Pentair Myers 3VX Series Manual

NOTE! To the installer: Please make sure you provide this manual to the owner of the equipment or to the responsible
party who maintains the system.
(*Hazardous Location
Motor End)
INSTALLATION AND SERVICE MANUAL
SUBMERSIBLE SOLIDS
HANDLING PUMPS
ENGLISH: PAGES 2-12
Installation and Service Manual
For use with product built with Regal motor.
NOTE! To the installer: Please make sure you provide
this manual to the owner of the equipment or to the
responsible party who maintains the system.
Part # 23833A659 | © 2019 Pentair plc. | 01/07/19
Models
3V(X*), 3R(X*),
3RH(X*), 4V(X*)
and 4R(X*)
Used in Hazardous Locations Class I,
Division 1, Groups C & D
MYERS
3RHX Shown

2
CAUTION!
Read these safety warnings rst before installing, servicing
or operating any pump.
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
Most accidents can be avoided by using common sense.
Read the operation and maintenance instruction manual
supplied with the pump.
Do not wear loose clothing that can become entangled in
the impeller or other moving parts.
This pump is designed to handle materials that could
cause illness or disease through direct exposure.
Wear adequate protective clothing when working on the
pump or piping.
ELECTRICAL
To reduce the risk of electrical shock, pump must be
properly grounded in accordance with the National
Electric Code and all applicable state and local codes
and ordinances.
To reduce risk of electrical shock, disconnect the pump
from the power source before handling or servicing.
Any wiring to be done on pumps should be done by a
qualied electrician.
Never operate a pump with a power cord that has frayed
or brittle insulation.
Never let cords or plugs lie in water.
Never handle connected power cords with wet hands.
PUMPS
Pump builds up heat and pressure during operation;
allow time for pump to cool before handling or servicing.
Only qualied personnel should install, operate or
repair pump.
Keep clear of suction and discharge openings. Do not
insert ngers in pump with power connected.
Do not pump hazardous material not recommended for
pump (ammable, caustic, etc.).
Make sure lifting handles are securely fastened each
time before lifting.
Do not lift pump by the power cord.
Do not exceed manufacturer's recommendation for
maximum performance, as this could cause the motor
to overheat.
Secure the pump in its operating position so it cannot
tip over, fall or slide.
Keep hands and feet away from impeller when power is
connected.
Submersible solids handling pumps are not
approved for use in swimming pools, recreational water
installations, decorative fountains or any installation
where human contact with the pumped uid is common.
Do not operate pump without safety devices in place.
IMPORTANT! Myers® is not responsible for losses, injury
or death resulting from a failure to observe these safety
precautions, misuse or abuse of pumps or equipment.
GENERAL INFORMATION:
Pump Models: These instructions cover the installation
and service of the Myers pumps as listed on the front
cover. The hazardous location models are Factory Mutual
approved and listed hazardous location for hazardous
sewage locations Class 1, Division 1, Groups C,D.
Motor HP & Voltages: These pumps are offered in a
three phase wiring conguration only. Voltages will vary
according to the application.
Electrical Controls: All of these pump models must be
used with a control panel. These control panels must be
obtained from Myers or must be approved by Myers or
warranty on pump is void.
General Construction: The motor construction is
designed to meet Factory Mutual’s requirements for
Class 1, Division 1, Groups C,D sewage applications.
The hazardous location models are certied and
nameplated with this approval. The motor chamber and
seal chamber are lled with a high dielectric type oil for
improved lubrication and heat transfer of the bearings
and motor. Since the bearings have been designed
for 50,000 hours of life, the oil should never require
replacement under normal operating conditions. An
air space above the oil level in both the seal and motor
chambers is provided to allow for the expansion of the
oil when at operating temperature. The power and
control lines are sealed and strain relieved by grommet
in the cord cap, and internally through the use of a
dielectric potting resin surrounding the electrical wires.
All of the pump fasteners and shafts are made from
corrosion resistant stainless steel, while the pump
castings are made of ASTM A-48 Class 30 cast iron.

3
General Installation: Various congurations and
methods of plumbing this series of solids handling
pumps may be used; however, for ease of installation
and service a Myers®3" or 4" rail lift-out system is
recommended.
Note: If the hazardous location pumps are used in
conjunction with a rail lift-out system, it must be an
FM approved nonsparking, hazardous location system.
The Myers approved lift-out models are:
3" Liftout 4" Liftout
SRAX3030 SRAX4040
SRAX33HH SRAX44HH
If these guidelines are not followed, the Factory Mutual
approval is void.
Hazardous Location Service: These pumps are to be
used for handling sewage, wastewater and storm water
only. Do not use in other hazardous locations. These
pumps must be repaired and serviced only at Myers
authorized service centers or at the Myers factory.
