Pentair MYERS 4VLX P Series User manual

pentair.com
OWNER'S MANUAL
©2022 Pentair. All Rights Reserved.
(*Hazardous Location Motor End)
SUBMERSIBLE SOLIDS HANDLING PUMP
4VL(X*)P, 8SM(X*)P, 8VL(X*)P, 12VL(X*)P
*(CLASS I, DIVISION 1, GROUPS C & D): FM
MY12736 / 23833A737 (10-15-22)

MY12736 / 23833A737 (11/01/22)
2
TABLE OF CONTENTS
SAFETY INSTRUCTIONS..........................................................................................................................................................................3
GENERAL INFORMATION .........................................................................................................................................................................4
INSTALLATION.........................................................................................................................................................................................5
OPERATIONS & MAINTENANCE...............................................................................................................................................................6
TROUBLESHOOTING................................................................................................................................................................................7
PARTS INDEX...........................................................................................................................................................................................8
WIRING DIAGRAM................................................................................................................................................................................... 14
WARRANTY ........................................................................................................................................................................................... 15

MY12736 / 23833A737 (11/01/22) 3
SAFETY INFORMATION
SAFETY SYMBOLS
This is the safety alert symbol. 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:
DANGER 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 that are
important but not related to hazards.
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.
GENERAL SAFETY
 Carefully read and follow all safety instructions in this
manual and on the unit itself.
 Do not touch an operating motor. Modern
motors can operate at high temperatures. To avoid burns
when servicing pump, allow it to cool for 20 minutes after
shutdown before handling.
 Follow all applicable local and state codes and regulations.
 Keep safety labels in good condition, replacing any missing
or damaged labels.
 DO NOT run the pump dry. Dry running can overheat the
pump, (causing burns to anyone handling it) and will void the
warranty.
 The pump is permanently lubricated. No oiling or greasing is
required in normal operation.
 Periodically inspect pump and system components.
 Wear safety glasses at all times when working on pumps.
 Keep work area clean, uncluttered and properly lighted.
Store all unused tools and equipment.
 DO NOT use to pump flammable liquids.
ELECTRICAL SAFETY
Hazardous voltage. Can shock, burn, or kill.
When installing, operating, or servicing this pump, follow the
safety instructions listed below.
 ELECTROCUTION HAZARD: Must be installed
by a qualified professional. Disconnect all electrical power
before attempting service.
 DO NOT modify the cord. When wiring to a system control,
connect ground lead to the system ground.
A water test must be taken before installation
of any water treatment equipment. The water quality can
significantly influence the life of your system. You should
test for corrosive elements, acidity, total solids and other
relevant contaminants, including chlorine and treat your water
appropriately to ensure satisfactory performance and prevent
premature failure.

MY12736 / 23833A737 (11/01/22)
4
GENERAL INFORMATION
This manual contains important information for the safe use of
this product. Read completely and do not throw away.
Reasonable care and safe methods should be practiced. Check
local codes and requirements before installation.
UNPACKING PUMP
When unpacking unit, check for damage. Claims for damage must
be made at the receiving end through the delivery carrier. Damage
cannot be processed from the factory.
Before handling these pumps and controls,
always disconnect the power first. Do not smoke or use sparkable
electrical devices or flames in a septic (gaseous) or possible
septic sump.
PUMPS IN STORAGE OR NOT OPERATING
Pumps with silicon/carbide seals must have impellers manually
rotated (6 revolutions) after setting non-operational for 3 months
or longer and prior to electrical start-up.
Pumps with tungsten carbide seals must have impellers
manually rotated (6 revolutions) after setting non-operational
for 3 weeks or longer and prior to electrical start-up.
SEAL FAILURE PROBES
All submersible pumps have two factory installed moisture
detectors (seal failure probes). They are in a normally open
series circuit in the seal chamber. Under normal operating
conditions, the circuit remains open. If the lower seal leaks and
moisture enters this chamber, the moisture would settle to the
bottom of the chamber and will complete the circuit between
the moisture detectors.
This circuit must be connected to a sensing unit and signaling
device. This is supplied in a manufacturer built control panel.
Failure to install such a device negates all warranties.
HEAT SENSORS
All motors in this family have heat sensors on or embedded in the
motor winding to detect excessive heat. This prevents damage to
the motor. If sensor trips due to excessive winding temperature,
the starter in the panel interrupts power to the pump. The
sensors are set to trip at 150°C.
Failure to install such circuitry would negate FM approvals and
all warranties.
POWER CORDS
The power cord and heat sensor seal failure cord are potted into
the cord cap. The cords must not be spliced.
Each cable has a green lead. This is the ground wire and must be
grounded properly per NEC and/or local codes. Cords should be
inspected for abnormal wear and replaced accordingly.
OVERLOAD HEATERS
If the electrical panel is not used, starters with 3 leg overload
relay must be supplied on 3 phase pumps. Each leg is to have an
identical heater sized in accordance with the nameplate amps on
the motor housing. The amp draw on these submersible motors is
slightly higher than a corresponding horsepower surface motor,
so heaters must be sized by the nameplate rating.
INSTALLING SUMP LEVEL CONTROLS FLOAT CONTROLS
In all systems, the lower or turn-off control is to be set to
maintain a minimum level in the sump. This level shall be no
more than 3-1/4" from the top of the motor housing down to the
surface of the sewage.
The second or turn-on control is set above the lower turn-off
control. The exact distance between the two floats must be a
compromise between a frequent pumping cycle (15 starts per
hour max) to control septicity, solids and a slower cycle for energy
economy. This distance should be determined by the engineer or
consulting engineer, depending on the conditions of
the application.
INSTALLING PUMP IN SUMP
Before installing the pump in the sump, lay it on its side and rotate
impeller. Impeller may be slightly stuck due to factory test water.
The impeller should turn freely. DO NOT connect the power until
after this test.
Clean all debris from sump and connect pump to piping. A check
valve must be installed on each pump and a gate or plug valve in
each pump discharge is highly recommended. This valve should be
installed on the discharge side of the check valve so if it becomes
necessary to service the check valve, the line pressure can be
cut off. Single pump systems are sometimes installed without a
check valve where it is desirable to self-drain the discharge line to
prevent freezing. This can be done only with short discharge lines;
otherwise water will return to the sump and cause short cycling of
the pump.

