Pentair Myers 125B User 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.
MODELS 125M/B,
150M/B and 200M/B
CENTRI-THRIFT
CENTRIFUGAL PUMPS
Part # 13800A085 | © 2015 Pentair Ltd. | 10/21/15

2
Warning! Important safety instructions! Read carefully
before installation.
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.
Safe Drinking Water Act:
This product is to be used exclusively
for non-potable water services. This product is not
anticipated to be used for human consumption so is
not designed for the low lead levels stated in the Safe
Drinking Water Act. It is illegal to use this product for
potable water applications for human consumption,
such as drinking water, oral hygiene, hand washing,
food preparation and dishwashing.
Failure to follow these instructions and comply with
all codes may cause serious bodily injury and/or
property damage.
Before installing or servicing your pump, be
certain the pump power source is turned off
and disconnected.
All installation and electrical wiring must adhere
to state and local codes. Check with appropriate
community agencies or contact your local electrical
and pump professionals for help.
Call an electrician when in doubt. Pump must be
connected to a separate electrical circuit directly from
the entrance box. There must be an appropriately
sized fuse or circuit breaker in this line. Tying into
existing circuits may cause circuit overloading, blown
fuses, tripped circuit breakers or a burned-up motor.
Do not connect pump to a power supply until the
pump is grounded. For maximum safety, a ground
fault interrupter should be used. Caution: failure
to ground this unit properly may result in severe
electrical shock.
Warning: Reduced risk of electric shock during
operation of this pump requires the provision of
acceptable grounding. If the means of connection to
the supply-connection box is other than grounded
metal conduit, ground the pump back to the
service by connecting a copper conductor, at least
the size of the circuit conductors supplying the
pump, to the grounding screw provided within the
wiring compartment.
This pump is provided with a means for grounding.
To reduce the risk of electric shock from contact
with adjacent metal parts, bond supply box to the
pump-motor-grounding means and to all metal parts
accessible including metal discharge pipes and the
like, by means of a clamp, a weld or both if necessary,
secured to the equipment-grounding terminal.
The voltage and phase of the power supply must
match the voltage and phase of the pump.
Do not use an extension cord. Above ground joints
must be made in an approved junction box.
Do not work on this pump or switch while the power
is on.
Never operate a pump with a frayed or brittle power
cord, and always protect it from sharp objects, hot
surfaces, oil and chemicals. Avoid kinking the cord.
Never service a motor or power cord with wet hands
or while standing in or near water or damp ground.
The three phase units must be wired by a qualified
electrician, using an approved starter box and
switching device.
Do not use this pump in or near a swimming pool.
Single phase motors are equipped with automatic
resetting thermal protectors. The motor may restart
unexpectedly, causing the leads to energize or pump
to turn on. Three phase motors should be protected
by proper thermal and amperage protection. (Check
local codes.)
Check for nicks in the wire and pump insulation
by using an ohmmeter and checking resistance to
ground before installing the pump and after installing
the pump. If in doubt on the proper procedure, check
with a qualified electrician.
Do not pump gasoline, chemicals, corrosives or
flammable liquids; they could ignite, explode or
damage the pump, causing injury and voiding
the warranty.
Do not run this pump with discharge completely
closed. This will create superheated water, which
could damage the seal and shorten the life of the
motor. This superheated water could also cause
severe burns. Always use a pressure relief valve, set
below the rating of the tank system.
Do not run the pump dry, fail to protect the pump from
below freezing temperatures.
Never work on the pump or system without relieving
the internal pressure.
Do not pump water above 120° F.
Never exceed the pressure rating of any
system component.
INSTALLATION
Package Contents
Each pump is carefully tested and packaged at
the factory.
Be sure all parts have been furnished and that nothing
has been damaged in shipment. Open packages and
make this check before going on job.

3
Piping
Pipes must line up and not be forced into position by
unions. Piping should be independently supported near the
pump so that no strain will be placed on the pump casing.