Any unauthorized eld repair voids warranty, hazardous
location rating and Factory Mutual approval.
CAUTION: After the pump is installed and sewage has
entered the basin there are methane and hydrogen
sulde gases, which are poisonous. Never enter a wet
well unless the cover is open for a sucient period of
time to allow fresh air into the basin. Myers recommends
using the rail lift-out system so that no service is
required inside the basin.
Motor: Each motor is provided with heat sensor
thermostats attached directly to the motor windings.
The thermostats open if the motor windings see
excessive heat and, in turn, open the motor contactor
in the control panel, breaking the power to the pump.
When the motor is stopped due to an overheated
condition, it will not start until the motor has cooled
and the heat sensor reset button is manually pushed
on the front of the Myers control panel. This circuitry
is provided in the Myers control panel designs.
Thermostats are set to open at a temperature of 248°F
(120°C). The maximum contact rating is 18 amps at 115
VAC and 12 amps at 230 VAC. Motor winding insulation
is good for Class F (311°F, 155°C).
Note: Failure to use proper circuitry and to connect the
motor overheat protection in the control panel would
negate all warranties and FM approval.
Motor Seal Failure Warning: The seal chamber is oil
lled and provided with moisture sensing probes to
detect water leakage through the lower shaft seal. The
probes can also detect moisture present in the upper
motor housing.
The presence of water energizes a red seal leak warning
light at the control panel. This is a warning light only,
and does not stop the motor. It indicates a leak has
occurred and the pump must be repaired. Normally, this
indicates the outboard seal has leaked. Allowing the
unit to operate after the warning could cause upper seal
leakage along with motor failure.
The resistance across the moisture sensing (seal failure)
probes should be checked after a seal leak warning
light has lit. This can be done by disconnecting the
red and orange control wires from the control panel,
and measuring the resistance with an ohmmeter
between the wires. If the measured values are below
specication, the pump may have a lower seal failure
and require service.
On the Myers hazardous location control panels the seal
leak test switch tests the seal leak circuit continuity.
When pushed, the seal leak test bulb should light. If
the test bulb does not light it means either the wiring
circuitry to the seal leak probes has been broken or the
bulb has burned out.
Note: Myers control panels supply the correct circuitry
for moisture and heat sensor connections. Failure to
install the correct circuitry with proper connection
would negate warranty and FM approval.
Motor Power Cord, Control Cord and Cord Cap
Assembly: Each motor power cord has 4 conductors:
white, black, red and green. For a three phase motor the
red, black and white conductors connect to the three
line leads, and the green is connected to a good ground.
Interchanging any two line leads will reverse the rotation
of the motor.
Note: Rotation should be clockwise when observed
from the top of the pump. This can be checked by noting
which direction the pump torque is up on initial starting.
A properly rotating pump will torque counterclockwise
upon start.
The control cable has 5 conductors: black, white, red,
orange and green. White and black connect to the heat
sensor terminals in the control panels; red and orange
connect to the seal failure terminals in the control
panel; and the green connects to the ground in the
control panel.
The cord cap is epoxy potted. The cord cap provides
for a sealed wire connection. This allows the cord
cap, with cords, to be removed from the motor. An
approved hazardous location junction box is required
for hazardous locations. The control and power cables
cannot be spliced!
Note: Each cable has a green ground wire and must be
properly grounded per the National Electric Code and
local codes.

4
Electrical Motor Controls: All electrical controls and
motor starting equipment should be as specied in
these instructions. Consult factory for any acceptable
alternatives. For hazardous locations the controls and
control panel must be installed outside the hazardous
area, or approved hazardous location controls that are
intrinsically safe must be used.
Junction Box: If a junction box is used in a hazardous
location, it must be a hazardous location approved
type with hazardous location cord connectors. Wires
from the junction box must pass through a hazardous
location seal connector.
Level Sensing Controls: Intrinsically safe type oat
controls are recommended for all applications and
required for hazardous location service. An intrinsically
safe control panel relay will limit the current and voltage
to the level controls. A Myers®control panel can be
supplied with this type circuitry.
The oat level controls maintain the basin sewage water
level by controlling pump turn-on and turn-off levels.
The lower turn-off control should be set so that the
pump stops at approximately the top of the pump.
Consult the factory for any settings below this point.
The upper turn-on control should be set above the lower
turn-off control. The exact height between the two
controls is determined by the number of pump starts
desired and the depth of the basin. A maximum of 10
starts per hour should not be exceeded.
The override control is set at a specied height above
the upper turn-on control.
The alarm control is set about 6" to 12" above the
override control.
No control should be set above the inlet invert.
