
does not give adequate flow for your installation, call
your installer or system designer.
5. Record the voltage and amperage of the motor. Adjust
the motor overloads if required.
6. If pressure gauges have been installed, check and record
operating pressures.
7. Check all controls for proper operation.
Motor Bearings
For the greasing schedule and greasing procedure
of the motor bearings follow the motor manufacturers
recommendations.

7
Calculating Minimum Inlet Pressure:
Minimum inlet pressure is required to avoid cavitation in
the pump and is calculated as follows:
H = Pb - NPSHR - Hf- Hv- Hs
H=MinimumInletPressureinFeetofHead
Pb=BarometricPressureinFeet
1Bar=29.53inchesofMercury(Hg)
1PSI=2.31FtofHead
1Bar=33.5Ft.ofHead
NPSHR = Net Positive suction head required. To be read
from the NPSHR curve, Figure 7, at the highest flow the
pump will be delivering.
Hf=FrictionLossinsuctionpipeinftofhead
Hv=Vaporpressureinfeetofhead(SeeTableII).
Hs= A safety margin of 1.64 ft of head
Example for BVM32:
If:  Flow=145GPM
Pb = 1 Bar = 29.53 Inches of Mercury*
 (ConvertfromBartoFeetofHead)
1 Inch of mercury = 1.13’ feet of water
  T=100°F
  NPSHR=10’(SeeFigure7)
Hf= 10’ of 2-1/2"Steel Pipe @ 14.5’ of loss per
 100’ofPipe(Hf=14.5’/10=1.45’)
Hv=2.195’(fromTableII)
Hs=1.64’(safetyfactorfromabove)
Then: H = 33.5’* - NPSHR - Hf- Hv- Hs
H = 33.5’ - 10’ - 1.45’ - 2.195’ - 1.64 = 18.215’
H = 18.215’ = Minimum Inlet Pressure
*1Bar=14.5PSIx2.31FtofHead=33.5’
F
F
D
F
D
DB
F
D
D
D
D
D
DB
DB
F
D
D
D
D
D
D
DB
DB
F
D
D
D
D
D
D
D
DB
DB
F
D
D
D
D
D
D
D
D
DB
DB
F
D
D
DB
F
D
D
D
DB
F
D
D
D
D
DB
F
D
D
D
D
D
DB
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
1
2
3
4
1
2
Type DB and D Stages
Type DB and D Bowl
Type F Stage
Type F Bowl (note
slots for straps)
Collet (D, DB, F)
Locknut (D, DB, F)
Bearing (DB Only)
Impeller
5007 0405
5
10
15
20
30
25
600
0
80 100 120 140 160 180 200 220
NPSHR in Feet
Flow in GPM
BVM 32
3354 1298 BVM32
FIGURE 7 - Net Positive Suction Head Requirement (NPSHR)
FIGURE 8 - Stack Assembly Order
Temperature Vapor Pressure Absolute Pressure
in °F (°C) in PSIA (kPa) in Feet (M) of Water
32 (0) 0.089(.61) 0.205(.062)
 40(4.4) 0.122(.84) 0.281(.086)
 60(15.6) 0.256(1.77) 0.592(.180)
 80(26.7) 0.507(3.50) 1.172(.358)
 100(37.8) 0.95(6.55) 2.195(.669)
 120(48.9) 1.695(11.69) 3.914(1.193)
 140(60.0) 2.892(19.94) 6.681(2.036)
 160(71.1) 4.745(32.72) 10.961(3.341)
 180(82.2) 7.515(51.84) 17.36(5.291)
 200(93.3) 11.529(79.49) 26.632(8.117)
 210(98.9) 14.125(97.39) 32.629(9.945)
212 (100) 14.698(101.34) 33.952(10.349)
 220(104.4) 17.188(118.51) 39.704(12.102)
 230(110.0) 20.78(143.28) 48.002(14.631)
 240(115.6) 24.97(172.17) 57.681(17.581)
248 (120.0) 28.79(188.51) 66.505(20.271)
TABLE II – Vapor Pressure of Water