Where any noise is objectionable, pump should be insulated
from the piping with rubber connections. Always keep pipe
size as large as possible and use a minimum of fittings to
reduce friction losses.
Suction Piping
Suction pipe should be direct and as short as possible.
It should be at least one size larger than suction inlet
tapping and should have a minimum of elbows and fittings.
The piping should be laid out so that it slopes upward to
pump without dips or high points so that air pockets are
eliminated. The highest point in the suction piping should
be the pump inlet except where liquid flows to the pump
inlet under pressure. A foot valve must be used to keep
pump primed. Where liquid flows to the pump, it may
be desirable to use a check valve in the suction line or
discharge line to keep pump primed.
To prevent air from being drawn into suction pipe due to
a suction whirlpool, the foot valve should be submerged
at least three feet below the low water level. The suction
pipe must be tight and free of air leaks or pump will not
operate properly.
Discharge Piping
Discharge piping should never be smaller than pump
tapping and should preferably be one size larger. A gate
valve should always be installed in discharge line to serve
as a shut-off for throttling if capacity is not correct. To
protect the pump and foot valve from water hammer and to
prevent back flow, a check valve should be installed in the
discharge line between the pump and gate valve.
Electrical Connections
Be sure motor wiring is connected for voltage being used.
Unit should be connected to a separate circuit, direct from
main switch. A fused disconnect switch or circuit breaker
must be used in this circuit. Wire of sufficient size should
be used to keep voltage drop to a maximum of 5%. All
motors, unless provided with built-in overload protection,
must be protected with an overload switch, either manual or
magnetic. Three phase motors require overload protection.
Single phase motors are equipped with built-in overload
protection. Never install a pump without proper overload
protection. A flexible metallic conduit should be used to
protect the motor leads.
Priming
The pump must be primed before starting. The pump
casing and suction piping must be filled with water before
starting motor. Remove vent plug in top of casing while
pouring in priming water. A hand pump or ejector can be
used for priming when desired. When water is poured
into pump to prime, use care to remove all air before
starting motor. If pump does not start immediately, stop
and reprime.
Starting
It is good practice to close the discharge valve when
starting the pump as it puts less starting load on the
motor. When the pump is up to operating speed, open the
discharge valve to obtain desired capacity or pressure.
Do not allow the pump to run for long periods with the
discharge valve tightly closed. If the pump runs for an
extended period of time without liquid being discharged,
the liquid in the pump case can get extremely hot.
Rotation
The pump must run in direction of arrow on pump case. All
single phase motors are single rotation and leave factory
with proper rotation. Three phase motors may run either
direction. If rotation is wrong when first starting motor,
interchange any two line leads to change rotation.
Stopping
Before stopping pump, close the discharge valve. This will
prevent water hammer and is especially important on high
head pumps.
Freezing
Care should be taken to prevent the pump from freezing
during cold weather. It may be necessary, when there is
any possibility of this, to drain the pump casing when not in
operation. Drain by removing the pipe plug in the bottom of
the casing.
Rotary Seal
Centrifugal pumps are fitted only with rotary seal. This
seal is recommended for water free from abrasives. If
liquid contains abrasives, the centrifugal pump should not
be used.
Bearings
Lubricate motor bearings in accordance with motor
manufacturer’s instructions.
Single seal ball bearings are used on 125B, 150B and 200B
bearing bracket units. Proper amount of grease has been
provided in the bracket cavity between the bearings. This
should be sufficient grease for 4,000 hour operation. After
this usage the old grease should be cleaned out and new
grease added. Use only best grade ball bearing greases.

4
DISASSEMBLY INSTRUCTIONS
All pumping parts can be removed from case without
disturbing the piping.
Power Supply
Open the power supply switch contacts and remove
fuses. Disconnect the electrical wiring from the motor.
Volute Case
Drain pump case by removing drain plugs.