Electrical Connections: All electrical wiring must
be in accordance with local code and only qualied
electricians should make the installations. All wires
should be checked for shorts to ground with an
ohmmeter or megger after the connections are made.
This is important, as one grounded wire can cause
failure of the pump, control panel or personal injury.
Disassembly
With the pump located in a secure place, remove the
bolts fastening the seal housing to the volute. The
motor and impeller can now be removed as a unit.
Lay the unit down on its side. If the lower seal is to be
removed, it is recommended that the oil in the seal
chamber be drained. This can be done by removing
the lower seal chamber plug and draining the oil into a
holding container.
To remove the impeller: Using a proper wrench, the
impeller retaining bolt and washer must be removed.
This may require a piece of wood placed between the
vanes to keep the impeller from rotating while removing
the bolt. Once the bolt has been removed, tap lightly with
a hammer around the outside diameter of the impeller to
loosen from shaft and key. After removing impeller, the
seal retainer needs to be removed to expose seal.
Caution: The impeller is large and heavy and will need to
be supported.
If the lower seal needs removed, rst remove the
compression spring that rides between the impeller and
the seal assembly. Next, take a pair of screwdrivers and
remove the compression ring that surrounds the rubber
bellows on the rotating portion of the seal assembly.
Again using the screwdrivers, pry the remaining portion
of the rotating seal assembly off the shaft. The ceramic
stationary can be removed by placing a screwdriver
between the rubber and the ceramic face, and then
prying, working around the entire diameter. Note,
these parts should be discarded and a new seal
assembly installed.
If the oil in the seal chamber was drained, examine
the contents to determine if the upper seal has been
damaged. Signs of grit or other abrasive material may
indicate that the upper seal has also been damaged.
Pressurizing the motor housing assembly between 7 and
10 psi and observing any drop in pressure will indicate if
the upper seal is functioning properly.
Note: Upper seal repairs must be done at a Myers
authorized service center or at the Myers factory.
Any unauthorized eld repair voids warranty and the
hazardous location approval on the Factory Mutual listed
pump.
The wear ring can be removed from the volute for repair
or replacement. First remove the retaining screws from
the wear ring. With a soft mallet the wear ring can be
tapped out of the volute case.
Reassembly
Remove the ceramic portion of the new seal from the
package. Brush new dielectric oil or glycerine around
the rubber portion of the stationary assembly and into
the pocket in the seal housing. Note, keep the oil off the
seal face. Without scratching the seal face, press the
ceramic stationary portion into the seal housing using a
Myers seal pusher. With clean cloth, lightly wipe the face
of the seal surface to make sure it is dirt free. Remove
the rotating portion of the seal from the package and
lubricate the inside diameter of the rubber bellows
and the outside diameter of the shaft. Place the seal
over the shaft (make sure the key is removed). Evenly
press on the body of the rotational assembly and slide
it down the shaft until the seal faces meet. Once the
seal assembly is in position, place the spring over the
register on the rotational portion of the seal.
Before placing impeller on shaft, the seal spring retainer
should be placed on shaft with stepped end toward seal
spring. Position the key into the seat in the shaft. Align
the impeller onto the shaft, making sure that the seal
spring is registered properly onto the back side of the
impeller. Insert the bolt and washer assembly into the
shaft and tighten to 43 ft.-lbs.

5
Fill the seal chamber with new dielectric oil. An air gap
of 10–15% volume must be left for the expansion of the
oil when it is at operating temperature.
The brass wear ring can be aligned with the retaining
holes and tapped into place with a soft mallet.
The proper Loctite®should be applied to the bolts.
Install and tighten.
The motor and impeller assembly can be installed into
the volute. Make sure that the impeller aligns properly
with the volute. Install the volute retaining bolts
and tighten.
Air tends to trap in the pump case when water rises in
the sump or when the pump is lowered into the water
after service. To vent off this air, a small hole is drilled
into the volute casing. Be sure this vent hole is clean
after any service work on pump. Air venting is not a
problem after initial start.
CHECK LIST IF PUMP DOES NOT OPERATE PROPERLY
Checking for Moisture in Motor: Use an ohm - meter
or a megger and set on highest scale. Readings on
the large power cord between any of the conductors
red, black or white to the green conductor or to the
motor housing should be greater than 1,000,000 ohms
(1 megohm). Service work should be done only at an
authorized service facility. Note, readings should
be taken with line leads disconnected from the
control panel.
CONDITION
Red light comes on at control box.
Overload trips at control box and alarm buzzer or ashing
red light comes on due to high water level in basin.
Yellow run light stays on continuously.
PROBABLE CAUSE
This indicates some water has leaked past the lower seal
and has entered the seal chamber and made contact
with the electrode probe. Pump must be removed for
replacement of lower seal. This preventive repair will save
an expensive motor.
