Finish Thompson SP22 User Manual

SP22 Series Self-Priming Pumps

Assembly, Installation and

Operation Manual

Literature ID No. FT08-1024G

TABLE OF CONTENTS

Important Notice .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .3

Chemical Reaction Disclaimer .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .3

Safety Precautions .........................................................................................3

SP22 Capabilities...........................................................................................4

SP22 Prime Time Curves ...................................................................................5

Section I - Assembly

Pumps with Motors ....................................................................................6

Pumps without Motors .................................................................................6

Section II - Installation . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .7

Mounting..............................................................................................7

Motor/Electrical........................................................................................8

Section III - Start-up and Operation ..........................................................................8

Section IV - Shut Down .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . 8

Flush Systems. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . 8

Maintenance ..........................................................................................9

Section V - Disassembly ....................................................................................9-12

Outer Drive Replacement ...............................................................................11

Impeller Thrust Ring ...................................................................................11

Impeller Bushing ......................................................................................11

Impeller Disassembly .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . 11

Reassembly ...........................................................................................11-12

SP22 Part Number Explanation ..............................................................................13

Spare Parts Diagram........................................................................................14

Spare Parts List . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . 15-18

Section VI - Troubleshooting .................................................................................19

Section VII - Warranty ......................................................................................19

NOTE: Maintenance videos are now available on line at www.finishthompson.com.

FTI Contacts:

Tech Service: 1-800-888-3743; techservice@finishthompson.com

Order Fax: [phone] or 1-814-455-8518

Sales: 1-800-934-9384 (toll free U.S. and Canada; 1-814-455-4478)

2

IMPORTANT NOTICE

U.S. Export Administration Regulations, pursuant to ECCN 2B350, prohibit the export or reexport to certain enumerated countries of
sealless centrifugal pumps in which all wetted materials are constructed from fluoropolymers without first applying for and obtaining
a license from the U.S. Bureau of Industry and Security (BIS). This affects all Finish Thompson magnetic-drive pumps constructed from
PVDF or lined with ETFE. Please contact the BIS (www.bis.doc.gov) or Finish Thompson with questions regarding the Regulations or a
list of the countries to which they apply.

Chemical Reaction Disclaimer

The user must exercise primary responsibility in selecting the product’s materials of construction, which are compatible with the fluid(s) that
come(s) in contact with the product. The user may consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s representative/distribu­tor agent to seek a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.

However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss arising out of
a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and fluids that come into
contact with the product’s components.

Safety Precautions

WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS UNIT. FAILURE TO FOLLOW THESE PRECAU-

TIONS CAN RESULT IN SERIOUS INJURY OR DEATH.

WARNING: Magnetic field hazard. This pump contains powerful magnets. Exposed magnets (pump not connected to motor produce
powerful magnetic fields. Individuals with cardiac pacemakers, implanted defibrillators, other electronic medical devices, metallic pros­thetic heart valves, internal wound clips (from surgery), metallic prosthetic devices or sickle cell anemia must not handle or be in the
proximity of the magnets contained inside the pump. Consult a health care provider for specific recommendations before working with this
pump.

WARNING: The SP Series are not recommended for pumping flammable or combustible liquids. During the priming process, the

pump atmosphere can become very dangerous should the pump fail to prime and overheat.

SP Series pumps can be used to pump non-flammable or non-combustible liquids in a hazardous area. However, it is important to follow
these guidelines:

1. You must select the non-sparking (Ns) bronze bump ring option. The non-sparking ring is pressed into the clamp ring or motor adapter
and prevents sparking should the motor bearings fail and the outer mag drive assembly runs out of round.

2. You must select an FTI explosion-proof motor or provide your own explosion-proof motor.

WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures.
The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place fingers between the mat­ing surfaces of the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from metal chips or particles,
items with magnetic stripes like credit cards and magnetic computer media such as floppy discs and hard drives.

WARNING: Hot surfaces. This pump is capable of handling liquids with temperatures as high as 220º F (104º C). This may cause the
outer areas of the pump to become hot as well and could cause burns.

WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking out
the motor from the power supply during maintenance or service.

WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always wear
protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materi-
als. Proper procedures should be followed for draining and decontaminating the pump before disassembly and inspection of the
pump. There may be small quantities of chemicals present during inspection.

WARNING: Never run pump at less than minimum flow or with the discharge valve closed. This could lead to pump failure.

WARNING: The pump and associated components are heavy. Failure to properly support the pump during lifting and movement

could result in serious injury or damage to the pump and components.

CAUTION: This pump should never be started without the 2 1/2 gallons (9.5 liters) of priming fluid in the housing. If the pump has a
PTFE, ceramic or silicon carbide bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAMAGE TO THE PUMP. However, the pump can
operate without liquid in the housing if the pump has a carbon bushing. The exact length of time the pump can operate dry with a carbon
bushing varies with operating conditions and environment.

3

CAUTION: Never start or operate with a closed suction valve.

WARNING: Operation without priming or against a closed discharge valve can result in high temperatures that can result in

injury or damage to pump components.

CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at least 2 feet
(61 cm) above the NPSHr (net positive suction head required).

CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed (for example,

if the pump is a 50 Hz model, do not exceed 50 Hz).

SP22 Capabilities

• Maximum Working Pressure: 90 psi (6.2 bar)

• Maximum Temperature: Polypropylene -180º F (82º C); PVDF – 220º F (104º C)

NOTE: Maximum temperature is application dependent. Consult a chemical resistance guide or the chemical manufacturer for

chemical compatibility and temperature limits.

