Finish Thompson SP11, SP15 User Manual
Table of Contents
Model/Serial Number ........................................................................................................................ 3
Important Notice ............................................................................................................................... 3
Chemical Reaction Disclaimer .......................................................................................................... 3
Safety Precautions ........................................................................................................................... 3-4
SP11/15 Capabilities ........................................................................................................................ 4
Priming Times ................................................................................................................................... 5
Section 1 - Assembly ........................................................................................................................ 6
Section II - Installation ...................................................................................................................... 8
Section III - Start-up and Operation .................................................................................................. 9
Section IV - Shut Down .................................................................................................................... 10
Section V - Disassembly ................................................................................................................... 10
Section VI - Clamp Rin Replacement and Reassembly ................................................................... 14
Part Number Explanation ................................................................................................................. 17
SP11/15 Parts Diagram .................................................................................................................... 18
SP11/15 Spare Parts List .................................................................................................................19-23
Section VII - Troubleshooting ........................................................................................................... 24
Section VIII - Warranty...................................................................................................................... 25
NOTE: Maintenance videos are now available on line at www.nishthompson.com
When you see this icon in the following instructions, click on it to view
the video.
FTI Contacts:
Tech Service: 1-800-888-3743; techservice@nishthompson.com
Order Fax: 1-814-459-3460 or 1-814-455-8518
Sales: 1-800-934-9384 (toll free U.S. and Canada; 1-814-455-4478)
Model Number and Serial Number
Record the model number and serial number below for future reference. This is important information when ordering replacement parts or when technical assistance is required. The numbers are found on a label located on the motor adapter.
MODEL NUMBER = ________________________
SERIAL NUMBER = ________________________
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 uid(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 con-
struction and uids that come into contact with the product’s components.
Safety Precautions
WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS UNIT. FAIL-
URE TO FOLLOW THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.
WARNING: Magnetic eld hazard. This pump contains powerful magnets. Exposed magnets (pump not connected
to motor) produce powerful magnetic elds. Individuals with cardiac pacemakers, implanted debrillators, other elec-
tronic 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 specic recommendations before working with this pump.
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommend-
ed procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not
place ngers 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 oppy discs and hard drives.
WARNING: Not Recommended for Pumping Flammable or Combustible Liquids. During the priming process
the internal pump atmosphere can become very dangerous should the pump fail to prime and overheat.
If using the SP Series to pump non-ammable or non-combustible liquids in a hazardous area, you must follow these
guidelines:
1. Select the Ns (non-sparking) 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. Select an FTI explosionproof motor or provide your own.
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.
3
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 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: Never run pump at less than minimum ow 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 1 US gallon (3.8 liters) of priming uid in the housing. If
the pump has a PTFE, ceramic or silicon carbide bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAM-
AGE 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 run dry with a carbon bushing varies with operating conditions and environment.
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).
SP11/15 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 1 1/2” Schedule 40 pipe. Specic gravity affects lift capability.
Divide 25 feet (7.6 meters) by the specic 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
either ceramic or for best results, silicon carbide components. 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. A 1-1/2” strainer basket with
1/8” (32mm) perforations is suggested. Regular strainer basket maintenance is required to prevent plugging and
decrease in NPSHa so as not to starve and damage the pump.
Minimum Allowable Flow Rate
Do not allow the ow rate to drop below the minimum ow rate listed in the chart below.
Model 3450 rpm 1725 rpm 2900 rpm 1450 rpm
SP11 4 gpm (.9 m3/hr) 2 gpm (.5 m3/hr) .76 m3/hr (3.4 gpm) .38 m3/hr (1.7 gpm)
SP15 5 gpm (1.1 m
3
/hr) 2.5 gpm (.6 m3/hr) .95 m3/hr (4.2 gpm) .48 m3/hr (2 gpm)
Maximum Noise Level: 78 dBA (pump only)
Maximum Allowable Motor Power
Do not exceed the maximum power rating for the pump coupling.
Standard coupling for the SP11 is 6-pole; standard coupling for the SP15 is 8-pole.
• 6-pole coupling = 2 horsepower (1.5 kW)
4
SP11 / 15 Priming Times
3450 RPM; 60-Hz
0
5
10
15
20
25
30
0 1 2 3 4 5 6
Time (minutes)
Lift (ft)
0
1
2
3
4
5
6
7
8
9
Lift (m)
SP15
SP11
SP11 / 15 Priming Times
2900 RPM; 50-Hz
0
1
2
3
4
5
6
7
8
9
0 1 2 3 4 5
Time (minutes)
Lift (m)
SP15
SP11
Note: Times shown are guidelines only and may vary depending on system and piping setup
• 8-pole coupling = 3 horsepower (2.2 kW)
• 10-pole coupling = 5 horsepower (4 kW)
Priming Liquid Volume
Initial lling (or relling after maintenance) of the pump housing requires 1 US gallon (3.8 liters) of liquid.