8
Step 1. Remove the screws holding the
coupling guards and remove the guards.
4959 0405
Step 2. Unscrew the allen screws out of the
coupling and remove the coupling halves.
NOTE: if you are disassembling more than
one pump, be sure you do not mix the
coupling parts; each coupling is a matched
pair.
4960 0405
Step 3. Unscrew the four screws holding the
seal carrier and remove the carrier.
4961 0405
Step 4. Loosen the allen screws holding the
seal about one half turn. Do not remove the
screws.
4962 0405
Step 5. Lift the seal straight up and off the
pump shaft as shown. The cartridge seal will
come out as an assembly.
4963 0405
Step 6. Remove the four allen screws
securing the motor stool to the pump head
and remove the motor and motor stool as a
unit. The stool will protect the motor shaft
from damage while it is off the pump.
4964 0405
Step 7. Remove the staybolt nuts and
washers from the pump head.
Hazardous voltage. Disconnect all power to the pump
before servicing or working on it. Make sure that the power is locked
out and that pump cannot accidentally start.
Close the suction and discharge valves nearest the pump to isolate it
from the system before starting work.
NOTE: See Table IV, Page 14, for torque specifications.
PUMP DISASSEMBLY SEQUENCE
Step 8. Tap around the pump head with a
rubber mallet to loosen it, then remove the
pump head from the pump.
4965 0405
Step 9. Remove the O-Ring from the pump
head with a small screwdriver.
4966 0405

9
Step 10. Grasp two opposite staybolts; then
press the sleeve sideways with your thumbs
to loosen it from the base. Lift the sleeve off
the base.
4968 0405
Step 11. Lift the stack off of the base.
4969 0405
Step 12. Remove the allen screw that
secures the bottom bearing in the base.
4970 0405
Step 13. Use a bearing puller to remove the
bearing from the base.
4971 0405
Step 14. Remove the O-Ring from the pump
base with a small screwdriver.
4973 0405
Step 1. Clamp the assembly fixture in the
vise and set the stack on it. Lift the shaft
enough to allow you to pin it with the
locking tool inserted in the “DISASSEMBLY”
hole in the fixture. Remove the strap nuts,
washers, and straps.
4974 0405
Step 2. Remove the top stage bowl from the
stack. NOTE: make a note of the order of
thestagesasyouremovethem(seeFigure
8,Page7).Youmustpreservetheorder
when you reassemble the pump.
4975 0405
Step 3. Remove the impeller locknut; hold
the impeller with the wrench while you
remove the locknut, exposing the collet.
STACK DISASSEMBLY SEQUENCE
Step 15. Remove the four rubber stack
compression spacers from the pump head.
4972 0405

10
4976 0405
Step 4. With the large end of the collet
driver, tap the impeller down off the collet.
Remove the collet and impeller.
4977 0405
Step 5. Repeat steps 2, 3, and 4 until you
have dismantled all stages of the pump.
Remove the bottom plate, remove the lock
pin, and retrieve the shaft from the fixture.
4979 0405
Step 2. Add the first impeller. Tap the collet
into the impeller hub with the collet driver
until it locks to the shaft and the impeller is
seated on the fixture.
4980 0405
Step 3. Apply anti-sieze oil to the impeller
threads, add the locknut; hold the impeller
with the wrench and tighten the locknut
against the collet. Torque to 52 ft.-lbs.
1
2
3
4981 0405
Step 4. Remove the lock spindle. Remove
the shaft from the fixture, seat the bottom
flange in the fixture, and reinsert the shaft/
impeller assembly into the fixture. Reinsert
the lock spindle from the opposite side
ofthefixture(thatis,inthe hole in the
fixture).SinglestagepumpsskiptoStep9.
1st Stage Will Be:
1-Stage Pump:
Type F (Step 9)
All Others:
Type D
4982 0405
Step 5.Slideabowl(seeFigure8,Page7)
down the shaft until it seats on the bottom
plate.
Add Bearing
only on 3-Stage
Pumps (type DB
Stage)
Locknut
Collet
2nd Stage Will Be:
2-Stage Pump: Type F (Step 9)
3-Stage Pump: Ty pe DB
All Others: Ty pe D
4983 0405
Step 6. Slide the next impeller, collet, and
locknut down the shaft and repeat Steps 2
and3.Fortwostagepumps,skipnowto
Step9.Forthreestagepumps,addabearing
(typeDBstage)beforegoingto
Step 7.
STACK DISASSEMBLY SEQUENCE (Continued)
STACK ASSEMBLY SEQUENCE
Step 1. Clamp the fixture in the vise and
insert the shaft. Pin the shaft with the lock
spindle inserted in the “ASSEMBLY” hole.
4978 0405