• Maximum Lift: 25 feet (7.6 meters)

NOTE: Lift determined on fresh, cold water with 3” Schedule 40 pipe. Specific gravity affects lift capability. Divide 25 feet (7.6

meters) by the specific gravity to determine equivalent maximum lift.

• Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for occasional solids. Maximum hardness is 80 HS.
Maximum concentration is 10% by weight. If solids are being pumped, it is recommended that the pump have silicon

carbide components for best results. Pumping solids may lead to increased wear.

NOTE: While the pump is capable of being used in sump applications, it is NOT a trash pump. Care must be taken to ensure that

debris and foreign objects do not enter the pump or damage may result. FTI recommends using a 2” (50.8 mm) or 3” (76.2 mm)
strainer basket with 1/8” (3.2 mm) perforations. Regular strainer basket maintenance is required to prevent plugging and a

decrease in NPSHa so not to starve and damage the pump.

• Minimum Allowable Flow Rate

Do not allow the flow rate to drop below the minimum flow rate in the chart below:

3450/2900 rpm 1750/1450 rpm

10 US gpm (2.3 m

3

/hr) 5 US gpm (1.1 m3/hr)

• Maximum Allowable Motor Power

Do not exceed 7.5 kW (10 horsepower) for 50 Hz, 2900 rpm applications. For 60 Hz, 3450 rpm applications, the pump is capable
of starting a 15 horsepower motor but is limited to a maximum of 13 horsepower (9.7 kW) while running. Use the information in
the chart below to determine the maximum specific gravity capabilities by impeller trim for non-overloading applications. The
use of a power monitor is strongly recommended for 60 Hz applications above 10 horsepower (7.5 kW).

• Maximum Noise Level: 80 dBA (pump only)

• Maximum Specific Gravity for Non-Overloading Applications

3450 rpm (60 Hz)

Impeller

Diameter

Maximum Specific

Gravity

7” (177.8 mm) 1.0

6.5” (165.1 mm) 1.3

6” (152.4 mm) 1.6

5.5” (139.7 mm) 1.8

5” (127.0 mm) 1.8

Diameter

177.8 mm (7”) 1.35

165.1 mm (6.5”) 1.65

152.4 mm (6”) 1.8

139.7 mm (5.5”) 1.8

127.0 mm (5”) 1.8

2900 rpm (50 Hz)

Impeller

Maximum Specific

Gravity

4

• Priming Liquid Volume

Initial filling (or refilling after maintenance) of the pump housing requires (2 1/2) US gallons (9.5 liters) of liquid.

• Priming Time

Priming time varies with the impeller diameter and speed.

5

SP22 Assembly, Installation and Operation

Unpacking and Inspection

Unpack the pump and examine for any signs of shipping damage.
If damage is detected, save the packaging and notify the carrier

immediately.

Section I - Assembly

Tools Required:

3/8” Allen wrench or ballpoint hex socket, 3/16” Allen wrench,
10 mm hex socket, metric socket set (for pumps with IEC outer

drives)

Pumps with Motors

Proceed to “Installation” Section

Pumps Without Motors

NOTE: All motors must have motor feet.

1. Remove the pump, drive magnet assembly and hardware
package from the carton.

CAUTION: Keep away from metallic particles, tools and
electronics. Drive magnets MUST be free of metal chips.

WARNING: Keep the drive magnet away from the open end

of the motor adapter and barrier. Strong magnetic attraction
could allow the drive hub to enter the motor adapter result­ ing in injury or damage.

towards the motor face. Align (4) holes in the adapter with
the holes in the motor face. Install (4) bolts, lock washers
and flat washers (items 24, 25, 26) through the motor
adapter into the motor face. See figure 1.

For 100/112 with B14 flange motors
Install flange (item 10) on motor with pockets (depressions)
towards the pump motor adapter (item 8). Align (4) holes in
the adapter with the holes in the motor face. Install (4) bolts,
lock washers and flat washers (items 20, 21, 22) through
the motor adapter into the motor face.

Torque bolts to the following:
90/100/112 B14 frame (M8) = 130 in-lb (14.7 N-m)
132 B14 (M10) frame (M10) = 240 in-lb (27.1 N-m)
90 frame B5 (M10) = 240 in-lb (27.1 N-m)
100/112/132 B5 (M12) = 480 in-lb (54.3 N-m)

3. Coat the motor shaft with anti-seize compound. Insert key
supplied with motor into keyway on motor shaft.

NOTE: Make sure the motor shaft is clean and free of burrs.
The outer drive is precision machined and has a bore toler­ ance of +.0005/-0 inch.

4. Slide the outer drive magnet assembly (item 13) onto the
motor shaft until the motor shaft contacts the snap ring in
the bore of the drive. Figures 2 and 3.

2. For 184TC motors, proceed to step 3.

For 213/215 NEMA motors only
– Install the o-ring (item 14A) in
the groove in the motor adapter.
Use small amount of petroleum
jelly (or silicone grease on EPDM
o-rings) to help hold the o-ring in
place. Install the larger female

Figure 1

rabbet portion of the motor adapter flange (item 14) on the
motor face. Align the holes in the adapter with the holes in
the motor face. See figure 1.

For IEC 90, 100/112, 132 with B5 flange motors - Install
flange (item 14) on motor with pockets (depressions) side
towards the motor face. Align (4) holes in the adapter with
the holes in the motor face. install the (4) customer supplied
bolts, lock washers and flat washers through the motor
adapter into the motor face. See figure 1.