Remove the bolts securing volute case to pump bracket.
Pry components apart.
Impeller
Remove impeller.
Seal
Always replace both rotating assembly and stationary
ceramic seat. Do not use old stationary seat with new
rotating seal assembly.
Pry out rotating assembly of shaft seal.
Remove ceramic ring from housing.
A new shaft seal should always be used when rebuilding
a pump. All pump parts should be cleaned thoroughly
before being reassembled.
Motor
Remove four bolts holding bracket to motor and
remove motor.
Remove set screw in stub shaft coupling to disconnect
motor pump shaft.
ASSEMBLY INSTRUCTIONS
Motor
Place rubber deflector over motor shaft, slide shaft
extension into position and tighten set screws.
Assemble motor and shaft onto bracket.
Seal Installation
Insert seal seat in position by using finger pressure to
press firmly and squarely until it bottoms. The use of light
oil on the rubber element will facilitate assembly. Care
must be taken to keep oil, grease and dirt off face areas
of seal. Be sure the seal faces are not damaged during
assembly or the seal will leak during operation.
Check dimension from face of ceramic seat to shaft
shoulder. This distance should be within a tolerance
of ±1/64.
Install rotating element of seal on shaft. Be sure the
lapped sealing surface is toward seal seat and assemble
impeller. Check diameter of impeller against motor
horsepower rating to ensure proper performance.
Impeller
Secure impeller using key, impeller retainer washer, 5/16
stainless steel helical spring lockwasher and socket head
cap screw, 1" long.
Volute Case
Worn volute case will cause excessive leakage with a new
impeller, thereby reducing the amount of service obtained
from a new impeller.
Assemble gasket and volute case.
Rotate pump shaft with fingers, being sure that there is
no tight spot or binding assembly. A uniform drag of the
seal faces will be present.

5
Centri-Thrift Centrifugal Pump Parts List
Single and Three Phase –Rotary Seal or Stufng Box
Catalog Numbers 125M–2, 125M–3 1-1/2" Suction –1-1/4" Discharge
Pump Nameplate Catalog Number
Horsepower
125M–2
2
125M–3
3
Ref.
No. Description No. Req. Part No. Part No.
1 Motor – See Chart Below. 1
2 Pump Shaft Assembly – See Chart Below with corresponding Motor and Bracket. 1
3 Bracket – See Chart Below with corresponding Motor and Pump Shaft Assembly. 1
– Set Screw for Shaft Assembly, Single Phase Motor 2 05013A015 06024A001
– Set Screw for Shaft Assembly, Three Phase Motor 2 05013A015 05013A015
4 Cap Screw – Bracket to Motor, 3/8"-16NC x 1-1/8" 4 19101A016 19101A016
Cap Screw – Bracket to Motor, 1/2"-13NC x 1-1/4" 4 – 19103A004
Cap Screw – Bracket to Motor, 3/8"-16 NC x 1" 4 – 19101A013
5 Cap Screw – Bracket to Case, 3/8"-16NC x 1-1/8" 8 19101A016 19101A016
6 Lockwasher – 3/8" 12 05454A007 05454A007
Lockwasher – 1/2" 4 – 05454A004
7 Shaft Seal 1 11716A001K 11716A001K
– Nut for Studs 2 19109A021 19109A021
8 Impeller 1 11725B002 11725B003
– Key for Impeller 1 05818A025 05818A025
9 Washer – Special 1 11718A000 11718A000
– Lockwasher – 5/16" 1 05454A014 05454A014
10 Cap Screw – Stainless Steel 1 19100A004 19100A004
11 Gasket – Case to Bracket 1 05863A013 05863A013
12 Volute Case 1 11726D001 11726D001