11
4984 0405
Step 7.Forallpumpswithmorethanthree
stages, use a type D stage. Three stage
pumpsusetypeDB(withspaceroverthe
locknut)andgotoStep9.
NOTE: If your pump has reduced diameter
impellers(forexample,aBVM32-6-2),they
go in the top stages. In a BVM32-6-2, for
instance,stages5and6(thetoptwo)are
reduced diameter. Note that the impeller
shroud is full diameter; only the vanes are
reduced. Be sure you do not mix them with
full diameter impellers.
4985 0405
Step 8. Repeat Steps 5 and 6, following the
orderforbowlassemblyshowninFigure8.
Repeat until you have done the next to the
last bowl, then go to Step 9.
4986 0405
Step 9.AddtypeFstagebowl(withcutouts
forstraps).Insertthestrapsintheholes
in the bottom plate, hook into the bowl
cutouts, add nuts and washers, and tighten
thestrapsto4.4ft.-lbs.(53in.-lbs.)oftorque
(seeTableIV,Page14).
STACK ASSEMBLY SEQUENCE (Continued)
PUMP REASSEMBLY SEQUENCE
4987 0405
Step 1. Install the four rubber stack
compression spacers in the pump head.
4988 0405
Step 2. Install the O-Ring in the groove in
the pump base.
4989 0405
Step 3. Align the notch in the bearing with
the threaded hole in the base and press the
bearing into the base. Make sure it goes in
straight and does not deform.
Hazardous voltage. Disconnect all power to the
pump before servicing or working on it. Make sure that the power is
locked out and that pump cannot accidentally start.
NOTE: See Table IV, Page 14, for torque specifications.
Step 10. Check for free rotation. If the
stack now rotates freely, it is ready for
installation in the pump.

12
PUMP REASSEMBLY SEQUENCE (Continued)
4990 0405
Step 4A. Install the allen screw that secures
the bottom bearing in the base. Tighten it to
6 ft- lbs. torque.
Step 4B. If you removed the staybolts at
disassembly, grease the threads and reinstall
them now, tightening them to 75 ft.-lbs.
torque.
4991 0405
Step 5. Align the hole in the bottom plate
with the pin on the base and install the
stack on the base.
4992 0405
Step 6. Install the sleeve in the base.
4993 0405
Step 7. Lubricate the O-Ring and install it in
the groove in the pump head.
4994 0405
Step 8. Install the pump head on the pump
and seat it with a rubber mallet. The vent
plug must be over the discharge port in the
pump base.
4995 0405
Step 9. Lubricate the threads and Install
the staybolt nuts and washers on the pump
head. Cross-tighten them to 75 ft.-lbs.
torque.
4996 0405
Step 10A. Install the motor stool on the
pump head. Grease the threads on the four
allen screws that secure it, then install the
allen screws and cross-tighten them to 45
ft.-lbs. torque.
Step 10B. If you removed the motor at
disassembly, reinstall it now. Grease the
threads on the motor bolts and then install
and cross-tighten them to 30 ft.-lbs. torque.
4997 0405
Step 11. Lubricate the shaft seal and
O-Rings. Install the seal on the shaft,
making sure that it seats on the pump head.
4998 0405
Step 12. Slide the seal carrier down the
shaft until it seats solidly on the shaft seal
flange. Grease the threads on the allen
screws and install the screws. Cross-tighten
them to 46 ft-lbs. torque.

13
PUMP REASSEMBLY SEQUENCE (Continued)
4999 0405
Step 13. Cross-tighten the allen screws
holding the seal to 6 ft.-lbs. torque.
5000 0405
Step 14. Lift the pump shaft and insert the
spacer under the seal flange.
5001 0405
Step 15. Install the coupling with the shelf
at the bottom of the coupling flush with the
top of the pump shaft as shown. Grease the
coupling allen screws and loosely install all
four of them.
5002 0405
Step 16. After all four allen screws are
in place, cross-tighten them to 45 ft.-lbs.
torque, making sure that the gap between
the halves remains even on both sides as
you tighten the screws.
5003 0405
Step 17. Remove the spacer from under the
sealflange.Forsafekeeping,clampitunder
the allen screw in the extra hole on the seal
carrier.
5004 0405
Step 18. Turn the pump shaft by hand
to check rotation. If it binds or drags,
disassemble the pump and repeat the
assembly procedure.
5005 0405
Step 19. Replace the coupling guards and
secure them with screws.
The pump has now
been completely
reassembled and
should be ready
for service.