Flange hole thread size:

90 B5 = M10 x 1.5
100/112 B5 = M12 x 1.75

132 B5 = M12 x 1.75

For 90 & 132 with B14 flange & 145TC motors - Install
the flange item 14) on motor with pockets (depressions) side

Figure 2

Figure 3

WARNING: Be careful, magnets will try to attract tools.

Metric Motors: Secure the drive to the motor shaft using

bolt, lock washer and flat washer (items 21, 22, 23). Thread
the bolt into the end of the motor shaft (while holding the
outer drive to prevent it from turning). See figure 4.

Tighten the bolt to the following:

· 90 frame (M8) = 130 in-lb (14.7 N-m)

· 100/112 frame (M10) = 240 in-lb (27.1 N-m)

· 132 frame (M12) = 480 in-lb (54.3 N-m)

NEMA Motors: Install set screws (item 13B) into threaded
holes on the side of the outer drive magnet assembly. Using
a 3/16” Allen wrench, tighten to 228 in-lbs (25.8 N-m). See
figure 5.

6

Figure 4

Figure 5

NOTE: The clearance between the motor adapter and drive
magnet is tight (about .010”/.254 mm).

5. Install the pump end on the motor/drive magnet assembly.

For 182, 184, 213 and 215TC motor frame pumps, install
the o-ring (item12B) in the groove in the motor adapter
(motor end). Use a small amount of petroleum jelly (or
silicone grease on EPDM o-rings) to help hold the
o-ring in place.

Place the motor/drive on the floor with the drive and
motor face pointing up.

Firmly grab the pump and slide over the outer drive mag-
net until the motor adapter is seated in the rabbet of the
motor (184TC) or the motor adapter flange. See figures
6 and 7. The last 4-5” (10-12 cm) will have strong mag-
netic attraction between the pump and outer drive magnet.

6. Secure the pump to the motor using (4) 1/2” socket head

• Total suction lift including pipe friction loss and cor­ rections for specific gravity must not exceed 25 feet
(7.6 meters). Contact FTI for pumps installed where
the elevation exceeds 1,000 feet (305 meters).

• Install the pump as close to the suction source as possible.

Figure 6

Figure 7

cap screws, lock washers and flat washers (items 18, 19,

20). Use 3/8” Allen wrench or 3/8” ballpoint hex socket on
universal joint. See figures 8 and 9.

7. Rotate the motor fan to ensure that there is no binding in
the pump.

Figure 8

Figure 9

8. Proceed to Installation Section.

Section II - Installation

Mounting – Pump foot should be securely fastened to a solid

foundation. If the pump was received with plastic shipping shims,
these may be used as additional support for the motor feet.

CAUTION: The NPSH available to the pump must be greater
than the NPSH required. The amount of lift, frictional pipe
loss and vapor pressure must be calculated into the applica­ tion. NPSH available should be two feet (.6 meters) greater
than NPSH required.

• SP Series pumps are designed to operate in a hori-
zontal position only with discharge on the top.

• SP Series pumps self-priming capability is due to its
ability to create a vacuum in the suction piping. The suc-

tion piping MUST be airtight at fittings and connections.

• Support the piping independently near the pump to elimi­ nate any strain on the pump casing. In addition, the piping
should be aligned to avoid placing stress on the pump
casing.

• The suction side of the pump should be as straight
and short as possible to minimize pipe friction.

• The suction line should not have any high spots. This can
create air pockets that can reduce pump performance
The suction piping should be level or slope slightly
upward to the pump.

• The suction pipe should be 2” or 3”. Larger suction piping
will affect priming ability. Smaller piping affects NPSH
available and pump performance. See priming curves on
page 4 or performance curves in SP Series curve booklet.

• Provide for adequate suction submergence. Excessive
submergence will reduce pump performance.

• The end of the pipe should be at least 3” (7.6 cm) above the
bottom of the suction tank.

• If debris is in the suction tank, a strainer can be installed to
help prevent foreign matter from entering the pump. The

7

strainer must be periodically cleaned to prevent restriction.
Strainer hole size should be 1/8” (1.6 mm) with the amount
of open area equal to or greater than 2 times the suction
pipe diameter.

• It is recommended that a vacuum/pressure gage be installed
in the suction piping.

CAUTION: Do not operate the pump to check rotation until
the pump is full of liquid.

Check all electrical connections with the wiring diagram on
the motor. Make sure the voltage, frequency, phase and amp
draw comply with the supply circuit.

To verify correct rotation of the motor:

• For faster priming on installations with high lift, a foot valve
is recommended.

• Check and control valves (if used) should be installed on
the discharge line. The control valve is used for regulating
flow. Isolation valves on the suction and discharge are used
to make the pump accessible for maintenance. The check
valve helps protect the pump against damage from water
hammer. This is particularly important when the static
discharge head is high.

NOTE: If a check valve is used in the discharge line, it must
be placed at a distance at least equal to the maximum suc­ tion lift from the pump. If this cannot be done, an air vent
must be provided in the discharge line.

• If flexible hose is preferred over pipe, use a reinforced hose
rated for the proper temperature, pressure and is chemically
resistant against the fluid being pumped.

• The suction valve must be completely open to avoid
restricting the suction flow.

• When installing pumps with flanges, we recommend use of
low seating stress gaskets such as Gore-Tex

®

or Gylon®

(expanded PTFE).

• It is advisable to install a flush system in the piping to
allow the pump to be flushed before the pump is removed
from service.

NOTE: The pump is provided with a 1/2” BSPP drain in the
impeller housing.