13 Pipe Plug – 1/8" 4 05022A004 05022A004
Pipe Plug – 1/4" 1 05022A009 05022A009
14 Deflector – Rubber, for 5/8" Shaft 1 05059A318 05059A318
Deflector – Rubber, for 7/8" Shaft 1 05059A320 05059A320
Deflector – Rubber, for 1-1/8" Shaft 1 – 05059A321
Motor Horsepower 2 2 2 2 3 3 3 3 3
Pump Serial Number 654 654 756 756 654 654 157 974 974
Motor Number – – 13229A000 20051A000 RTF –RTF 21206A000 21207A000
Voltage 115/230 220/440 115/230 220/440 115/230 220/440 220/440 115/230 230/460
Phase Single Three Single Three Single Three Three Single Three
Motor Bolt Circle 5-7/8" 5-7/8" 5-7/8" 5-7/8" 7-1/4" 7-1/4" 5-7/8" 5-7/8" 5-7/8"
Motor Shaft Diameter 7/8" 7/8" 5/8" 5/8" 1-1/8" 7/8" 7/8" 5/8" 5/8"
Shaft – Rotary Seal 11723B001 11723B001 11714B001 11714B001 11914B001 RTF RTF 11714B001 11714B001
Bracket – Rotary Seal 11715D000 11715D000 11715D000 11715D000 11912D000 11912D000 11715D000 11715D000 11715D000

6
Centri-Thrift Centrifugal Pump Parts List
Single and Three Phase –Rotary Seal
Catalog Numbers 125M–2, 125M–3 1-1/2" Suction –1-1/4" Discharge
Pump Nameplate Catalog Number
Horsepower
125M–2
2
125M–3
3
Ref.
No. Description No. Req. Part No. Part No.
1 Motor – See Chart Below. 1
– Pump Shaft Assembly – See Chart Below. 1
– Bracket – See Chart Below. 1
– Set Screw for Shaft Assembly, Single Phase Motor 2 05013A015 06024A001
– Set Screw for Shaft Assembly, Three Phase Motor 2 05013A015 05013A015
– Cap Screw – Bracket to Motor, 3/8"-16NC x 1-1/8" 4 19101A016 19101A016
Cap Screw – Bracket to Motor, 1/2"-13NC x 1-1/4" 4 – 19103A004
Cap Screw – Bracket to Motor, 3/8"-16NC x 1" 4 – 19101A013
– Cap Screw – Bracket to Case, 3/8"-16NC x 1-1/8" 8 19101A016 19101A016
– Lockwasher – 3/8" 12 05454A007 05454A007
Lockwasher – 1/2" 4 – 05454A004
– Impeller 1 11725B002 11725B003
– Key for Impeller 1 05818A025 05818A025
– Washer – Special 1 11718A000 11718A000
– Lockwasher – 5/16" 1 05454A014 05454A014
– Cap Screw – Stainless Steel 1 19100A004 19100A004
2 Gasket – Case to Bracket 1 05863A013 05863A013
3 Volute Case 1 11726D001 11726D001
4 Pipe Plug – 1/8" 4 05022A004 05022A004
Pipe Plug – 1/4" 1 05022A009 05022A009
5 Deflector – Rubber, for 5/8" Shaft 1 05059A318 05059A318
Deflector – Rubber, for 7/8" Shaft 1 05059A320 05059A320
Deflector – Rubber, for 1-1/8" Shaft 1 – 05059A321
Motor Horsepower 2 2 2 2 3 3 3 3 3
Pump Serial Number 654 654 756 756 654 654 157 974 974
Motor Number – – 13229A000 20051A000 RTF –RTF 21206A000 21207A000
Voltage 115/230 220/440 115/230 220/440 115/230 220/440 220/440 115/230 230/460
Phase Single Three Single Three Single Three Three Single Three
Motor Bolt Circle 5-7/8" 5-7/8" 5-7/8" 5-7/8" 7-1/4" 7-1/4" 5-7/8" 5-7/8" 5-7/8"
Motor Shaft Diameter 7/8" 7/8" 5/8" 5/8" 1-1/8" 7/8" 7/8" 5/8" 5/8"
Shaft – Rotary Seal 11723B001 11723B001 11714B001 11714B001 11914B001 RTF RTF 11714B001 11714B001
Bracket – Rotary Seal 11715D000 11715D000 11715D000 11715D000 11912D000 11912D000 11715D000 11715D000 11715D000

7
Centri-Thrift Centrifugal Pump Parts List
Single and Three Phase –Rotary Seal or Stufng Box
Catalog Numbers 150M–2, 150M–3, 150M–5 2" Suction –1-1/2" Discharge
Pump Nameplate Catalog Number
Horsepower
150M–2
2
150M–3
3
150M–5
5
Ref.