5
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:
Metric socket or wrench set, 9/16” socket or wrench, 8 mm Allen wrench, and 3/16” Allen wrench (NEMA motors
only) and pliers (for ll/drain plugs).
Pumps with Motors
Proceed to “Installation” Section
Pumps Without Motors
NOTE: 184TC and 100/112 frame 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 resulting in injury
or damage.
2. Place motor on the fan end. For 56C/145TC and
B5 frame motors go to step 4. See gure 1.
3. For 184 NEMA and IEC motors only - Install the motor
adapter ange (item 14) on the motor face using bolts,
lock washers and at washers (items 25, 26, 27). See gure 2.
NOTE: Apply anti-seize compound on threads of the bolts.
Torque bolts to the following:
• 80 frame (M6) = 90 in-lb (10.2 N-m)
• 90/100/112 frame (M8) = 130 in-lb (14.7 N-m)
• 184 NEMA (1/2”) = 480 in-lb (54.3 N-m)
4. Coat the motor shaft with anti-seize compound. Insert key
supplied with motor into keyway on motor shaft. See gure 3.
NOTE: Make sure the motor shaft is clean and free of burrs.
The outer drive is precision machined and has a bore tolerance of +.0005/-0 inch.
5. 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 4 and 5.
Figure 1
Figure 2
Figure 3
6. Secure the drive on the motor shaft.
Figure 4 Figure 5
6
WARNING: Be careful, magnets will try to attract tools.
Metric Motors: Secure the drive to the motor shaft using bolt, lock washer and at washer (items 19, 20, 21).
Thread the bolt into the end of the motor shaft (while holding the outer drive to prevent it from turning). See
gure 6.
Tighten the bolt to the following:
* 80 frame (M6) = 90 in-lb (10.2 N-m)
* 90 frame (M8) = 130 in-lb (14.7 N-m)
* 100/112 frame (M10) = 240 in-lb (27.1 N-m)
Figure 6 - IEC
NEMA Motors: Install set screws (item 13A) 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 gure 7.
7. Install the pump end on the motor/drive magnet assembly. With the motor
facing upright, align the pump feet so that the motor feet and pump feet
are on the same side.
Tip the pump end at an angle (discharge is approximately 45º) so that it is
Figure 7 - NEMA
just touching the edge of the outer drive magnet assembly. See gure 8.
Carefully lower the pump onto the drive magnet assembly by tipping discharge
forward to 90º and dropping straight down. The last 3-4 inches (8-10 cm) before
the pump reaches the motor will have STRONG magnetic attraction between the
pump and outer drive magnet assembly.
8. Secure the pump to the motor with (4) 3/8” bolts, lock washers
and at washers (items 22, 23. 24). See gures 9 and 10.
Figure 9
Figure 10
NOTE: Apply anti-seize compound on the threads of the bolts.
NOTE: B5 motors will require customer supplied hardware.
9. Rotate the motor fan to ensure that there is no binding in the pump.
Figure 8
10. Install the plastic foot (item 15) to the motor adapter (item 12D). Use the longer M6 bolts, lock washers and at
washers (items 28A, 29, and 30) for the front bolt holes towards the clamp ring. See gure 40 on page 15.
11. Use the shorter M6 bolts, lock washers, and at washers (items 28, 29, and 30 on page 15) for the rear bolt holes
towards the motor face. Note: Nuts (item 31) are glued into the rear of the motor adapter to help with the installation
of the rear bolts. Make sure the nuts are still in place. See gure 41 on page 15. Tighten bolts to 5 ft-lbs (6.8 N-m).
7
Section II - Installation
Mounting -
Pump foot should be securely
fastened to a solid foundation. If
the pump was received with plastic
shipping shims, it is possible to
use these as additional support
for the motor feet (though not
required).
NOTE: B5 pumps with
100/112 frame do not include a
pump foot.
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 application.
NPSH available should be 2 feet
(.6 meters) greater than NPSH
required.
SP Piping Diagram
• Total suction lift including pipe friction loss and corrections for specic gravity must not exceed 25 feet (7.6 meters).
NOTE: Maximum suction lift is reduced by 1.13 feet (.34 meters) for every 1,000 feet (304 meters) of altitude.
• Install the pump as close to the suction source as possible.
• SP Series pumps are designed to operate in a horizontal 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 suction
piping MUST be airtight at ttings and connections.
• Support the piping independently near the pump to eliminate 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 1 1/2” (38 mm). Larger suction piping will affect priming ability. Smaller piping affects
NPSH available and pump performance.
• 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 a strainer is used, it must be periodically cleaned to prevent restriction.
• It is recommended that a vacuum/pressure gage be installed in the suction piping.
• 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 regulat-
ing ow. 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.
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