1. Install the pump into the system.

2. Remove the fill plug and fill the housing with (2 1/2) US
gallons (9.5 liters) of the service liquid or water. Replace fill
plug and tighten until the o-ring is seated.

3. Fully open the suction and discharge valves.

4. Jog the motor (allow it to run for 1-2 seconds) and observe
the rotation of the motor fan. Refer to the directional arrow
molded into the front of the housing if necessary.

NOTE: An SP pump running backwards may not prime.

Section III - Start-up and Operation

1. Be sure the housing has been filled with 2 1/2 gallons (9.5
liters) of service liquid and the fill plug has been installed
and tightened until the o-ring is seated.

2. Open the inlet (suction) and discharge valves completely.

3. Turn the pump on. Wait for discharge pressure and flow
to stabilize (could take several minutes depending upon
suction lift). Adjust the flow rate and pressure by regulating
the discharge valve. Do not attempt to adjust the flow with
the suction valve.

Section IV - Shutdown

Turn off the motor.

NOTE: When the pump is stopped without a check valve in the
piping, liquid will flow through the pump returning to the suction
source. The SP design allows enough liquid to be retained in the
housing to allow repriming without having to refill with liquid.

• A “tee” can be installed in the discharge piping as an
alternative location for filling the housing with fluid before
pump operation.

• “Filling” is defined as filling the housing with 2 1/2 gallons
(9.5 liters) of liquid

• “Priming” is defined as evacuating all the air from the
suction piping/pump and replacing it with fluid.

Motor/Electrical

Install the motor according to NEC requirements and local
electrical codes. The motor should have an overload
protection circuit.

Wire the motor for clockwise rotation when facing the fan
end of the motor.

Flush Systems

CAUTION: Some fluids react with water; use compatible

flushing fluid.

1. Turn off the pump.

2. Completely close the suction and discharge valves.

3. Connect flushing fluid supply to flush inlet valve.

4. Connect flushing fluid drain to flush drain valve.

5. Open flushing inlet and outlet valves. Flush system until the
pump is clean.

NOTE: The drain can be used as the flushing drain valve using
appropriate customer supplied fittings. Using the drain helps to
promote superior flushing and draining results.

8

Maintenance

Recommended maintenance schedule

The recommended maintenance schedule depends upon the
nature of the fluid being pumped and the specific application.
If the pump is used on a clean fluid, it is recommended that the
pump be removed from service and examined after six months
of operation or after 2,000 hours of operation. If the pump is
used on fluids with solids, high temperatures or other items that
could cause accelerated wear this initial examination should be
sooner.

After the initial examination of the internal components and wear
items are measured, a specific maintenance schedule can be
determined. For best results, it is recommended that the pump
be removed from service annually for examination.

Section V - Disassembly

Tools Required:

3/8” Allen wrench or ballpoint hex socket, 3/16” Allen wrench,
(2) flat head screw drivers, 10 mm hex socket, metric socket set
(for pumps with IEC outer drives).

WARNING: Rotating Parts. This pump has components that

rotate while in operation. Follow local safety standards for
locking out the motor from the power supply during mainte­ nance or service.

20) securing the pump to the motor. Use 3/8” Allen wrench
or 3/8” hex socket on universal joint.

3. Firmly grab the motor adapter and pull straight up to disen­ gage the motor and pump. See figure 10.

Figure 10

For 182, 184, 213, and 215TC motor frame pumps, make
sure the o-ring (item 12B) does not fall out of the motor
adapter (motor end).

4. Place pump on bench with housing (item 1) facing up. Using
a 10 mm hex (Allen) wrench, remove (10) M12 socket head
cap screws, lock washers and flat washers (items 15, 16,

17). See figure 11.

WARNING: Chemical Hazard. This pump is used for trans-

ferring many types of potentially dangerous chemicals.
Always wear protective clothing, eye protection and follow
standard safety procedures when handling corrosive or per­ sonally harmful materials. Proper procedures should be
followed for draining and decontaminating the pump before
disassembly and inspection of the pump. There may be
small quantities of chemicals present during inspection.

WARNING: Magnetic force hazard. This pump should only

be disassembled and assembled using the recommended
procedures. The magnetic attraction is powerful enough to
rapidly pull the motor end and the wet end together. Do not
place fingers between the mating surfaces of the motor and
wet ends to avoid injuries. Keep the drive magnet and
impeller assembly away from metal chips or particles.

1. Stop the pump, lock out the motor starter, close all the
valves that are connected to the pump, and drain/decon­ taminate the pump.

WARNING: The pump must be thoroughly flushed of any

hazardous materials and all internal pressure relieved prior
to opening the pump. Allow the pump to reach ambient
temperatures prior to performing maintenance.

Figure 11

Remove the housing (item 1) by carefully inserting two flat
head screwdrivers at the locations shown in Figure 12. Slide
the screwdrivers in at the bolt holes between the metal mot­ or adapter and the housing until they stop.

2. Place the pump/motor on the floor with the pump facing
up. Remove (4) 1/2” socket head cap screws, lock washers
and flat washers (items 18, 19,

Figure 12

9

Applying equal pressure, gently pry both screwdrivers in
upward motion away from the table (to avoid damaging
sealing surface). See figure 12A. Housing is tight due to o­ ring seal on the internal “gooseneck”.

NOTE: Do not twist the screwdrivers or damage may occur
to the housing.

Figure 12A

5. Examine the housing for signs of wear or damage. Inspect
the gooseneck and suction and discharge for cracks. See
figure 13. Inspect fill and drain plug o-rings (item 2A) for
chemical attack, swelling, brittleness, cuts, etc.