No. Name of Part No. Req. Part No. Part No. Part No.
1 Motor – See Chart Below. 1
2 Pump Shaft Assembly – See Chart Below with corresponding Motor and Bracket. 1
3 Bracket – See Chart Below with corresponding Motor and Pump Shaft Assembly. 1
– Set Screw for Shaft Assembly, Single Phase Motor 2 05013A015 06024A001 06024A001
– Set Screw for Shaft Assembly, Three Phase Motor 2 05013A015 05013A015 06024A001
4 Cap Screw – Bracket to Motor, 3/8"-16NC x 1-1/8" 4 19101A016 19101A016 –
Cap Screw – Bracket to Motor, 1/2"-13NC x 1-1/4" 4 – – 19103A004
Cap Screw – Bracket to Motor, 3/8"-16NC x 1" 4 – 19101A013 –
5 Cap Screw – Bracket to Case, 3/8"-16NC x 1-1/8" 8 19101A016 19101A016 19101A016
6 Lockwasher – 3/8" 12 05454A007 05454A007 –
Lockwasher – 3/8" 8 – – 05454A007
Lockwasher – 1/2" 4 – 05454A004 05454A004
7 Shaft Seal 1 RTF RTF RTF
– Nut for Studs 2 19109A021 19109A021 19109A021
8 Impeller 1 12935B003 12935B001 12935B003
– Key for Impeller 1 05818A025 05818A025 05818A025
9 Washer – Special 1 12933A000 12933A000 12933A000
– Lockwasher – 5/16" 1 05454A014 05454A014 05454A014
10 Cap Screw – Stainless Steel 1 06106A008 06106A008 06106A008
11 Gasket – Case to Bracket 1 – – –
12 Volute Case 1 12937D001 12937D001 12937D001
Wearing Ring – For Units w/Wearing Ring 1 12934A000 12934A000 12934A000
13 Pipe Plug – 1/8" 4 05022A004 05022A004 05022A004
Pipe Plug – 1/4" 1 05022A009 05022A009 05022A009
14 Deflector – Rubber, for 5/8" Shaft 1 05059A318 – –
Deflector – Rubber, for 7/8" Shaft 1 – 05059A320 –
Deflector – Rubber, for 1-1/8" Shaft 1 – 05059A321 05059A321
Motor Horsepower 2 2 3 3 3 3 3 5 5
Pump Serial Number 1056 1056 1056 1056 157 974 974 1056 1056
Motor Number 13229A000 20051A000 RTF –RTF 21206A000 21207A000 18939A000 18941A000
Voltage 115/230 220/440 115/230 220/440 220/440 115/230 230/460 115/230 220/440
Phase Single Three Single Three Three Single Three Single Three
Motor Bolt Circle 5-7/8" 5-7/8" 7-1/4" 7-1/4" 5-7/8" 5-7/8" 5-7/8" 7-1/4" 7-1/4"
Motor Shaft Diameter 5/8" 5/8" 1-1/8" 7/8" 7/8" 5/8" 5/8" 1-1/8" 1-1/8"
Shaft – Rotary Seal 11714B001 11714B001 11914B001 RTF RTF 11714B001 11714B001 11914B001 11914B001
Bracket – Rotary Seal 11715D000 11715D000 11912D000 11912D000 RTF 11715D000 11715D000 11912D000 11912D000

8
Centri-Thrift Centrifugal Pump Parts List
Single and Three Phase –Rotary Seal
Catalog Numbers 200M–3, 200M–5, 200M–7-1/2 2-1/2" Suction –2" Discharge
Pump Nameplate Catalog Number
Horsepower
200M–3
3
200M–5
5
200M–7-1/2
7-1/2
Ref.