1. Push in on red reset button to reset overload. If overload
trips again after short run, pump has some damage and
must be removed from basin for checking.
2. Trouble may be from clogged impeller causing motor to
overload or could be from failed motor.
3. Trouble may be from faulty component in control box.
Always check control box before removing pump.
1. Indicates H-O-A switch may be in the hand position.
2. Level control switch may have failed causing pump to
continue to operate when water is below lower control.
3. Impeller may be partially clogged causing pump to
operate at very reduced capacity.
4. Gate valve or check valve may be clogged causing low
pump ow.
5. Pump may be air locked.
Resistance of Windings: Every motor winding has
a xed resistance. The windings must check close
to specication values. Verication of the proper
wiring of a dual voltage motor can also be checked by
measuring the motor winding resistance.

6
CONDITION
Circuit breaker trips.
Pump is noisy and pump rate is low.
Grease and solids have accumulated around pump and will
not pump out of basin.
PROBABLE CAUSE
1. Reset breaker by pushing completely down on handle
then back to ON position. If breaker trips again in a few
seconds it indicates excessive load probably caused by a
short in the motor or control box. Check out instructions
given with control box before pulling pump.
2. If this condition happens after an electrical storm, motor
or control box may be damaged by lightning.
3. Resistance reading of the motor with lead wires
disconnected from the control box can determine if
trouble is in motor or control box.
1. Impeller may be partially clogged with some foreign
objects causing noise and overload on the motor.
2. Impeller may be rubbing on wear ring due to bent shaft
or misalignment.
3. Pump may be operating too close to shut-off.
Check head.
1. Lower control switch may be set too high.
2. Run pump on hand operation for several minutes with
small amount of water running into basin to clean out
solids and grease. This allows pump to break suction and
surge which will break up the solids. If level switch is set
properly this condition generally will not occur.
3. Trash and grease may have accumulated around oats
causing pump to operate erratically.
172839456
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STAT OR
GROUND
SCREW
RED
RED
WHITE
BLACK
BLACK
BLACK
RED
WHITE
GREEN
GREEN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STAT OR
AB
00
200 or 230 VOLT – THREE PHASE200 or 230 VOLT – SINGLE PHASE
1
7
2
6
5
4
8
3
9
17
28
394
5
6
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STAT OR
GROUND
SCREW
RED
RED
WHITE
BLACK
BLACK
BLACK
RED
WHITE
GREEN
GREEN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STATOR
AB
00
460 VOLT – THREE PHASE
1
2
3
7
4
8
4
9
5
BLACK
BLACK
1 2 3
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STAT OR
GROUND
SCREW
RED
RED
WHITE
BLACK
BLACK
BLACK
RED
WHITE
GREEN
GREEN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STAT OR
AB
00
575 VOLT – THREE PHASE
1
2
3
BLACK
BLACK
CONTROL CORD POWER CORD
POTTING
RESIN
SPLICES
HEAT SENSOR
ON STATOR
PROBE TEST
RESISTOR
ELECTRODE
GROUND
SCREW
MOTOR
STATOR
CONNECTORS
T1
T2
T3
RED
GREEN
GREEN
BLK
Y
RED
RED
P1
P2
Y
B
R
Y
B
R
GRN
GRN
ORN
RED
Y
BLK
WIRING
DIAGRAMS

7
MOTOR SPECIFIC PARTS LISTS
2 POLE 3 HP 3 HP 3 HP 3 HP 5 HP 5 HP 5 HP 5 HP 7.5 HP 7.5 HP 7.5 HP
230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3 200/3 230-460/3 575/3
A1 STATOR 22574C210 22574C211 22574C212 22574C214 22574C200 22574C201 22574C202 22574C204 22574C215 22574C216 22574C217
A2 ROTOR 26124C000 26124C001 26124C001 26124C001 26124C002 26124C003 26124C003 26124C003 26124C002 26124C002 26124C002
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003 25833A003
A5 SHAFT SEAL 049160001 049160001 049160001 049160001 049160001 049160001 049160001 049160001 049160001 049160001 049160001