9. Pull the inner volute straight off. Be careful since the impeller
shaft may come out with the inner volute. See figure 17.

10. Remove impeller/inner drive assembly (items 7A, 7, 8, 8A).
Inspect for signs of rubbing, damage and wear. See figure

18. Check the impeller thrust ring and bushing for wear. See
figure 19.

11. Remove the impeller shaft (item 9) from the barrier and
check for signs of cracking, chipping, scoring or wear. See
figure 20.

Figure 17

Figure 18

Figure 13

Figure 14

6. Carefully remove the inner volute o-ring (item 4). See figure

14. Inspect for chemical attack, swelling, brittleness, cuts, etc.

7. Pull the separator plate (item 5) off the inner volute (item 6).
Inspect for damage and cracks.

8. To remove the inner volute (item 6), pull back on the (3) snap
fit prongs one at a time so that the hook portion falls into the
channel on the inner volute. See figures 15 and 16.

Figure 15

Figure 16

Figure 20

Figure 19

12. Remove the barrier (item 11) from the motor adapter (item

12) (make sure the impeller shaft has been removed). If nec­ essary, gently tap on the backside of the barrier with a soft
rod (wood, plastic, etc). Inspect the inside and outside of the
barrier for signs of rubbing. See figure 21.

Figure 21

10

13. Remove the o-ring (item 10) from the barrier and inspect for
chemical attack, swelling, brittleness, cuts, etc.

14. Visually inspect the outer drive (item 13) for rubbing, dam­ age, corrosion or loose magnets.

For 182, 184, 213 and 215TC frame pumps only, inspect the
o-rings (item 12A, 12B and 14A if applicable) for chemical at­tack, swelling, brittleness, cuts, etc.

Outer Drive Replacement

1. Remove the setscrews (item 13B) from the side of the drive
(NEMA motors) or the bolt, lock washer and flat washer
(items 21, 22, 23) from the center of the drive (metric motors).

WARNING: Be careful, tools will want to be attracted to the

magnets.

2. Remove the drive
magnet from the motor
shaft by gently prying up
from the bottom of the
drive. See fig ure 22.

3. To reinstall the drive or a
new drive follow the instruc­ tions from Section I –

Figure 22

Assembly, Pumps without
Motors, steps 3 & 4.

Impeller Thrust Ring

The impeller thrust ring is located in the front of the impeller
shroud and is held in place with a snap-fit ridge.

Removal

1. Using a razor knife or side cutters, cut a notch out of the
thrust ring. Pull up and out of the holder. See figures 23 and 24.

Impeller Bushing

Removal

1. To remove the bushing, place the impeller/inner drive as­ sembly (items 7, 7A, 8 & 8A) with the impeller facing up in
an arbor press. If necessary support the bottom of the as­ sembly with blocks to allow the bushing to fall out. Insert
a 1” (25.4 mm) diameter plastic or wooden shaft through the
impeller and press bushing out. See figure 25.

2. To replace bushing, place the assembly on a flat surface
with the impeller thrust ring face down. With the slotted face
of the bushing facing the rear of the inner drive, align the flat
in the bushing with the flat in the inner drive magnet. See
figure 26. Gently push until bushing bottoms out.

Impeller Disassembly

Figure 25

Figure 26

To separate impeller (item 7A, 7) from the inner drive (item 8A,

8), use two flat head screwdrivers in slots provided to gently pry
apart.

Reassembly

1. Install impeller shaft (item 9) into barrier (item 11) by align­ ing the flats on the shaft with the ones in the barrier. Make
sure it is completely seated. See figure 27.

Figure 23 Figure 24

NOTE: A new impeller thrust ring will be required after removal.

Replacement

1. Place the impeller and impeller drive assembly (items 7, 7A,
8 & 8A) on a table with the eye of the impeller facing up.

2. Position the replacement impeller thrust ring in the bore of
the front shroud with the snap fit ridge towards the bottom
of the bore. Align the anti-rotation flat on the impeller thrust
ring with the flat in the impeller shroud.

3. Place the impeller and impeller drive assembly in an arbor
press. Using a soft faced arbor, gently press the impeller
thrust ring into place.

2. Carefully install the impeller/inner drive assembly (items 7A,
7, 8, 8A) by sliding it over the impeller shaft in the barrier.
See figure 28.

3. Install the inner volute (item 6) by lining up the prongs of the
barrier with the channels in the inner volute. Press down

Figure 27

Figure 28

11

evenly until the prongs snap onto the surface of the inner
volute. See figure 29.

WARNING: Magnetic force hazard. Keep fingers away from

mating surfaces.

4. Install barrier, inner volute, impeller/inner drive and impeller
shaft assembly into the motor adapter (item 12). Line up
the center of the inner volute bottom port with the center of
the motor adapter foot. See Figure 30.

NOTE: If the pump has the o-ring sealing option (available
on 184 and 215 frame pumps only), install the o-ring (item

Figure 35

Figure 29

Figure 30

12A) in the groove in the motor adapter before installing the
barrier, inner volute, impeller/inner drive and impeller shaft.
Barrier will have to be pushed into place with o-ring sealing
option.

NOTE: Bolts are not on center line.

5. Install o-ring (item 10) in groove in barrier. Make sure o-ring
is properly seated.

6. Install the separator plate (item 5) by lining up the bottom
opening of the inner volute with the opening in the plate.
Line up the slots in the separator plate with the notches in
the inner volute. See figure 31.

7. Lubricate the inner volute o-ring (item 4) with a chemically
compatible lubricant and install in the groove on the round
suction nozzle in the center of the inner volute. See figure 32.

