Finish Thompson GP22, GP32 User Manual
GP22/32 SERIES
Sealed Non-Metallic Centrifugal Pumps
Installation and Maintenance Instructions
ASSEMBLY
Unpack pump from carton and check for shipping damage.
PUMPS WITH MOTOR
No assembly required. Simply unpack the pump and motor and
examine for any shipping damage. If damage is detected, save the
packaging and notify the carrier immediately.
Remove the shipping plugs from the suction and discharge of the
pump and proceed to the “Installation Requirements” section of these
instructions.
PUMPS WITHOUT MOTORS
184JM MOTOR ADAPTER (STANDARD)
1. Unpack the pump and examine for any shipping damage. If damage
is detected, save the packaging and notify the carrier immediately.
2. Prepare to install the pump onto the motor.
a. Remove the protective shroud (Item #22) from the
Motor Adapter (item #6).
b. Install key (provided) on keyway of motor and coat with anti-
seize.
3. Align pump impeller shaft with the motor shaft and key, then push
pump onto the motor.
4. Pull the socket head bolt, impeller cap and impeller cap o-ring
(Items #4, 13, 16) from the hardware bag.
a. Install the socket head bolt through the suction of the pump with
a 5/16" hex key. Coat threads of socket head bolt with anti-seize
and tighten in a clockwise rotation. It may be necessary to hold
the motor fan blade with a screwdriver to keep motor shaft from
turning.
b. Install the impeller cap and impeller cap o-ring using a large flat
head screwdriver in a clockwise rotation.
IMPORTANT: Do not cross thread impeller cap or leakage could
occur.
5. Now install motor adapter bolts and washers (Items #12,19) and
tighten securely.
6. Verify back of impeller is not touching the housing cover by looking
into the discharge of the pump.
7. Reinstall protective shroud back onto the motor adapter.
8. Install pump according to installation instructions.
90,100/112 Motor Adapters (Metric)
1. Unpack the pump and examine for shipping damage. If damage is
detected, save the packaging and notify the carrier immediately.
2. Prepare to install the pump onto the motor.
a. Remove the protective shroud (Item #22) from the motor adapter
(item #6).
b. Install key (provided) on keyway of motor and coat with anti-
seize.
3. Align pump impeller shaft with the motor shaft and key, then push
pump onto the motor until it bottoms out.
4. Tighten the two (2) set screws (Item #25) on the motor shaft to 7.9
N•m (70 in•lbs).
5. Now install motor adapter bolts and washers (Items #12,19) and
tighten securely.
6. Verify back of impeller is not touching the housing cover by looking
into the discharge of the pump.
7. Reinstall protective shroud back onto the motor adapter.
8. Install pump according to installation instructions.
INSTALLATION
MOUNTING
Motor or base plate must be securely fastened.
PIPING
• Always support the piping near the pump to minimize stress and
strain on the pump’s casing.
• Minimize frictional losses by increasing the piping size by one
diameter.
• Use a minimal number of bends, keeping any bends at least a
distance of ten pipe diameters away from the pump.
• Install valves on the suction and discharge lines. Place the valves
within a minimum distance of ten pipe diameters away from the
pump.
• Ensure that the piping is leak free.
• Position the pump as close to the liquid source as possible.
• Maintain a flooded suction at all times.
PUMPS WITH COOLING (PRESSURE) COLLARS
A cooling collar provides a water flush to the pump’s seal. This is
necessary when pumping hot liquids or liquids that tend to build up or
crystallize around the seal faces. If your pump is supplied with a cooling collar, proper water flow and pressure are critical to the operation
of the pump.
1. Plumb a water supply to the cooling collar. Use the 1/8” NPT
threaded holes for the water inlet and drain lines. Either hard pipe
or flexible tubing is suitable.
2. Adjust the water flow and pressure of the flush/cooling water
BEFORE starting the pump.
• For pumps with bellows or multi-spring seals, supply
one to two gallons water flow per hour at 1 - 2 psi.
• For pumps with a double seal, supply one to two
gallons water flow per hour at 5 - 10 psi ABOVE the dis-
charge pressure of the pump.
CAUTIONS:
1) Never run a pump equipped with a cooling collar without
a proper water supply. Doing so will result in damage to
the pump. Use of a flow switch is recommended.
2) Do not over pressurize the cooling collar’s water supply.
Doing so can result in damage to pump components.
1
2
14
GP-32 Flanges
Non-removable
1
11
10
Item Qty. Description Part No.
Impeller Housing
2"x2" NPT, polypropylene (GP22) M100870-1
2"x2" NPT, PVDF (GP22) M100870-2
1
1
2"x2" BSP, polypropylene (GP22) 105388
2"x2" BSP, PVDF (GP22) 105388-1
3"x2" flanged, polypropylene (GP32) A101230-1
3"x2" flanged, PVDF (GP32) A101230-2
Impeller Housing Cover
2
1
Polypropylene M100868-1
PVDF M100868-2
Impeller
6-1/8" - PVDF - bellows/multispring seal models only A101761-1
5" - PVDF - bellows/multispring seal models only A101761-3
5-1/2" - PVDF - bellows/multispring seal models only A101761-2
3
1
4-1/2" - PVDF - bellows/multispring seal models only A101761-4
6-1/8" - PVDF - double seal models only A101761-5
5-1/2" - PVDF- double seal models only A101761-6
5" - PVDF - double seal models only A101761-7
4-1/2" - PVDF - double seal models only A101761-8
4
5
6
7
8
9
Impeller Cap
1
PVDF M100130
Cooling/Press Collar Only
1
Polypropylene - use with double seal pumps M100132
Motor Adapter
NEMA 184JM frame M101569
1
IEC 90 frame M101570-2
IEC 100/112 frame M101570-1
Seals (standard options - call factory for additional options)
Bellows - C/R/V J100122
1
Multispring - C/RH/V J100123
Double - C/RH/V,C/RH/V J100124
Retaining Ring
1
Stainless steel J100125
Hex Head Cap Screw
6
5/16-3 stainless steel J101058
3
13
16
4
23
9
6
18
5
17
15
8
21
7
Item Qty. Description Part No.
10
11
12
13
14
15
16
17
18
19
21
22
23
24
25
Hex Nut
6
5/16-18 stainless steel J101257
Flat Washer
6
5/16 SAE stainless steel J101293
Lock Washer
4
3/8 stainless steel J100115
Hex Head Cap Screw
1
3/8-16 x 1/2 stainless steel J100129
Housing O-ring
1
FKM J101085
EPDM J101086
Cooling Collar O-ring
1
FKM J100118
EPDM J100119
Impeller Cap O-ring
1
FKM J100132
EPDM J100133
Cooling Collar Seal (for use w/ bellows & multispring seals)
1
Lip Seal J100134
Slinger Ring
1
Neoprene M100135
Hex Screw
4
3/8" x 16 x 1" stainless steel (4 required) J100114
Cooling Collar Assembly (for use w/ bellows & multispring seals)
1
w/ FKM o-ring & lip seal A100188
Protective Guard
1
For single seal M100851
Protective Shroud Screw
1
Stainless steel J102112
Shaft Adapter with Set Screws
1
IEC 90 frame A102047
IEC 100/112 frame A102048
Knurled Cup Point Set Screw
4
1/4-20 x 1/4 stainless steel J100220
24
22
25
12
19
2
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