No. Name of Part No. Req. Part No. Part No. Part No.
1 Motor – See Chart Below. 1
– Pump Shaft Assembly – See Chart Below. 1
– Bracket – See Chart Below. 1
– Set Screw for Shaft Assembly, Single Phase Motor 2 06024A001 06024A001 06024A001
– Set Screw for Shaft Assembly, Three Phase Motor 2 05013A015 06024A001 06024A001
– Cap Screw – Bracket to Motor, 3/8"-16NC x 1-1/8" 4 19101A016 – –
Cap Screw – Bracket to Motor, 1/2"-13NC x 1-1/4" 4 19103A004 19103A004 19103A004
Cap Screw – Bracket to Motor, 3/8"-16NC x 1" 4 19101A003 – –
– Cap Screw – Bracket to Case, 3/8"-16NC x 1-1/8" 8 19101A016 19101A016 19101A016
– Lockwasher – 3/8" 12 05454A007 – –
Lockwasher – 3/8" 8 – 05454A007 05454A007
Lockwasher – 1/2" 4 05454A004 05454A004 05454A004
– Impeller 1 12936B002 12936B001 12936B003
– Key for Impeller 1 05818A025 05818A025 05818A025
– Washer – Special 1 12933A000 12933A000 12933A000
– Lockwasher – 5/16" 1 05454A014 05454A014 05454A014
– Tap Bolt – Stainless Steel 1 06106A008 06106A008 06106A008
2 Gasket – Case to Bracket 1 05863A013 05863A013 05863A013
3 Volute Case 1 12938D001 12938D001 12938D001
4 Pipe Plug – 1/8" 4 05022A004 05022A004 05022A004
Pipe Plug – 1/4" 1 05022A009 05022A009 05022A009
5 Deflector – Rubber, for 5/8" Shaft 1 05059A318 – –
Deflector – Rubber, for 7/8" Shaft 1 05059A320 – –
Deflector – Rubber, for 1-1/8" Shaft 1 05059A321 05059A321 05059A321
6 Wearing Ring – For Units w/Wearing Ring 1 12934A000 12934A000 12934A000
Motor Horsepower 3 3 3 3 3 5 5 7-1/2
Pump Serial Number 974 974 1056 1056 157 1056 1056 1056
Motor Number 21206A000 21207A000 RTF –RTF 18939A000 18941A000 18944A000
Voltage 115/230 230/460 115/230 220/440 220/440 115/230 220/440 220/440
Phase Single Three Single Three Three Single Three Three
Motor Bolt Circle 5-7/8" 5-7/8" 7-1/4" 7-1/4" 5-7/8" 7-1/4" 7-1/4" 7-1/4"
Motor Shaft Diameter 5/8" 5/8" 1-1/8" 7/8" 7/8" 1-1/8" 1-1/8" 1-1/8"
Shaft – Rotary Seal 11714B001 11714B001 11914B001 RTF RTF 11914B001 11914B001 11914B001
Bracket – Rotary Seal 11715D000 11715D000 11912D000 11912D000 RTF 11912D000 11912D000 11912D000

9
Parts List
Centri-Thrift Centrifugal Pumps
Belt Driven – Rotary Seal or Stufng Box
Pump No. 125B – 1-1/2" Suction – 1-1/4" Discharge
Pump No. 150B – 2" Suction – 1-1/2" Discharge
Pump No. 200B – 2-1/2" Suction – 2" Discharge
Belt Driven Head with Stufng Box
9 10 19 17 16 18 15 12 13 15
Belt Driven Head with Rotary Seal
8 1 2 6 7 10 11 9 14 12 13 25 21
16
22
24
23
17
20
18
543

10
Centri-Thrift Centrifugal Pump Parts List
Belt Driven
Pump Name and Plate Catalog Number 125B 125B 150B 200B
Pump Nameplate Serial Number 654
Plus Year Made
856
Plus Year Made
1056
Plus Year Made
1056
Plus Year Made
Suction 1-1/2" 1-1/2" 2" 2-1/2"
Discharge 1-1/4" 1-1/4" 1-1/2" 2"
Ref.