Figure 33

Figure 34

Using uniform pressure, press the housing into place until
it is flush with the motor adapter. Rotate the housing if
necessary to line up the bolt holes in the housing with
the bolt holes in the motor adapter. Tap lightly with a soft
mallet if necessary. See figure 34. Install the housing
bolts, lock washers and flat washers (items 15, 16, 17).

9. Tighten all bolts evenly using a star pattern. Tighten to
240 in-lbs (27.1 N-m).

10. Reinstall the pump on the motor/drive magnet following
instructions found in “Assembly, Pumps without motors,”
steps 5-8.

Figure 31

Figure 32

8. Install the housing (item 1). Lubricate the inside of the
gooseneck with a chemically compatible lubricant. See
figure 35. Line up the notch on the top of the separator plate
with the tab in the housing (located inside the front of the
housing near the discharge port). See figure 33.

12

SP22 PART NUMBER EXPLANATION

NOTE: Pump end includes wetted components, drive magnet and motor adapter. The wet end includes wetted components only.

Part Number Explanation

The base model number contains standard components. Where standard components are not suitable, add the alternative compo­nent code letter after the base model number to substitute components. Example: SP22P-E-U-21 is constructed of the listed base
model components except it has an EPDM O-ring, union connections, and a 213TC motor adapter.

The model number is on the serial number label located on the motor adapter. The model number contains a base model that features certain standard components.
Compare the model number on the pump to the adjacent chart to determine if the pump contains any alternate components. Model numbers containing “P” have primary
components molded from polypropylene. Model numbers contain “V” have primary components molded from PVDF.

Base model numbers are: SP22P, SP22V

Alternative Components Price Adders

Component▼ Base▼ Alternative▼ Code▼

Bushing Carbon

O-ring Viton

Connection NPT

Impeller

Magnet

(Upgrade

for specific

gravity correc-

tions)

Motor Adaptor 182-184TC NEMA

1 (60 Hz)

7”

8-pole

Up to 13 HP (60

Hz) / 7.5 kW (50

Hz)

or PTFE T

or EPDM E

BSP B

Union U

or

or

or No Upgrade Available.

or

Steel Enforced Flange Fs

2” x 2” FRP flange Ff
3” x 2” FRP flange 3 x 2

1A 1B 1C 2 2A 2B 2C 3

6.88” 6.75” 6.63” 6.50” 6.38” 6.25” 6.13” 6.00”
3A 3B 3C 4 4A 4B 4C 5

5.88” 5.75” 5.63” 5.50” 5.38” 5.25” 5.13” 5.00”

145TC NEMA

213-215TC NEMA

IEC 90/B14 94
IEC 100/B14 04
IEC 112/B14 24
IEC 132/B14 34

IEC 90/B5
IEC 100/B5 05
IEC 112/B5
IEC 132/B5

Gas engine mounting

145

21

95

25
35
Ge

Specials Not Standard

Motor Not Standard

SiC bushing/shaft Ss

SiC bushing/impeller thrust ring/shaft Si

Hastelloy shaft Hs

Titanium Hardware TI

Non-sparking ring

O-ring vapor protection kit FKM (NEMA) Vv

O-ring vapor protection kit EPDM (NEMA)

Select Motor Reference Number from Motor Price Sheets

13

Ns

Ve

SP22 PARTS DIAGRAM

8A

11

10

9

16

15

1

2A

17

2

2

2A

3

4

12

5

6

6A

18

19

7A

7

20

8

6B

25

26

13

24

14A

14

13B

12A

12B

14

21

22

13A

23

SP22 Spare Parts List

Item Qty Description Polypropylene PVDF

Housing

NPT threads 106437 106437-1
BSP threads 106437-2 106437-3

1 1

2 2

2A 2

3 1

4 1

5 1

6 1

Fiberglass flanges 2" x 2" 106750 106750-1
Fiberglass flanges 3" x 2" 107115-2 107115-3
Steel flanges 2" x 2" 106750-2 106750-3
Unions 106749 106749-1

Fill/Drain Plug

106143 106143-1

Fill/Drain Plug O-Ring

FKM 106155
EPDM 106154

Discharge O-ring (BSP Housings Only)

FKM 105083
EPDM 105084

Inner Volute O-Ring

FKM 106770
EPDM 106771

Separator Plate

106438 106438-1

Inner Volute w/ SiC Thrust Ring & Volute/Barrier Seal (Inner Volute matches impeller trim)

