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KC11 SERIES
Sealless Non-Metallic Centrifugal Pumps
Installation & Maintenance Instructions
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ASSEMBLY
WARNING: Magnet field hazard. This pump contains powerful rare
earth magnets. When the pump is disassembled (not connected to a
motor) and the magnets are exposed, these magnets product powerful magnetic fields. Individuals with cardiac pacemakers, implanted
defibrillator, 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.
Unpack pump from carton and check for shipping damage.
6. Install the wet end assembly by grasping the discharge with your
right hand the “fins” (marked 3 and 5 in Figure 2) with your left
hand. Carefully align the wet end with the motor adapter and
allow the magnets to pull it into the place.
1
3
5
Figure 2
4
2
PUMPS WITH MOTORS
Remove shipping caps and inserts from suction and discharge, and
proceed to installation instructions.
PUMPS WITHOUT MOTORS - 145TC
1. Remove pump end assembly from box.
2. Remove two Phillips pan head screws (item 7) and hex nuts (item
9) from impeller housing. Then remove wet end assembly from
motor adapter.
3. Remove hardware package from box.
4. Install motor adapter (item 4) onto motor. Place 3/8” flat washers
(item 15) between the motor adapter and the motor face. Flat washers
must be aligned with motor adapter mounting holes. Align motor
adapter with motor rabbet and secure with socket head cap screws
(item 10).
5. Continue to step 5 of ASSEMBLY - PUMPS WITHOUT MOTORS ALL OTHER MOTORS.
ALL OTHER MOTORS
1. Remove pump end assembly from box.
CAUTION: Strong magnets present. Keep metal objects and metallic
chips/particles away from pump components.
2. Remove two Phillips pan head screws (item 7) and hex nuts (item
9) from impeller housing, and remove wet end assembly from motor
adapter.
3. Remove hardware package from box.
4. Install motor adapter (item 4) onto motor and secure with socket
head cap screws (item 10) and lock washers (item 11). Refer to
Figure 6.
5. Coat the motor shaft with anti-seize compound. Slide drive magnet
assembly (item 5) onto motor shaft keeping shaft key in place.
Installation dimension from front of drive magnet assembly to
face of motor adatper is .180 ± .010 inches (4.57 mm ± .25 mm).
Tighten 2 set screws (item 5A) with a 3/16” “T” handle Allen
wrench to 228 in-lbs (25.8 N-m). A spacing tool is available for
setting proper dimension (p/n A103188). See Figure 1.
IMPORTANT: Verify the tightness of the set screws in the drive
magnet assembly prior to operation.
.180 ± .010
(4.57 mm ± .25 mm)
Motor Adapter
Figure 1
(Item 5)
Drive Magnet Assembly
(Item 4)
2
WARNING: Components can slam together from strong magnets.
Do not allow fingers to get between the wet end and the motor
adapter.
Align mounting holes and install Phillips pan head screws (item
7) and hex nuts (item 9). Hand tighten screws to 30 in-lbs (3.34
N-m) of torque using the pattern shown in Figure 2.
Note: Plastic pumps will expand and contract with temperature
so periodically check and hand tighten the Phillips head pan
screws.
7. Remove the two piece shipping plug and insert from the suction
of the housing after the pump has been placed into the system
and just before you attach the piping. Keep the shipping plug for
use when disassembling the pump. Always use the shipping
plug when assembling or disassembling the wet end to protect
the internal parts.
8. Install pump into system according to installation instructions
below.
INSTALLATION
MOUNTING
Motor or base plate should be securely fastened.
PIPING
1. Support piping near pump to eliminate any strain on pump
casings.
2. To minimize head loss from friction:
a. Increase pipe size by 1 diameter.
b. Use minimal number of pipe bends.
3. Keep bends a minimum of 10 pipe diameters from suction an
discharge.
4. Position pump as close to liquid source as possible.
5. Maintain a flooded suction.
6. Ensure that piping does not leak.
7. Install valves on suction and discharge lines (a minimum of 10
pipe diameters from pump).
8. For units in a suction lift system, install appropriate piping in the
discharge to allow priming of pump.
9. The suction valve should be fully open to avoid restricting suction flow.
IMPORTANT: To protect the pump if prime is lost, use one of
the following: (1) pressure switch on the discharge; (2) vacuum
switch on the suction; (3) a motor minder to monitor motor current.
10. When pumping liquids which may solidify or crystallize, a flush
system should be added to the piping. See Figure 3. Install
water inlet and outlet valves as shown.