14
Frequency of Starts and Stops
Check pump cycling frequency and make sure that the
pump is not starting more than:
Frost Protection
1. If you do not use your pump during seasons of frost,
drain it and add a glycol based antifreeze (50/50
mixture)toavoiddamage.
Risk of water damage and injury. Watch the
direction of the priming plug and make sure that liquid
escaping from it does not injure persons nearby or damage
the motor or other components. In hot water installations,
pay particular attention to the risk of injury from scalding
hot water.
2. Upon restart dispose of spent antifreeze properly.
3. Do not replace the drain plug or tighten the priming
plug until you put the pump back in service again.
Regular Maintenance Checks
The following checks should be made at regular intervals:
1. The pump meets required performance and is operating
smoothly and quietly.
2. There are no leaks.
3. The motor is not overheating.
4. Remove and clean all strainers and filters in the system.
5. Verify amp draw – check motor amperage.
6. Pump wear rings and shaft require no regular
maintenance.
Cycles Motor HP Rating
20 times per hour 1/2 - 5 HP motors
15 times per hour 7- 1/2 - 15 HP motors
10 times per hour 20 and 25 HP motors
4 times per hour 30 HP motors
3 times per hour 40 HP motors
TABLE III – Maximum Number of Cycles
TABLE IV – Torque Specifications (foot-lbs.)
Type of
Part Lubrication
Description Torque Required
Coupling Screws 45 G
Strap Nuts 4.4 O
Motor Stool Capscrews 45 G
Pump Head Capscrews 45 G
Base Bearing Ring Screw 8 O
Staybolt 75 G
Collet Lock Nut 52 O
Seal Carrier Screws 46 G
 ShaftScrew(bottom) 26 O
Plugs 26 G
Motor Capscrews 30 G
G = Grease or Threading Compound.
O = Anti-Seizing Oil.

15
TROUBLESHOOTING GUIDE
Hazardous voltage and risk of sudden starts. Disconnect all power to the pump before servicing or working
on pump. Make sure that power is locked out and that pump cannot be accidentally started.
PROBLEM CAUSE
1. Motor does not run when started A. Power failure
   B. Fusesblown
C. Motor starter overload has tripped out
D. Main contacts in motor starter are not making contact or the coil is faulty
E Control circuit fuses are defective
   F. Motorisdefective
2. Motor starter overload trips out immediately A. One fuse has blown
when power supply is switched on B. Contacts in motor overload relay are faulty
C. Cable connections are loose or faulty
D. Motor winding is defective
E. Pump mechanically blocked
   F. Overloadsettingistoolow
3. Motor starter overload trips out occasionally A. Overload setting is too low
B. Low voltage at peak times
 4. Motorstarterhasnottrippedoutbutthemotor A. Check1A),B),D,)andE)
does not run
5. Pump capacity is not constant A. Pump inlet pressure is too low
B. Suction pipe/pump partly blocked
C. Pump is sucking air
6. Pump runs but gives no water A. Suction pipe/pump blocked
   B. Footornon-returnvalveisblockedinclosedposition
C. Leakage in suction pipe
D. Air in suction pipe or pump
E. Motor rotates in the wrong direction
7. Pump runs backwards when switched off A. Leakage in suction pipe
   B. Footornon-returnvalveisdefective
   C. Footvalveisblockedinopenorpartlyopenposition
D. Non return valve leaks or is blocked in open or partly open position
E. Discharge valve is defective
8. Leakage from shaft seal A. Pump shaft position is incorrect
B. Shaft seal is defective
9. Noise A. Cavitation is occurring in the pump
   B. Pumpdoesnotrotatefreely(Thatis,thereisincreasedfrictionalresistance)
because of incorrect shaft position
Limited Warranty
BERKELEY warrants to the original consumer purchaser (“Purchaser” or “You”) of the products listed below, that they will be free from defects in material and workmanship
for the Warranty Period shown below.
Product Warranty Period
Water Systems:
Water Systems Products — jet pumps, small centrifugal pumps, submersible pumps and related accessories
whichever occurs first:
12 months from date of original installation, or
18 months from date of manufacture
Pro-Source™ Composite Tanks 5 years from date of original installation
Pro-Source™ Steel Pressure Tanks 5 years from date of original installation
Pro-Source™ Epoxy-Lined Tanks 3 years from date of original installation
Sump/Sewage/Effluent Products 12 months from date of original installation, or
18 months from date of manufacture
Agricultural/Commercial:
Centrifugals – close-coupled motor drive, frame mount, SAE mount, engine drive, VMS, SSCX, SSHM, solids handling,
submersible solids handling
12 months from date of original installation, or
24 months from date of manufacture
Submersible Turbines, 6” diameter and larger 12 months from date of original installation, or
24 months from date of manufacture
Our limited warranty will not apply to any product that, in our sole judgement, has been subject to negligence, misapplication, improper installation, or improper
maintenance. Without limiting the foregoing, operating a three phase motor with single phase power through a phase converter will void the warranty. Note also that three
phase motors must be protected by three-leg, ambient compensated, extra-quick trip overload relays of the recommended size or the warranty is void.
Your only remedy, and BERKELEY’s only duty, is that BERKELEY repair or replace defective products (at BERKELEY’s choice). You must pay all labor and shipping charges
associated with this warranty and must request warranty service through the installing dealer as soon as a problem is discovered. No request for service will be accepted if
received after the Warranty Period has expired. This warranty is not transferable.
BERKELEY SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL, OR CONTINGENT DAMAGES WHATSOEVER.
THE FOREGOING LIMITED WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE FOREGOING LIMITED WARRANTIES SHALL NOT EXTEND BEYOND
THE DURATION PROVIDED HEREIN.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on the duration of an implied warranty, so the above limitations or
exclusions may not apply to You. This warranty gives You specific legal rights and You may also have other rights which vary from state to state.
This Limited Warranty is effective June 1, 2011 and replaces all undated warranties and warranties dated before June 1, 2011.
In the U.S.: BERKELEY, 293 Wright St., Delavan, WI 53115
In Canada: 269 Trillium Dr., Kitchener, Ontario N2G 4W5