#1 impeller (7.00") w/ FKM seal 107459 107459-1
#1A impeller (6.88") w/ FKM seal 107459-8 107459-9
#1B impeller (6.75") w/ FKM seal 107459-10 107459-11
#1C impeller (6.63") w/ FKM seal 107459-12 107459-13
#2 impeller (6.50") w/ FKM seal 107459-2 107459-3
#2A impeller (6.38") w/ FKM seal 107459-14 107459-15
#2B impeller (6.25") w/ FKM seal 107459-16 107459-17
#2C impeller (6.13") w/ FKM seal 107459-18 107459-19
#3 impeller (6.00") w/ FKM seal 107459-4 107459-5
#3A impeller (5.88") w/ FKM seal 107459-20 107459-21
#3B impeller (5.75") w/ FKM seal 107459-22 107459-23
#3C impeller (5.63") w/ FKM seal 107459-24 107459-25
#4 impeller (5.50") w/ FKM seal 107459-6 107459-7
#4A impeller (5.38") w/ FKM seal 107459-26 107459-27
#4B impeller (5.25") w/ FKM seal 107459-28 107459-29
#4C impeller (5.13") w/ FKM seal 107459-30 107459-31
#5 impeller (5.00") w/ FKM seal 107459-32 107459-33
#1 impeller (7.00") w/ EPDM seal 107462 107462-1
#1A impeller (6.88") w/ EPDM seal 107462-8 107462-9
#1B impeller (6.75") w/ EPDM seal 107462-10 107462-11
#1C impeller (6.63") w/ EPDM seal 107462-12 107462-13
#2 impeller (6.50") w/ EPDM seal 107462-2 107462-3
#2A impeller (6.38") w/ EPDM seal 107462-14 107462-15
#2B impeller (6.25") w/ EPDM seal 107462-16 107462-17
#2C impeller (6.13") w/ EPDM seal 107462-18 107462-19
#3 impeller (6.00") w/ EPDM seal 107462-4 107462-5
#3A impeller (5.88") w/ EPDM seal 107462-20 107462-21
#3B impeller (5.75") w/ EPDM seal 107462-22 107462-23
#3C impeller (5.63") w/ EPDM seal 107462-24 107462-25
#4 impeller (5.50") w/ EPDM seal 107462-6 107462-7
#4A impeller (5.38") w/ EPDM seal 107462-26 107462-27
#4B impeller (5.25") w/ EPDM seal 107462-28 107462-29
#4C impeller (5.13") w/ EPDM seal 107462-30 107459-31
#5 impeller (5.00") w/ EPDM seal 107462-32 107462-33

15

SP22 Spare Parts - continued

Item Qty Description Polypropylene PVDF

Volute / Barrier Seal - 16-1/8” length

6A 1

6B 1

7 1

7A 1

8 1

8A 1

9 1

10 1

11 1

12 1

12A 1

12B 1

13 1

13A 1

FKM
EPDM

Volute / Barrier Seal - 8” length

FKM
EPDM

Impeller Assembly with Thrust Ring

See SP22 Impeller Assemblies Table

SP22 Closed Impeller Thrust Ring Only

Fluorosint 106950
SiC 106951

Impeller Drive Assembly

With carbon bushing 106476 106476-1
With PTFE bushing 106476-2 106476-3
With ceramic bushing 106476-6 106476-7
With silicon carbide bushing 106476-4 106476-5

Impeller Bushing Only

Carbon J103917-1
Filled PTFE 106757
Ceramic 106757-2
SiC

Impeller Shaft

Ceramic 106450
SiC 106450-1
Hastelloy C 106450-2

Housing O-ring

EPDM 106765
FKM 106764

Barrier

106400-2 106400-3

Motor Adapter

106414-1 106414-2

Front Motor Adapter O-Ring

Buna Std. 106844
EPDM 106845
FKM 106846

Rear Motor Adapter O-Ring

Buna Std. 106847
EPDM 106848
FKM 106849

Outer Drive Magnet Assembly with Retaining Ring

143/145TC frame (includes set screws) 106457-3
182/184TC frame (includes set screws) 106453
213/215TC frame (includes set screws) 106453-1
90 frame 106457
100/112 frame 106457-1
132 frame 106457-2

Retaining Ring Only

145TC frame 105709
184TC frame 105710
213TC frame 106454
90 frame 105712
100/112 frame 105710
132 frame 106468

107458

107458-1

107457

107457-1

106757-1

16

SP22 Spare Parts - continued

Item Qty Description Polypropylene PVDF

13B 2

14 1

14A 1

Set Screws

NEMA frames only J101084

Motor Adapter Flange

213/215TC 106775 106775-1
90 B14 106781 106781-1
90 B5 106780 106780-1
100/112 B14 & 143/145TC 106777 106777-1
100/112 B5 106776 106776-1
132 B14
132 B5 106778 106778-1

Motor Adapter Flange O-Ring (NEMA 213/215 Frame Motors Only)

Buna 108165
EPDM 108166
FKM 108167

106779 106779-1

HARDWARE - ALL SP22 MODELS

Item Qty Description Stainless Steel Titanium

15 10

16 10

17 10

18 4

19 4

20 4

21 1

22 1

23 1

24* 4

25* 4

26* 4

*Customer must supply motor adapter flange bolt, lock washer and flat washer for IEC frame motors with B5 flanges

Housing Bolt

106758 106759

Housing Lock Washer

106503 106504

Housing Flat Washer

106505 106506

Motor Adapter Bolt

All available frame sizes except 213/215TC 106495 106498
213/215 TC 106511 106512

Motor Adapter Lockwasher

J101023 106499

Motor Adapter Flatwasher

106497 106500

Drive Bolt (IEC Only)

90 frame 105770 105771
100/112 frame
132 frame 106507 106508

Drive Lockwasher (IEC Only)

90 frame J102282 J103847
100/112 frame 105757 105758
132 frame 106503 106504

Drive Flatwasher (IEC Only)

90 frame 105722 105772
100/112 frame J101360 106200
132 frame 106509 106510

Motor Adapter Flange Bolt (for IEC with B14 flange and 143/145TC Frames Only)

90 Frame 108029 106513
100/112 Frame 105589 106514
132 Frame 105774 105775
143/145TC Frame J101000 107740

Motor Adapter Lock Washer (for IEC with B14 flange only)

90 Frame J102282 J103847
100/112 Frame J102282 J103847
132 Frame 105757 105758

Motor Adapter Flat Washer (for IEC with B14 flange only)

90 Frame J101293 J103845
100/112 Frame J101293 J103845
132 Frame N/A N/A

17

105774 105775

SP22 Impeller Assemblies

Thrust

Thrust

All impeller diameters listed in inches.