MY12736 / 23833A737 (11/01/22) 5
INSTALLATION
MAKING ELECTRICAL CONNECTIONS
All electrical wiring must be in accordance with local codes,
and only competent electricians should make the installations.
Complete wiring diagrams are glued to the inside cover of the
panel. It is VERY IMPORTANT to check all wires for grounds with
an ohmmeter or Megger meter after the connections are made
as one grounded wire can cause considerable trouble.
NOTICE If equipment is not properly wired and protected as
recommended, the warranty is void.
The 230 volt 3 phase pump has a dual marked
nameplate. For ordinary location pumps, voltage may be rewired
by qualified personnel. For hazardous location pumps, voltage
may be rewired by the manufacturer or a Class I, Div I equipment
qualified electrician. Once the voltage is changed, the factory
cord tag indicating 230 volt 3 phase must be removed.
For record keeping purposes, we suggest the pump be marked
externally with the new voltage and qualified personnel that
performed the change. Pumps shipped from the factory as 460
volt 3 phase cannot be rewired to any other voltage.
TO RE-WIRE THE PUMP FROM 230V TO 460V 3 PHASE
Only a 230V pump from the factory is considered dual voltage, a
cord label clearly states the factory wound voltage.
1. Remove all six (#7) cap screws then raise the cord cap
assembly enough to slip a prying instrument on opposite
sides between the cord cap casting and the motor housing.
Take care to not damage the o-ring or the machined
surfaces of the castings. Doing so could void FM agency
certifications.
2. While prying evenly on both sides; separate the cord cap
casting from the motor housing, the assembly is airtight
and will have a vacuum effect when disassembling.
3. Once separated, the cord cap can be inverted and rotated
to the outside of the pump assembly, and a bolt can be
re-used to secure the upside down cord cap to the motor
housing for ease of rewiring.
Refer to the wiring diagram within this manual for wiring
details. Once all electrical connections are finished and secure
(a crimped electrical connector is best to prevent issues due
to vibration if required), the cord cap should be re-attached
reversing the steps above. Ensure the o-ring is in place and
perform a hi-pot test for safety once everything is complete.
HEAT SENSORS AND SEAL FAILURE CONNECTIONS
Be sure heat sensor wires are connected in series with the starter
coil. Connections are provided on the terminal strip.
6
9
5
8
4
7
321
RWBL
(L3)(L2)(L1)
9
5
8
4
7
6
321
RWBL
(L3)(L2)(L1)
DELTA
GREENGREEN
460V 3ɸ230V 3ɸ
DUAL VOLTAGE
3 PHASE MOTOR WIRING
SYSTEM TYPE NUMBER OF
CONTROL WIRE
NUMBER OF
POWER LINE
NUMBER OF
GROUND WIRES #8
HEAT SENSOR & SEAL FAILURE
NUMBER OF SENSOR
WIRES
NUMBER OF GROUND
WIRES
Simplex 4 3 1 3 1
Simplex with Alarm 6 3 1 3 1
Duplex 6 6 2 6 2
Duplex with Alarm 8 6 2 6 2
NUMBER OF CONDUCTORS REQUIRED BETWEEN CONTROL PANEL AND NEMA 4 JUNCTION BOX
Power lines and control wires can be carried in conduit or can be underground buried cable
HEAT SENSORS
IN MOTOR WINDINGS
BLACK WHITE
MOTOR HEAT SENSORS
ELECTRODE ELECTRODE
RED ORANGE
330KΩ
HAZARDOUS RATED ONLY
SEAL FAILURE
RED ORANGE
NON-HAZARDOUS RATED ONLY
ELECTRODE ELECTRODE
SEAL FAILURE
HEAT SENSORS AND SEAL FAILURE CONNECTIONS
FOR ANY VOLTAGE MOTOR