3RH/3RHX
4 POLE 1/1.5 HP 1/1.5 HP 1/1.5 HP 1/1.5 HP 2 HP 2 HP 2 HP 2 HP 3 HP 3 HP 3 HP 3 HP 5 HP 5 HP 5 HP 5 HP
230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3
A1 STATOR 24407C211 24407C212 24407C213 24407C214 24407C215 24407C216 24407C217 24407C218 24407C200 24407C201 24407C202 24407C203 24407C204 24407C205 24407C206 24407C207
A2 ROTOR 22875C108 22875C115 22875C115 22875C115 22875C110 22875C107 22875C107 22875C107 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027
A5 SHAFT SEAL 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011
3V/3VX
6 POLE 1 HP 1 HP 1 HP 1 HP 1.5 HP 1.5 HP 1.5 HP 1.5 HP 2/3 HP 2/3 HP 2/3 HP 2/3 HP
230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3
A1 STATOR 24407C223 24407C224 24407C225 24407C226 24407C227 24407C228 24407C229 24407C230 24407C231 24407C232 24407C233 24407C234
A2 ROTOR 22875C108 22875C107 22875C107 22875C107 22875C105 22875C110 22875C110 22875C110 22875C105 22875C110 22875C110 22875C110
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027
A5 SHAFT SEAL 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011
4V/4VX
4 POLE 3 HP 3 HP 3 HP 3 HP
230/1 200/3 230-460/3 575/3
A1 STATOR 24407C200 24407C201 24407C202 24407C203
A2 ROTOR 22846C100 22846C100 22846C100 22846C100
A3 BEARING 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A023 08565A023 08565A023 08565A023
A5 SHAFT SEAL 049160001 049160001 049160001 049160001
3R/3RX / 4R/4RX
4 POLE 3 HP 3 HP 3 HP 3 HP 5 HP 5 HP 5 HP 5 HP 7.5/10 HP 7.5/10 HP 7.5/10 HP
230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3 200/3 230-460/3 575/3
A1 STATOR 24407C200 24407C201 24407C202 24407C203 24407C204 24407C205 24407C206 24407C207 24407C208 24407C209 24407C210
A2 ROTOR 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105 22875C105
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027 08565A027
A5 SHAFT SEAL 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011 009200011
4V/4VX
4 POLE 5 HP 5 HP 5 HP 5 HP 7.5 HP 7.5 HP 7.5 HP
230/1 200/3 230-460/3 575/3 200/3 230-460/3 575/3
A1 STATOR 24407C204 24407C205 24407C206 24407C207 24407C208 24407C209 24407C210
A2 ROTOR 22846C100 22846C100 22846C100 22846C100 22846C100 22846C100 22846C100
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A023 08565A023 08565A023 08565A023 08565A023 08565A023 08565A023
A5 SHAFT SEAL 049160001 049160001 049160001 049160001 049160001 049160001 049160001
3R/3RX / 4R/4RX
6 POLE 1/1.5 HP 1/1.5 HP 1/1.5 HP 1/1.5 HP 2/3 HP 2/3 HP 2/3 HP 2/3 HP
230/1 200/3 230-460/3 575/3 230/1 200/3 230-460/3 575/3
A1 STATOR 24407C227 24407C228 24407C229 24407C230 24407C231 24407C232 24407C233 24407C234
A2 ROTOR 22846C110 22846C102 22846C102 22846C104 22846C100 22846C102 22846C102 22846C102
A3 BEARING 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022 08565A022
A4 BEARING 08565A023 08565A023 08565A023 08565A023 08565A023 08565A023 08565A023 08565A023
A5 SHAFT SEAL 049160001 049160001 049160001 049160001 049160001 049160001 049160001 049160001
4R/4RX

8
MOTOR END PARTS
B4
B15
B5
A3
A2
A1
A4
B14
D4
B6
A5
C4
A5
C3
C7
C2
C6
B2
B1
B12
B8
C1
B9
B3
B11
B2
B13
C5
B7
B10
Cap Screw Torque Value
3/8-16 20 ft.-lbs.
1/2-13 43 ft.-lbs.
5/8-11 93 ft.-lbs.
3/4-10 128 ft.-lbs.
7/8-14 193 ft.-lbs.
MODEL SPECIFIC PARTS LIST
Ref. Description Qty. 3RH/3RHX 3V/4V/3VX/4VX 3R/3RX/4R/4RX
C1 WASHER; SUPPORT ST 1.1/1.09 x .789/.799 1 05030A215  
C2 O-RING 1 05876A113 05876A127 05876A113
C3 SCREW; CAP SKT HD SST 3/8-16UNC-3A x 1LG 4 06106A028 19102A006 06106A028
C4 RING; RET EXTERNAL SST 1-1/4 SHAFT 1 12558A008 12558A018 12558A008
C5 RING; RET EXTERNAL ST .7874 SHAFT 1 12558A025  
C6* UPPER SEAL HOUSING 1 22576D010 (x) 22709D010 (x) 22576D010 (x)
C7* LOWER SEAL HOUSING 1 22638C000 (x) 22710C000 (x) 22853C000 (x)
*Note: Hazardous location pumps require replacement parts be designated with x where noted.
COMMON PARTS LIST
Ref. Part Number Description Qty.