Ring

PTFE

SiC

Ring

PTFE

SiC

Impeller
Material

Polypro 106746 106746-10 106746-12 106746-14 106746-2 106746-16 106746-18 106746-20 106746-4 106746-22

PVDF 106746-1 106746-11 106746-13 106746-15 106746-3 106746-17 106746-19 106746-21 106746-5 106746-23

Polypro 106747 106747-10 106747-12 106747-14 106747-2 106747-16 106747-18 106747-20 106747-4 106747-22

PVDF 106747-1 106747-11 106747-13 106747-15 106747-3 106747-17 106747-19 106747-21 1067476-5 106747-23

Impeller
Material

Polypro 106746-24 106746-26 106746-6 106746-28 106746-30 106746-32 106746-8 - - -

PVDF 106746-25 106746-27 106746-7 106746-29 106746-31 106746-33 106746-9 - - -

Polypro 106747-24 106747-26 106747-6 106747-28 106747-30 106747-32 106747-8 - - -

PVDF 106747-25 106747-27 106747-7 106747-29 106747-31 106747-33 106747-9 - - -

#1 #1A #1B #1C #2 #2A #2B #2C #3 #3A

7.00" 6.88" 6.75" 6.63" 6.50" 6.38" 6.25" 6.13" 6.00" 5.88"

#3B #3C #4 #4A #4B #4C 5 - - -

5.75" 5.63" 5.50" 5.38" 5.25" 5.13" 5.00" - - -

18

Section VI - Troubleshooting

General Notes:

• Cold water will contain dissolved air. Under high lift appli­ cations, the air can come out of solution blocking suction
passages. This can lead to lack of priming, slow priming or
low flow rates.

• Do not pump liquids containing ferrous metal fines.

• If magnets decouple, stop pump immediately. Operating the
pump with the magnets decoupled will eventually weaken
the magnets.

• Contact our Technical Service Department at 1-800-888­ 3743 or by e-mail at techservice@finishthompson.com if
you have any questions regarding product operation or
repair.

No or Insufficient Discharge

• Air leaks in suction piping

• Housing not filled with priming fluid

• Suction pipe smaller than 3 inches

• Suction pipe contains high spots causing trapped air pockets

• Suction pipe excessively long (flow drops as suction pipe
gets longer)

• System head higher than anticipated

• Closed valve

• Viscosity or specific gravity too high

• Motor too large for magnet coupling rating (magnets
uncoupled)

• Suction lift too high or insufficient NPSH

• Clogged suction line, suction strainer (if used) or impeller vanes

Insufficient Pressure

• Air or gas entrained liquid

• Impeller diameter too small

• System head lower than anticipated

• Motors speed insufficient (too low) or motor rotation incorrect
(correct rotation when viewed from the fan end is clockwise)

Won’t Prime

• Did not fill housing with fluid before initially starting pump

• Closed discharge valve (valve should be open or open air
vent line)

• Leak in suction piping

• Suction pipe not submerged enough (causing a vortex or
exposing the end of the suction pipe)

• Lift exceeds pump ability (see Capabilities section)

• Suction pipe diameter too large

• Specific gravity or local atmospheric pressure (altitude/elevation)
not accounted for in lift calculations

• Mismatch of inner volute and impeller diameter

• Inner volute o-ring chemically attacked, cut, brittle, etc.

• Motor rotation incorrect (correct rotation when viewed from
the fan end is clockwise)

• Check valve installed too close to the pump.

Primes Slowly

• Mismatch of inner volute and impeller diameter

• Suction pipe diameter too large (larger than 3 inches)

• Closed discharge valve (valve should be open)

• Inner volute o-ring chemically attacked, cut, brittle, etc.

Excessive Power Consumption

• Head lower than rating

• Excessive flow

• Specific gravity or viscosity too high.

Vibration/Noise

• Loose magnet

• Drive magnet rubbing

• Pump cavitating from improper suction or feed

• Motor or piping not properly secured

• Foreign object in impeller

Section VII - Warranty

Finish Thompson, Inc (manufacturer) warrants this pump product
to be free of defects in materials and workmanship for a period of
five years from date of purchase by original purchaser. If a war­ranted defect, which is determined by manufacturer’s inspection,
occurs within this period, it will be repaired or replaced at the
manufacturer’s option, provided (1) the product is submitted with
proof of purchase date and (2) transportation charges are prepaid to
the manufacturer. Liability under this warranty is expressly limited
to repairing or replacing the product or parts thereof and is in lieu
of any other warranties, either expressed or implied. This warranty
does apply only to normal wear of the product or components.
This warranty does not apply to products or parts broken due to,
in whole or in part, accident, overload, abuse, chemical attack,
tampering, or alteration. The warranty does not apply to any other
equipment used or purchased in combination with this product. The
manufacturer accepts no responsibility for product damage or per­sonal injuries sustained when the product is modified in any way.
If this warranty does not apply, the purchaser shall bear all cost for
labor, material and transportation.

Manufacturer shall not be liable for incidental or consequential dam­ages including, but not limited to process down time, transportation
costs, costs associated with replacement or substitution products,
labor costs, product installation or removal costs, or loss of profit.
In any and all events, manufacturer’s liability shall not exceed the
purchase price of the product and/or accessories.

Ordering Spare Parts

Spare parts can be ordered from your local distributor. Always refer
to the pump model to avoid error.

Tech Service 1-800-888-3743
Literature ID No. FT08-1024G
Part Number 106783, R13, 6-4-13

19