MY12736 / 23833A737 (11/01/22)
6
OPERATIONS & MAINTENANCE
PUMP OPERATIONS STARTING SYSTEM
1. Double check all wire connections.
2. Turn pumps to Off position on H-O-A switches.
3. Turn on breakers.
4. Connect amprobe to pump power cord and turn pump on. The
pump will show high amp draw momentarily, then as pump
comes off start wirings, amps will drop to normal nameplate
amps.
5. When using three phase pumps (208/230/460/575), turn
the H-O-A switch to Hand position on one pump and notice
operation. If pump is noisy and vibrates, rotation is wrong.
To change rotation, interchange any two line leads to pump.
Do not interchange main incoming lines. Check rotation of
all pumps in this same manner.
6. Now set both H-O-A switches to Auto position and allow
water to rise in sump until one pump starts. Allow pump to
operate until the level drops to turn-off point.
7. Allow sump level to rise to start other pump(s). Notice run
lights in panel. Pumps should alternate on each successive
cycle of operation.
8. Turn both H-O-A switches to Off position and allow sump to
fill to the override control level(s).
9. Turn switches to Auto position, and pumps should start and
operate together until level drops to turn-off point.
10. Repeat this operation and cycle several times before
leaving the job.
11. Check voltage when pumps are operating and check
the amp draw of each pump. Check amps on each pump
conductor as sometimes a high leg will exist. For excessive
voltage on one leg, the electric utility company should be
consulted.
PUMP MAINTENANCE
As the motors are oil filled, no lubrication or other maintenance is
required.
If the heat sensor and seal failure are hooked up properly, no
attention is necessary as long as the seal failure indicator light
does not come on. To ensure continuity of the seal sensor leads,
a test light is provided on intrinsically safe panels as standard
equipment.
Before handling these pumps and controls,always
disconnect the power first. Do not smoke, use flames or devices
that can produce electrical discharge or sparks in a septic
(gaseous) or possible septic sump.
FIELD SERVICE ON ORDINARY LOCATION PUMPS
Ordinary location submersible motors that are out of warranty
can be serviced in the field by any reliable motor service shop.
Any pump that is in warranty must be returned to the factory for
service or repaired at an authorized service center. Charges will
not be allowed if (in warranty) pump is not taken to an authorized
service center. When field service is performed on a pump,
these instructions should be carefully followed.
FIELD SERVICE ON HAZARDOUS LOCATION PUMPS
Hazardous location pumps must be returned to the factory for
electrical and motor service. Any repair not at an authorized
service center will void the Factory Mutual (FM) listing. This
will ensure the integrity of the hazardous location rating of the
pump and comply with our warranty requirements.
The lower seal, volute and impeller components may be
repaired or replaced by an authorized service facility without
compromising the hazardous location rating to the pump.
For any repairs in which the oil is drained, the pump must be
re-filled with an approved oil. The motor chamber cannot be
disassembled, during repairs as this will result in loss of agency
rating.
Any time a seal is disturbed, it must be replaced.
Check the pump for proper rotation before returning to service.