B1 25343A100 PROBE; SEAL LEAK FOR 3-20HP 2
B2 05022A092 PLUG; PIPE ST GALV 1/4 HEX HD
w/LOCTITE 513 COATING 2
B3* 22590B000 (x) CAP, BEARING; UPPER 5HP GRINDER PUMP CI 1
B4 05434A043 SCREW; MACH ST 10-24UNC x 3/8 LG 1
B5 05876A112 RING, O; 5-1/2 OD x 5-1/4 ID x 1/8 1
B6 05876A114 RING, O; 7 OD x 6-3/4 ID x 1/8 1
B7 05876A123 RING, O; 4-7/8 OD x 4-5/8 ID x 1/8 1
B8 22578A100 WIRE; ELECTRODE FOR 3-20HP 2
B9 06107A015 WASHER; LOCK SHKPRF INTERNAL ST NO 10 1
B10
22569B104 35' CORD ASSEMBLY 14-4
– ORDINARY LOCATION 1
22569B031 35' CORD ASSEMBLY 10-4
– ORDINARY LOCATION 1
22569B032 35' CORD ASSEMBLY 8-4 SOOW
– ORDINARY LOCATION 1
22569B102 35' CORD ASSEMBLY 8-4 W
– ORDINARY LOCATION 1
B10
22569B702 35' CORD ASSEMBLY 14-4
– HAZARDOUS LOCATION 1
22569B631 35' CORD ASSEMBLY 10-4
– HAZARDOUS LOCATION 1
22569B632 35' CORD ASSEMBLY 8-4 SOOW
– HAZARDOUS LOCATION 1
22569B700 35' CORD ASSEMBLY 8-4 W
– HAZARDOUS LOCATION 1
B11 07597A017 SCREW; MACH FLT HD HEX SKT SST 5/16-18UNC-3A
x 1LG 2
B12* 22571D000 (x) HOUSING; MOTOR 5HP GRINDER PUMP CI 1
B13 19331A006 WASHER; SPRING FINGER
1.189 ID x 1.830 OD 2
B14 19102A023 SCREW; CAP HEX SST 302
7/16-14NC x 2-1/4 4
B15 19102A006 SCREW; CAP HEX 7/16-14 UNC SST 1-1/2 4
For use with product built with Regal motor.

9
WIRING DIAGRAMS

10
3RH/3RHX
Ref. Description Part Number Qty.
D1 CASE; VOLUTE 25984D000 1
D2 KEY; SQ SST 1/4 x 1/4 13/16 05818A066 1
D3 SCREW; CAP HEX SST 3/8-16 x 1 LG 19101A010 1
D4 SCREW; CAP HEX SST 7/16 x 1-1/4 LG 19102A020 4
D5 WASHER; RETAINER, W/PIN 23609A001 1
D6 GASKET; VELLUMOID 10-3/8 x 8-7/16 x 1/32 – 1
3V/3VX
Ref. Description Part Number Qty.
D1 CASE; VOLUTE 22945D050 1
D2 KEY; SQ SST 1/4 x 1/4 13/16 05818A066 1
D3 SCREW; CAP HEX SST 3/8-16 x 1 LG 19103A052 1
D4 SCREW; CAP HEX SST 7/16 x 1-1/4 LG 23609A002 4
D5 WASHER; RETAINER, W/PIN 19102A006 1
D6 GASKET; VELLUMOID 10-3/8 x 8-7/16 x 1/32 05231A079 1
D7 BRONZE WEAR RING 22945D061A 1
D8 1/4-20 SET SCREW 05013A013 2
4V/4VX
Ref. Description Part Number Qty.
D1 CASE; VOLUTE 22712D000 1
D2 KEY; SQ SST 1/4 x 1/4 13/16 05818A066 1
D3 SCREW; CAP HEX SST 300 1/2-13UNC x 1-1/4 LG 19103A052 1
D4 SCREW; CAP HEX SST 7/16 x 1-1/2 LG 19102A006 4
D5 WASHER; RETAINER, W/PIN 23609A002 1
D6 GASKET; VELLUMOID 10-3/8 x 8-7/16 x 1/32 05231A079 1
D7 BRONZE WEAR RING 22712D001A 1
D8 1/4–20 SET SCREW 05013A013 2
4R/4RX
D1
D6
D2
D5
D3
D2
D1
D6
D3D5
D8D7
D6
D2
D1
D3 D5
D6
D2
D1
D5
D3 D7 D8
WET END PARTS For use with product built with Regal motor.
4R/4RX
Ref. Description Part Number Qty.
D1 CASE; VOLUTE 22854D000 1
D2 KEY; SQ SST 1/4 x 1/4 11/16 05818A074 1
D3 SCREW; CAP HEX SST 3/8-16 x 1 LG 19101A010 1
D4 SCREW; CAP HEX SST 7/16 x 1-1/2 LG 19102A006 4
D5 WASHER; RETAINER, W/PIN 23609A001 1
D6 GASKET; VELLUMOID 10-3/8 x 8-7/16 x 1/32 05231A079 1
3R/3RX
Ref. Description Part Number Qty.