No. Name of Part No. Req. Part No. Part No. Part No.
1 Bearing Housing Only 1 11727C000 11727C000 11727C000 11727C000
2 Shaft for Belt Driven Head 1 RTF 11728B001 11728B001 11728B001
3 Bearing for Housing – Belt Driven Head 2 11729A001 11729A001 11729A001 11729A001
4 Snap Ring – Belt Driven Head 1 10848A003 10848A003 10848A003 10848A003
5 Snap Ring – Belt Driven Head 2 10848A004 10848A004 10848A004 10848A004
6 Pipe Plug – 1/4", Belt Driven Head 3 05022A060 05022A060 05022A060 05022A060
7 Deflector – Rubber, for 7/8" Shaft 1 05059A320 05059A320 05059A320 05059A320
8 Set Screw – 5/16"-18NC, 5/8" Long, Headless 2 05013A007 05013A007 05013A007 05013A007
– Key for Pulley – 3/16" x 3/16" x 1-3/4" Long 1 – 05818A015 05818A015 05818A015
9 Pump Shaft Assembly – Rotary Seal 1 11723B001 11723B001 11723B001 11723B001
– Set Screw for Shaft Assembly– 5/16"-18NC, 5/16" Long 2 05013A015 05013A015 05013A015 05013A015
10 Bracket for Use with Rotary Seal 1 11715D000 11715D000 11715D000 11715D000
11 Cap Screw – 3/8"-16NC, 1-1/8" Long, Bracket to Bearing Housing 4 19101A016 19101A016 19101A016 19101A016
12 Cap Screw – 3/8"-16NC, 1-1/8" Long, Bracket to Case 8 19101A016 19101A016 19101A016 19101A016
13 Lockwasher – 3/8" 12 05454A007 05454A007 05454A007 05454A007
14 Shaft Seal 1RTF RTF RTF RTF
15 Gasket – Case to Bracket 1 05863A013 05863A013 05863A013 05863A013
16 Volute Case with Wearing Ring 1 11726D001 11726D001 12937D001 12938D001
17 Wearing Ring Only 1RTF RTF 12934A000 12934A000
18 Pipe Plug – 1/8" 4 05022A004 05022A004 05022A004 05022A004
19 Nut for Studs 2 19109A021 19109A021 19109A021 19109A021
20 Impeller 1 11725B003 11725B003 12935B003 12936B003
21 Key for Impeller – 3/16" x 3/16" x 3/4" Long 1 05818A025 05818A025 05818A025 05818A025
22 Washer – Special 1 11718A000 11718A000 12933A000 12933A000
23 Lockwasher – 5/16" 1 05454A014 05454A014 05454A014 05454A014
24 Cap Screw – Stainless Steel 1 19100A004 19100A004 06106A008 06106A008
– Pipe Plug – 1/4" 1 05022A009 05022A009 05022A009 05022A009

11
Centri-Thrift Field Assembly Kits Parts List
125M-FA Series
150M-FA Series
200M-FA Series
Ref.
No.
Part
Number Description Qty.