MY12736 / 23833A737 (11/01/22)
7
TROUBLESHOOTING
PUMP TROUBLESHOOTING
Below is a list of common problems and the probable causes.
PUMP WILL NOT START
1. No power to the motor. Check for blown fuse or open circuit
breaker.
2. Selector switch may be in the Off position.
3. Control circuit transformer fuse may be blown.
4. Overload heater on starter may be tripped. Push to reset.
PUMP WILL NOT START AND OVERLOAD HEATERS TRIP
1. Turn off power and check motor leads with Megger or
ohmmeter for possible ground.
2. Check resistance of motor windings. All 3 phases should
exhibit the same reading.
3. If no grounds exist and the motor windings check OK,
remove pump from sump and check for clogged or blocked
impeller.
PUMP OPERATES WITH SELECTOR SWITCH IN HAND POSITION
BUT WILL NOT OPERATE IN AUTO POSITION
1. This indicates trouble in the float level control or the
alternator relay.
2. Check control panel for trouble.
PUMP RUNS BUT WILL NOT SHUT OFF
1. Pump may be air locked. Turn pump off and let set for
several minutes, then restart.
2. Lower float control may be hung-up in the closed position.
Check in sump to be sure control is free.
3. Selector switch may be in the Hand position.
PUMP DOES NOT DELIVER PROPER CAPACITY
1. Discharge gate valve may be partially closed or partially
clogged.
2. Check valve may be partially clogged. Raise level up and
down to clear.
3. Pump may be running in wrong direction. Low speed pumps
can operate in reverse direction without much noise or
vibration.
4. Discharge head may be too high. Check total head with
gauge when pump is operating. Total head is discharge
gauge pressure converted to feet plus vertical height from
water level in sump to center line of pressure gauge in
discharge line. Gauge should be installed on pump side of
all valves. Multiply gauge pressure in pounds by 2.31 to get
head in feet.
5. If pump has been in service for some time and capacity falls
off, remove pump and check for wear or clogged impeller.
MOTOR STOPS AND THEN RESTARTS AFTER SHORT PERIOD
BUT OVERLOAD HEATERS IN STARTER DO NOT TRIP
1. This indicates heat sensors in the motor are tripping due
to excessive heat. Impeller may be partially clogged giving
a sustained overload but not high enough to trip overload
heater switch.
2. Motor may be operating out of liquid due to a failed level
control.
3. Pump may be operating on a short cycle due to sump being
too small or from water returning to sump due to a leaking
check valve.

MY12736 / 23833A737 (11/01/22)
8
PARTS INDEX - MODELS 4VL(X)P, 8SM(X)P, 8VL(X)P, 12VL(X)P
25
10-4, 8-4, 6-4
& 4-4 CORD CAP
3, 4
1
25
A1
7
10
5
6
14
A4
A2
22
8
12
13
19
2
18
9
112624
21
16
23
20
15
A3
17

MY12736 / 23833A737 (11/01/22) 9
320 FRAME PUMPS QTY 360 FRAME PUMPS
ITEM ENG. NO. DESCRIPTION ENG. NO. DESCRIPTION
1
28013D000 Housing – Motor 30 hp –75 hp 1 28014D000 Housing – Motor 150 hp
28013D001 Housing – Motor 20 hp – 25 hp 1 28014D001 Housing – Motor 40 hp –125 hp
227977D010 Housing – Bearing 1 27990D010 Housing – Bearing
327882A009 Terminal Block (8 Awg and Smaller) 1 27882A009 Terminal Block (8 Awg and Smaller)
406106A069 Screw – Cap SKT HD Terminal Block 2 06106A069 Screw – Cap SKT HD Terminal Block
5110650043 Screen 1110650053 Screen
619331A009 Washer – Spring 1 000640111 Washer – Spring
719101A017 Screw – Cap 6 19101A017 Screw – Cap
8083540003 Stator Ring 1083543603 Stator Ring
9029210011 Screw – Cap Flat HD Seal Plate 4 029210011 Screw – Cap Flat HD Seal Plate
10 001500191 O-Ring, Cord Cap 1001500191 O-Ring, Cord Cap
11 05876A112 O-Ring, Seal Plate 105876A112 O-Ring, Seal Plate
12 001500381 O-Ring, Motor Housing 1 001500351 O-Ring, Motor Housing
13 19101A048 Screw – Cap 12 19105A044 Screw – Cap
14 08565A026 Ball Bearing Upper 1 000650351 Ball Bearing Upper
15 071670191 Ball Bearing Lower Double Row 1 071670201 Ball Bearing Lower Double Row
16 009240101 Plug – Pipe 1/2" Skt Hd. Brass 3 009240101 Plug-Pipe 1/2" Skt Hd. Brass
17 065790011 Stator Key 1065790011 Stator Key
18 109010011 Probe – Seal Failure 2 109010011 Probe – Seal Failure
19 109000025 Seal – Sensor Hazardous Only, Resistor 1109000025 Seal – Sensor Hazardous Only, Resistor
109005115 Seal-Sensor Non-Hazardous Only 2109005115 Seal-Sensor Non-Hazardous Only
20 009750141 Ring – Retaining External 1 009750141 Ring – Retaining External
21 009750101 Ring – Retaining External Seal 1 009750101 Ring – Retaining External Seal
22 009740151 Ring – Retaining Internal 1 009740151 Ring – Retaining Internal
23 037183001 Shaft Seal Sil Car/ Carbon – Nitrile Upper 1 27995A000 Shaft Seal Sil Car/Carbon – Nitrile Upper
24 27996A000 Shaft Seal Sil Car/ Carbon – Nitrile Lower 1 27997A000 Shaft Seal Sil Car/Carbon – Nitrile Lower
25
152880315 Cord Cap Assembly – 10-4 SOOW 1 152880325 Cord Cap Assembly 8-4 SOOW
152880325 Cord Cap Assembly – 8-4 SOOW 1 152880335 Cord Cap Assembly 6-4 SOOW
152880335 Cord Cap Assembly – 6-4 SOOW 1 152880345 Cord Cap Assembly 4-4 SOOW
152880345 Cord Cap Assembly – 4-4 SOOW 1 152885355 Cord Cap Assembly 2-4 SOOW
152885355 Cord Cap Assembly – 2-4 SOOW 1 152885365 Cord Cap Assembly 0-4 SOOW
152885365 Cord Cap Assembly – 0-4 SOOW 1 152885375 Cord Cap Assembly 4/0-3 SOOW
26 073980312 Seal Plate 1073980412 Seal Plate
PARTS INDEX