D1 CASE; VOLUTE 4 POLE 27706D010 1
D2 KEY; SQ SST 1/4 x 1/4 11/16 05818A074 1
D3 SCREW; CAP HEX SST 3/8-16 x 1 LG 19101A010 1
D4 SCREW; CAP HEX SST 7/16 x 1-1/2 LG 19102A006 4
D5 WASHER; RETAINER, W/PIN 23609A001 1
D6 GASKET; VELLUMOID 10-3/8 x 8-7/16 x 1/32 05231A079 1
D2 D6
D5D3
D1
3V/3VX 4V/4VX
3R/3RX
3RH/3RHX

11
IMPELLER CHART
Note: Standard non-overloading impeller diameters shown.
Pump RPM HP Trim Impeller
3RH/3RHX30M2-01 3450 3 3.50 25983B501
3RH/3RHX30M2-21 3450 3 3.50 25983B501
3RH/3RHX30M2-03 3450 3 3.50 25983B501
3RH/3RHX30M2-23 3450 3 3.50 25983B501
3RH/3RHX30M2-43 3450 3 3.50 25983B501
3RH/3RHX30M2-53 3450 3 3.50 25983B501
3RH/3RHX50M2-01 3450 5 4.25 25983B507
3RH/3RHX50M2-21 3450 5 4.25 25983B507
3RH/3RHX50M2-03 3450 5 4.25 25983B507
3RH/3RHX50M2-23 3450 5 4.25 25983B507
3RH/3RHX50M2-43 3450 5 4.25 25983B507
3RH/3RHX50M2-53 3450 5 4.25 25983B507
3RH/3RHX75M2-03 3450 7.5 4.75 25983B511
3RH/3RHX75M2-23 3450 7.5 4.75 25983B511
3RH/3RHX75M2-43 3450 7.5 4.75 25983B511
3RH/3RHX75M2-53 3450 7.5 4.75 25983B511
Pump RPM HP Trim Impeller
3V/3VX10M4-21 1750 1 5.0 22946C565
3V/3VX10M4-03 1750 1 5.0 22946C565
3V/3VX10M4-23 1750 1 5.0 22946C565
3V/3VX10M4-43 1750 1 5.0 22946C565
3V/3VX10M4-53 1750 1 5.0 22946C565
3V/3VX15M4-21 1750 1.5 5.5 22946C561
3V/3VX15M4-03 1750 1.5 5.5 22946C561
3V/3VX15M4-23 1750 1.5 5.5 22946C561
3V/3VX15M4-43 1750 1.5 5.5 22946C561
3V/3VX15M4-53 1750 1.5 5.5 22946C561
3V/3VX20M4-21 1750 2 5.75 22946C559
3V/3VX20M4-03 1750 2 5.75 22946C559
3V/3VX20M4-23 1750 2 5.75 22946C559
3V/3VX20M4-43 1750 2 5.75 22946C559
3V/3VX20M4-53 1750 2 5.75 22946C559
3V/3VX30M4-21 1750 3 6.25 22946C555
3V/3VX30M4-03 1750 3 6.25 22946C555
3V/3VX30M4-23 1750 3 6.25 22946C555
3V/3VX30M4-43 1750 3 6.25 22946C555
3V/3VX30M4-53 1750 3 6.25 22946C555
3V/3VX50M4-21 1750 5 6.75 22946C551
3V/3VX50M4-03 1750 5 6.75 22946C551
3V/3VX50M4-23 1750 5 6.75 22946C551
3V/3VX50M4-43 1750 5 6.75 22946C551
3V/3VX50M4-53 1750 5 6.75 22946C551
Pump RPM HP Trim Impeller
3R/3RX20M4-01 1750 2 5.25 22855C519
3R/3RX20M4-21 1750 2 5.25 22855C519
3R/3RX20M4-03 1750 2 5.25 22855C519
3R/3RX20M4-23 1750 2 5.25 22855C519
3R/3RX20M4-43 1750 2 5.25 22855C519
3R/3RX20M4-53 1750 2 5.25 22855C519
3R/3RX30M4-01 1750 3 6 22855C517
3R/3RX30M4-21 1750 3 6 22855C517
3R/3RX30M4-03 1750 3 6 22855C517
3R/3RX30M4-23 1750 3 6 22855C517
3R/3RX30M4-43 1750 3 6 22855C517
3R/3RX30M4-53 1750 3 6 22855C517
3R/3RX50M4-21 1750 5 6.75 22855C511
3R/3RX50M4-03 1750 5 6.75 22855C511
3R/3RX50M4-23 1750 5 6.75 22855C511
3R/3RX50M4-43 1750 5 6.75 22855C511