– 16837A002 Kit – Cat. No. 125M-2FA –
16837A014 Kit – Cat. No. 125M-3FA –
16837A005 Kit – Cat. No. 150M-2FA –
16837A015 Kit – Cat. No. 150M-3FA –
16837A008 Kit – Cat. No. 150M-5FA –
16837A016 Kit – Cat. No. 200M-3FA –
16837A011 Kit – Cat. No. 200M-5FA –
16837A012 Kit – Cat. No. 200M-7-1/2FA –
– Kits consist of all listed
1 05059A318 Rubber Deflector –
All units except 150M-5FA,
200M-5FA, 200M-7-1/2FA
1
05059A321 Rubber Deflector –
150M-5FA, 200M-5FA, 200M-7-1/2FA
1
2 11714B001 Shaft w/Set Screws
– 125M-2FA, 125M-3FA, 150M-2FA,
150M-3FA, 200M-3FA
1
11914B001 Shaft w/Set Screws
– 150M-5FA, 200M-FA, 200M-7-1/2FA
1
05013A015 Screw – Set 5/16-18UNC x 5/16" Long
– All units except 150M-5FA, 200M-5FA,
200M-7-1/2FA
2
06024A001 Screw – Set 5/16-18UNC x 5/16" Long
– 150M-5FA, 200M-5FA, 200M-7-1/2FA
2
3 11715D000 Bracket – All 125M units, 150M-2FA,
150M-3FA, 200-3FA
1
11912D000 Bracket – 150M-5FA, 200M-5FA,
200M-7-1/2FA
1
19101A016 Screw – Cap 3/8-16UNC x 1-1/8"
– All units except 150M-5FA, 200M-5FA,
200M-7-1/2FA
4
19103A004 Screw – Cap 1/2-13UNC x 1-1/4"
– 150M-5FA, 200M-5FA, 200M-7-1/2FA
4
4RTF Seal – All units 1
Ref.
No.
Part
Number Description Qty.
5 11725B002 Impeller – 125M-2FA 1
11725B003 Impeller – 125M-3FA 1
12935B002 Impeller – 150M-2FA 1
12935B001 Impeller – 150M-3FA 1
12935B003 Impeller – 150M-5FA 1
12936B002 Impeller – 200M-3FA 1
12936B001 Impeller – 200M-5FA 1
12936B003 Impeller – 200M-7-1/2FA 1
05818A025 Key – 3/16 Sq. x 21/32" Long – All units 1
6 11718A000 Washer – All 125M units 1
12933A000 Washer – All 150M, 200M units 1
19100A004 Screw – Cap SST 5/16-18UNC x 3/4"
– All 125M units
1
06106A008 Screw – Socket Head SST
5/16-18UNC x 1" Long
– All 150M, 200M units
1
05454A014 Lockwasher – 5/16 SST – All units 1
7 05863A013 Gasket – 125M, 150M, 200M units 1
8 11726D001 Case – Volute – All 125M units 1
12937D001 Case – Volute – All 150M units 1
12938D001 Case – Volute – All 200M units 1
12934A000 Ring – Wearing
– For 150M, 200M units w/wearing ring
1
19101A016 Screw – Cap 3/8-16UNC x 1-18"
– All units
8
05022A004 Plug - Pipe 1/8" NPT – All units 4
05022A009 Plug – Pipe 1/4" NPT – All units 1
125
6
8
7
4
3

1101 MYERS PARKWAY
ASHLAND, OHIO, USA 44805
419-289-1144
WWW.FEMYERS.COM
Warranty Rev. 12/13
STANDARD LIMITED WARRANTY
CENTRIFUGAL & RECIPROCATING PUMPS
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.
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.
Seals, piston cups, packing, plungers, liners and valves used for handling clear, fresh, nonaerated water at a
temperature not exceeding 120ºF are warranted for ninety days from date of shipment. All other applications are
subject to a thirty day warranty. Accessories such as motors, engines and auxiliary equipment are warranted by
the respective manufacturer and are excluded in this standard warranty. 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.