MY12736 / 23833A737 (11/01/22)
10
PARTS INDEX
ITEM DESCRIPTION 4VL(X)P 8VL(X)P 8SM(X)P 12VL(X)P
B1 SCREW – MACH. FL. HD. 008290091 (4) 07597A021 (4) 07597A021 (4) –
B2 WASHER–IMPELLER 019450013 019450013 019450013 019450013
B3 SCREW – CAP (HEX SOC.) 3/4 038790021 038790021 038790021 038790021
B4 VOLUTE 136880002 073942002 073940002 25457F200
B5 RING – WEAR 136950003 083450002 135350003 24548D000
B6 CLAMP – WEAR RING – – 135360003 –
B7 BELL – SUCTION – – – 105871002
B8 STAND – PUMP – – – 106270005
B9 SCREW – CAP HEX SST 1/2-13 – – – 19106A017
B10 SCREW – CAP HEX SST 1/2-13 – – – 06106A019 (3)
B11 SCREW – CAP SKT HD 1/4-20 – – – 19103A052 (8)
4VL(X)P 8VL(X)P
12VL(X)P8SM(X)P
B2B1 B3 B5
B4
B2
B1 B3 B5
B4
B2B1 B3 B5 B6
B4
B2
B10
B3
B5
B8
B9
B11
B11
B7
B4

MY12736 / 23833A737 (11/01/22) 11
ITEM 6-POLE 1150 RPM 60-75 HP, 460/3/60 60-75 HP, 575/3/60
A1 STATOR 27984D003 27984D603
A2 ROTOR/SHAFT ASSEMBLY 27984D011 27984D011
A3 BOLT-STATOR 06106A068 (6) 06106A068 (6)
A4 SPACER 086625011 086625011
ITEM 4-POLE 1750 RPM 100 HP
460/3/60
100 HP
575/3/60
125 HP
460/3/60
125 HP
575/3/60
150 HP
460/3/60
150 HP
575/3/60
A1 STATOR 27980D003 27980D603 27981D003 27981D603 27982D003 27982D603
A2 ROTOR/SHAFT
ASSEMBLY 27981D011 27981D011 27981D011 27981D011 27982D011 27982D011
A3 BOLT-STATOR 1/2-13 06106A068 (6) 06106A068 (6) 06106A068 (6) 06106A068 (6) 06106A068 (6) 06106A068 (6)
ITEM 4-POLE 1750 RPM 75 HP, 460/3/60 75 HP, 575/3/60
A1 STATOR 27969D003 27969D603
A2 ROTOR/SHAFT ASSEMBLY 27969D011 27969D011
A3 BOLT-STATOR 005560181 (6) 005560181 (6)
ITEM 8-POLE 870 RPM 20-25 HP
208-230-460/3/60
20-25 HP
575/3/60
30-40 HP
230-460/3/60
30-40 HP
575/3/60
A1 STATOR 27975D003 27975D603 27973D003 27973D603
A2 ROTOR/SHAFT ASSEMBLY 27975D011 27975D011 27973D011 27973D011
A3 BOLT-STATOR 06106A027 (6) 06106A027 (6) 06106A027 (6) 06106A027 (6)
A4 SPACER 086620131 086620131 086620111 086620111
ITEM 6-POLE 1150 RPM 40-50 HP, 460/3/60 40-50 HP, 575/3/60
A1 STATOR 27972D003 27972D603
A2 ROTOR/SHAFT ASSEMBLY 27972D011 27972D011
A3 BOLT-STATOR 005560181 (6) 005560181 (6)
360 FRAME PUMP MOTORS PARTS GROUP
320 FRAME PUMP MOTORS PARTS GROUP
PARTS INDEX