16
2
3
6
7
10B
10A 11
9
15
16
19
20
21
23
23
24A
25
26
25
26
25
26
27A
29
24B
24C
27B
30
31
32
27B
33
34
17
35
36
37
41
43
42
40
18 17
28
38
39
1
4
1A
5
8
12
13
14
5006 0405
BVM32 SERIES REPAIR PARTS LIST
Key Key
No. Description No. Description
 1 Motor 24A TopBowl(TypeF)
 1A MotorCapscrew1/2–13x1-1/2”UNC 24B BowlwithBearing(TypeDB)
 2 CouplingGuard 24C BowlwithGraphite(TypeD)
3 Coupling Guard Capscrew M5X10 25 Collet Lock Nut
4 Motor Stool 26 Collet
 5 MotorStoolCapscrewM10X55,AllenHd 27A Impeller(ReducedDiameter)
 6 CouplingAssembly(Complete) 27B Impeller(FullDiameter)
7 Coupling Screw M10X25 Allen Hd 28 Strap M8
8 Seal Carrier Screw M10X25 Allen Hd 29 Intermediate Bearing
 9 MechanicalSeal 30 Interconnector(StackBottomPlate)
10A Seal Spacer Lock Screw 31 Strap Washer M8
10B Seal Spacer 32 Strap Nut M8X20
11 Seal Carrier 33 Sleeve
12 Staybolt Nut 5/8-11 34 Staybolt 5/8-11
 13 5/8”StarWasher 35 BearingLockCapscrew(Incl.Washer)M6X8
 14 5/8”FlatWasher 36 BottomBearing
15 Pump Head 37 Pin
 16 FillPlug 38 DrainPlug(IncludesO-Ring)
17 O-Ring 39 Pump Base
 18 VentPlugwithNeedle 40 FlangeLockRing
 19 Shaft 41 8-Bolt300#Flange
 20 BearingRing 42 4-Bolt150#Flange
21 Adapter Ring 43 SS Drain Plug with 1/4 NPT Gauge Tap and Pipe Plug
 22 WasherM10 • RubberStackBumpers
23 Shaft Capscrew M10X16
•NotIllustrated.