3R/3RX50M4-53 1750 5 6.75 22855C511
Pump RPM HP Trim Impeller
4V/4VX30M4-21 1750 3 6.0 22711C518
4V/4VX30M4-03 1750 3 6.0 22711C518
4V/4VX30M4-23 1750 3 6.0 22711C518
4V/4VX30M4-43 1750 3 6.0 22711C518
4V/4VX30M4-53 1750 3 6.0 22711C518
4V/4VX50M4-21 1750 5 7.0 22711C510
4V/4VX50M4-03 1750 5 7.0 22711C510
4V/4VX50M4-23 1750 5 7.0 22711C510
4V/4VX50M4-43 1750 5 7.0 22711C510
4V/4VX50M4-53 1750 5 7.0 22711C510
4V/4VX75M4-03 1750 7.5 7.5 22711C506
4V/4VX75M4-23 1750 7.5 7.5 22711C506
4V/4VX75M4-43 1750 7.5 7.5 22711C506
4V/4VX75M4-53 1750 7.5 7.5 22711C506
4V/4VX10M6-21 1150 1 6.0 22711C518
4V/4VX10M6-03 1150 1 6.0 22711C518
4V/4VX10M6-23 1150 1 6.0 22711C518
4V/4VX10M6-43 1150 1 6.0 22711C518
4V/4VX10M6-53 1150 1 6.0 22711C518
4V/4VX15M6-21 1150 1.5 7.0 22711C510
4V/4VX15M6-03 1150 1.5 7.0 22711C510
4V/4VX15M6-23 1150 1.5 7.0 22711C510
4V/4VX15M6-43 1150 1.5 7.0 22711C510
4V/4VX15M6-53 1150 1.5 7.0 22711C510
4V/4VX20M6-21 1150 2 7.5 22711C506
4V/4VX20M6-03 1150 2 7.5 22711C506
4V/4VX20M6-23 1150 2 7.5 22711C506
4V/4VX20M6-43 1150 2 7.5 22711C506
4V/4VX20M6-53 1150 2 7.5 22711C506
Pump RPM HP Trim Impeller
4R/4RX30M4-21 1750 3 6.0 22855C517
4R/4RX30M4-03 1750 3 6.0 22855C517
4R/4RX30M4-23 1750 3 6.0 22855C517
4R/4RX30M4-43 1750 3 6.0 22855C517
4R/4RX30M4-53 1750 3 6.0 22855C517
4R/4RX50M4-21 1750 5 6.75 22855C511
4R/4RX50M4-03 1750 5 6.75 22855C511
4R/4RX50M4-23 1750 5 6.75 22855C511
4R/4RX50M4-43 1750 5 6.75 22855C511
4R/4RX50M4-53 1750 5 6.75 22855C511
4R/4RX75M4-03 1750 7.5 7.5 22855C505
4R/4RX75M4-23 1750 7.5 7.5 22855C505
4R/4RX75M4-43 1750 7.5 7.5 22855C505
4R/4RX75M4-53 1750 7.5 7.5 22855C505
4R/4RX10M6-21 1150 1 6.0 22855C517
4R/4RX10M6-03 1150 1 6.0 22855C517
4R/4RX10M6-23 1150 1 6.0 22855C517
4R/4RX10M6-43 1150 1 6.0 22855C517
4R/4RX10M6-53 1150 1 6.0 22855C517
4R/4RX15M6-21 1150 1.5 6.75 22855C511
4R/4RX15M6-03 1150 1.5 6.75 22855C511
4R/4RX15M6-23 1150 1.5 6.75 22855C511
4R/4RX15M6-43 1150 1.5 6.75 22855C511
4R/4RX15M6-53 1150 1.5 6.75 22855C511
4R/4RX20M6-21 1150 2 7.25 22855C507
4R/4RX20M6-03 1150 2 7.25 22855C507
4R/4RX20M6-23 1150 2 7.25 22855C507
4R/4RX20M6-43 1150 2 7.25 22855C507
4R/4RX20M6-53 1150 2 7.25 22855C507

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.
1101 MYERS PARKWAY 490 PINEBUSH ROAD, UNIT 4
ASHLAND, OHIO 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
PH: 855-274-8947 PH: 800-363-7867
WWW.FEMYERS.COM WWW.FEMYERS.COM
Warranty Rev. 09/18
1101 Myers Parkway
Ashland, Ohio 44805
USA
Ph: 855-274-8947
490 Pinebush Road
Unit 4
Cambridge, Ontario N1T 0A5
Canada
Ph: 800.363.7867
www.Femyers.com