MY12736 / 23833A737 (11/01/22)
12
PARTS INDEX
8VL(X)P - 320 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
8VLP750M4-43 28272E000 75 460/3 2-4 12.13 X 11.13 25252D559
8VLP750M4-53 28272E001 75 575/3 4-4 12.13 X 11.13 25252D559
8VLXP750M4-43 28272E600 75 460/3 2-4 12.13 X 11.13 25252D559
8VLXP750M4-53 28272E601 75 575/3 4-4 12.13 X 11.13 25252D559
1150 RPM
8VLP400M6-43 28272E002 40 460/3 6-4 14.25 X 13.25 25252D553
8VLP400M6-53 28272E003 40 575/3 8-4 14.25 X 13.25 25252D553
8VLXP400M6-43 28272E602 40 460/3 6-4 14.25 X 13.25 25252D553
8VLXP400M6-53 28272E603 40 575/3 8-4 14.25 X 13.25 25252D553
8VLP500M6-43 28272E004 50 460/3 4-4 15 X 14 25252D551
8VLP500M6-53 28272E005 50 575/3 6-4 15 X 14 25252D551
8VLXP500M6-43 28272E604 50 460/3 4-4 15 X 14 25252D551
8VLXP500M6-53 28272E605 50 575/3 6-4 15 X 14 25252D551
870 RPM
8VLP200M8-03 28272E006 20 208/3 4-4 14.88 X 13.88 25252D552
8VLP200M8-23/43 28272E007 20 230/460/3 6-4 14.88 X 13.88 25252D552
8VLP200M8-43 28272E008 20 460/3 8-4 14.88 X 13.88 25252D552
8VLP200M8-53 28272E009 20 575/3 8-4 14.88 X 13.88 25252D552
8VLXP200M8-03 28272E606 20 208/3 4-4 14.88 X 13.88 25252D552
8VLXP200M8-23/43 28272E607 20 230/460/3 6-4 14.88 X 13.88 25252D552
8VLXP200M8-43 28272E608 20 460/3 8-4 14.88 X 13.88 25252D552
8VLXP200M8-53 28272E609 20 575/3 8-4 14.88 X 13.88 25252D552
8VLP250M8-03 28272E010 25 208/3 4-4 15 25252D550
8VLP250M8-23/43 28272E011 25 230/460/3 4-4 15 25252D550
8VLP250M8-43 28272E012 25 460/3 8-4 15 25252D550
8VLP250M8-53 28272E013 25 575/3 8-4 15 25252D550
8VLXP250M8-03 28272E610 25 208/3 4-4 15 25252D550
8VLXP250M8-23/43 28272E611 25 230/460/3 4-4 15 25252D550
8VLXP250M8-43 28272E612 25 460/3 8-4 15 25252D550
8VLXP250M8-53 28272E613 25 575/3 8-4 15 25252D550
4VL(X)P - 320 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
4VLP750M4-43 28268E000 75 460/3 2-4 13 135321092
4VLP750M4-53 28268E001 75 575/3 4-4 13 135321092
4VLXP750M4-43 28268E600 75 460/3 2-4 13 135321092
4VLXP750M4-53 28268E601 75 575/3 4-4 13 135321092
8SM(X)P - 320 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
8SMP750M4-43 28270E000 75 460/3 2-4 13 135320052
8SMP750M4-53 28270E001 75 575/3 4-4 13 135320052
8SMXP750M4-43 28270E600 75 460/3 2-4 13 135320052
8SMXP750M4-53 28270E601 75 575/3 4-4 13 135320052
320 FRAME PUMP IMPELLERS PARTS LIST

MY12736 / 23833A737 (11/01/22) 13
12VL(X)P
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1150 RPM
12VLP400M6-43 28274E000 40 460/3 6-4 12.38 25456E559
12VLP400M6-53 28274E001 40 575/3 8-4 12.38 25456E559
12VLXP400M6-43 28274E600 40 460/3 6-4 12.38 25456E559
12VLXP400M6-53 28274E601 40 575/3 8-4 12.38 25456E559
12VLP500M6-43 28274E002 50 460/3 4-4 13 25456E556
12VLP500M6-53 28274E003 50 575/3 6-4 13 25456E556
12VLXP500M6-43 28274E602 50 460/3 4-4 13 25456E556
12VLXP500M6-53 28274E603 50 575/3 6-4 13 25456E556
870 RPM
12VLP200M8-03 28274E004 20 208/3 4-4 13 25456E556
12VLP200M8-23/43 28274E005 20 230/460/3 6-4 13 25456E556
12VLP200M8-43 28274E006 20 460/3 8-4 13 25456E556
12VLP200M8-53 28274E007 20 575/3 8-4 13 25456E556
12VLXP200M8-03 28274E604 20 208/3 4-4 13 25456E556
12VLXP200M8-23 28274E605 20 230/460/3 6-4 13 25456E556
12VLXP200M8-43 28274E606 20 460/3 8-4 13 25456E556
12VLXP200M8-53 28274E607 20 575/3 8-4 13 25456E556
12VLP250M8-03 28274E008 25 208/3 4-4 13.5 25456E554
12VLP250M8-23/43 28274E009 25 230/460/3 4-4 13.5 25456E554
12VLP250M8-43 28274E010 25 460/3 8-4 13.5 25456E554
12VLP250M8-53 28274E011 25 575/3 8-4 13.5 25456E554
12VLXP250M8-03 28274E608 25 208/3 4-4 13.5 25456E554
12VLXP250M8-23/43 28274E609 25 230/460/3 4-4 13.5 25456E554
12VLXP250M8-43 28274E610 25 460/3 8-4 13.5 25456E554
12VLXP250M8-53 28274E611 25 575/3 8-4 13.5 25456E554
12VLP300M8-23/43 28274E012 30 230/460/3 2-4 14 25456E552
12VLP300M8-43 28274E013 30 460/3 6-4 14 25456E552
12VLP300M8-53 28274E014 30 575/3 8-4 14 25456E552
12VLXP300M8-23/43 28274E612 30 230/460/3 2-4 14 25456E552
12VLXP300M8-43 28274E613 30 460/3 6-4 14 25456E552
12VLXP300M8-53 28274E614 30 575/3 8-4 14 25456E552
12VLXP250M8-53 28274E611 25 575/3 8-4 13.5 25456E554
12VLXP300M8-23/43 28274E612 30 230/460/3 2-4 14 25456E552
12VLXP300M8-43 28274E613 30 460/3 6-4 14 25456E552
12VLXP300M8-53 28274E614 30 575/3 8-4 14 25456E552
PARTS INDEX

MY12736 / 23833A737 (11/01/22)
14
PARTS INDEX
4VL(X)P - 360 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
4VLP1000M4-43 28269F000 100 460/3 0-4 14 135321052
4VLP1000M4-53 28269F001 100 575/3 2-4 14 135321052
4VLXP1000M4-43 28269F600 100 460/3 0-4 14 135321052
4VLXP1000M4-53 28269F601 100 575/3 2-4 14 135321052
4VLP1250M4-43 28269F002 125 460/3 0-4 14.5 135321032
4VLP1250M4-53 28269F003 125 575/3 0-4 14.5 135321032
4VLXP1250M4-43 28269F602 125 460/3 0-4 14.5 135321032
4VLXP1250M4-53 28269F603 125 575/3 0-4 14.5 135321032
8SM(X)P - 360 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
8SMP1000M4-43 28271F000 100 460/3 0-4 14 135320012
8SMP1000M4-53 28271F001 100 575/3 2-4 14 135320012
8SMXP1000M4-43 28271F600 100 460/3 0-4 14 135320012
8SMXP1000M4-53 28271F601 100 575/3 2-4 14 135320012
8SMP1250M4-43 28271F002 125 460/3 0-4 14.75 135320132
8SMP1250M4-53 28271F003 125 575/3 0-4 14.75 135320132
8SMXP1250M4-43 28271F602 125 460/3 0-4 14.75 135320132
8SMXP1250M4-53 28271F603 125 575/3 0-4 14.75 135320132
360 FRAME PUMP IMPELLERS PARTS LIST

MY12736 / 23833A737 (11/01/22) 15
8VL(X)P - 360 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1750 RPM
8VLP1000M4-43 28273F000 100 460/3 0-4 13 X 12 25252D558
8VLP1000M4-53 28273F001 100 575/3 2-4 13 X 12 25252D558
8VLXP1000M4-43 28273F600 100 460/3 0-4 13 X 12 25252D558
8VLXP1000M4-53 28273F601 100 575/3 2-4 13 X 12 25252D558
8VLP1250M4-43 28273F002 125 460/3 0-4 13.75 x 12.3/4 25252D556
8VLP1250M4-53 28273F004 125 575/3 0-4 13.75 x 12.3/4 25252D556
8VLXP1250M4-43 28273F602 125 460/3 0-4 13.75 x 12.3/4 25252D556
8VLXP1250M4-53 28273F603 125 575/3 0-4 13.75 x 12.3/4 25252D556
1150 RPM
8VLP600M6-43 28273F005 60 460/3 4-4 15 25252D550
8VLP600M6-53 28273F006 60 575/3 6-4 15 25252D550
8VLXP600M6-43 28273F604 60 460/3 4-4 15 25252D550
8VLXP600M6-53 28273F605 60 575/3 6-4 15 25252D550
12VLP - 360 FRAME
CAT. NO. ENG. NO. HP VOLT/PH CORD TRIM IMPELLER
1150 RPM
12VLP600M6-43 28275F000 60 460/3 4-4 13.63 25456E553
12VLP600M6-53 28275F001 60 575/3 6-4 13.63 25456E553
12VLXP600M6-43 28275F600 60 460/3 4-4 13.63 25456E553
12VLXP600M6-53 28275F601 60 575/3 6-4 13.63 25456E553
12VLP750M6-43 28275F002 75 460/3 2-4 14 25456E552
12VLP750M6-53 28275F003 75 575/3 4-4 14 25456E552
12VLXP750M6-43 28275F602 75 460/3 2-4 14 25456E552
12VLXP750M6-53 28275F603 75 575/3 4-4 14 25456E552
PARTS INDEX

MY12736 / 23833A737 (11/01/22)
16
WIRING DIAGRAM

MY12736 / 23833A737 (11/01/22) 17
1101 MYERS PARKWAY 490 PINEBUSH ROAD, UNIT #4
ASHLAND, OHIO, USA 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
419-289-1144 800-363-PUMP
WWW.FEMYERS.COM
Warranty Rev. 12/13
STANDARD LIMITED WARRANTY
Pentair Myers® warrants its products against defects in material and workmanship for a period of 12 months from the
date of shipment from Pentair Myers or 18 months from the manufacturing date, whichever occurs first – provided
that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals
for use in pumping raw sewage, municipal wastewater or similar, abrasive-free, noncorrosive liquids.
During the warranty period and subject to the conditions set forth, Pentair Myers, at its discretion, will repair or
replace to the original user, the parts that prove defective in materials and workmanship. Pentair Myers reserves the
right to change or improve its products or any portions thereof without being obligated to provide such a change or
improvement for prior sold and/or shipped units.
Start-up reports and electrical schematics may be required to support warranty claims. Submit at the time of start-
up through the Pentair Myers website: http://forms.pentairliterature.com/startupform/startupform.asp?type=m.
Warranty is effective only if Pentair Myers authorized control panels are used. All seal fail and heat sensing devices
must be hooked up, functional and monitored or this warranty will be void. Pentair Myers will cover only the lower
seal and labor thereof for all dual seal pumps. Under no circumstance will Pentair Myers be responsible for the cost
of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight expenses to and from the
factory or an authorized Pentair Myers service facility.
This limited warranty will not apply: (a) to defects or malfunctions resulting from failure to properly install, operate or
maintain the unit in accordance with the printed instructions provided; (b) to failures resulting from abuse, accident
or negligence; (c) to normal maintenance services and parts used in connection with such service; (d) to units that
are not installed in accordance with applicable local codes, ordinances and good trade practices; (e) if the unit is
moved from its original installation location; (f) if unit is used for purposes other than for what it is designed and
manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized
Pentair Myers service provider; (h) to any unit that has been repaired using non factory specified/OEM parts.
Warranty Exclusions: PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND
THE DESCRIPTION ON THE FACE HEREOF. PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
Liability Limitation: IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL,
INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS
PRODUCT OR PARTS THEREOF. PERSONAL INJURY AND/OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER
INSTALLATION. PENTAIR MYERS DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY UNDER THIS WARRANTY, FOR
IMPROPER INSTALLATION. PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS.
Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or
consequential damages and therefore such limitations may not apply to you. No warranties or representations at any
time made by any representatives of Pentair Myers shall vary or expand the provision hereof.
MYERS
1101 Myers Parkway 490 Pinebush Road, Unit 4 www.pentair.com/pentair-myers
Ashland, Ohio, USA 44805 Cambridge, Ontario, Canada N1T 0A5
Ph: 419-289-1144 Ph: 800-363-PUMP
Warranty Rev. 12/13
WARRANTY

MY12736 / 23833A737 (11/01/22)
18
PAGE INTENTIONALLY LEFT BLANK

MY12736 / 23833A737 (11/01/22) 19
PAGE INTENTIONALLY LEFT BLANK

All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos are the property of their respective owners. Because we are
continuously improving our products and services, Pentair reserves the right to change specications without prior notice. Pentair is an equal opportunity employer.
Megger® is a registered trademark of Megger Instrument Limited.
©2022 Pentair. All Rights Reserved. MY12736 / 23833A737 (11-01-22)
1101 Myers Parkway
Ashland, OH 44805
Ph: 419.289.1144
490 Pinebush Rd., Unit 4
Cambridge, Ontario
Canada N1t 0a5
Ph: 800.363.7867
pentair.com