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Figure 3
Suction
Valve
Water Outlet
Valve
Discharge Valve
Water Inlet Valve
MOTOR/ELECTRICAL
Only qualified personnel trained in the safe installation and operation of
this equipment should install the motor. Install the motor according to
National Electric Code, NEMA MG-2, IEC standards requirements and/or
applicable local electrical codes. The voltage and frequency variations of
the power supply should never exceed the limits established in the applicable standard. Prior to connecting to the power line, check nameplate
voltage, rotation connection and ensure proper grounding. Sufficient ventilation area should be provided to insure proper operation and cooling of
the motor. The motor must be installed with a suitable overload protection circuit. For three phase motors it is recommended to install a phase
failure protection device. Download the motor manual from the specific
motor manufacturers’ website for additional information concerning motor installation, safety and maintenance instructions.
Wire the motor for clockwise rotation when facing the fan end of the
motor.
CAUTION: Do not operate the pump to check rotation until
the pump is full of liquid or damage may occur even if the motor is
“bumped” to check motor rotation direction.
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.
If utilized, verify that power monitors or variable frequency drives have been
properly installed according to the manufacturer’s instructions.
.
IMPORTANT: To verify correct motor rotation: (1) Install pump into
system. (2) Fully open suction and discharge valves. (3) Allow fluid to
flow into the pump. Do not allow pump to run dry (PTFE and ceramic
bushings cannot be run dry without damage to pump components). (4)
Jog motor (allow it to run for one or two seconds) and observe rotation
of motor fan. Correct rotation is clockwise as viewed from motor fan.
Refer to directional arrow on pump.
OPERATION
FLOODED SUCTION SYSTEM
1. Fully open suction and discharge valves.
2. Start the pump and check liquid flow. If no flow, see troubleshooting section.
3. Adjust flow rate and pressure by regulating discharge valve. Do
not attempt to adjust flow with the suction valve.
SUCTION LIFT SYSTEM
1. Fully open suction and discharge valves.
2. Prime system by filling priming chamber and suction line with
liquid to be pumped. Allow time for trapped air to work its way
out.
3. Start the pump and check liquid flow. If no flow, see troubleshooting section.
4. Adjust flow rate and pressure by regulating discharge valve. Do
not attempt to adjust flow with the suction valve.
FLUSH SYSTEMS
1. Fully close suction and discharge valves.
2. Connect water supply to water inlet valve.
3. Connect drain hose to water outlet valve.
4. Open inlet and outlet valves and flush system until pump is clean
(approximately 5 minutes).
MAINTENANCE
DISASSEMBLY
1. Disconnect power. Remove electrical wiring and mounting bolts to
floor or base plate.
2. Close suction and discharge valves, and disconnect piping.
3. Install the two-piece shipping plug into the suction of the housing.
Remove the 5 Phillips pan head screws and hex nuts (items 7 and
9).
4. Securely clamp or hold motor in place. Remove wet end by gripping the discharge with your right hand while gripping the two
fins marked 3 and 5 in figure 2. With a tight grip, pull the wet end
straight out of the motor adapter using one quick motion.
WARNING: Components can slam together from strong mag-
nets. Keep fingers away from area between housing and motor
adapter.
5. To disassemble wet end, remove the 4 Phillips head screws (item
13).
6. Remove impeller housing (item 1) from barrier (item 3), and pull
out the impeller assembly (item 2). Remove o-ring (item 6).
To remove drive magnet assembly (item 5), insert a 3/16" hex
wrench in the access hole on motor adapter top and loosen the 2
set screws (item 5A). Remove the drive assembly from the motor shaft.
To remove the drive magnet assembly, use a hook-type puller
through the 1/2" hole or a yoke-type puller through the 3/8"
threaded holes. Pull the drive by pushing off of the end of the
motor’s shaft. Always coat the motor shaft with an anti-seize
compound prior to reinstalling.
CAUTION: Strong magnets present. Keep metal objects and
metallic chips/particles away from pump components.
EXAMINATION
1. Check impeller drive bushing (item 2A), thrust ring (item 2B), ceramic thrust rings and shaft for cracks, chips, scoring or excess
wear (See Figure 4). Replace as required.
Bushing
(Item 2B)
Teflon Thrust Ring
.020 MIN. Groove Height
(Item 2A)
Carbon
2. Check for loose magnets on drive assembly or rubbed areas on
impeller or barrier assemblies. Contact your distributor or FTI
Technical Service if a problem is found.
BUSHING AND THRUST RING REPLACEMENT
1. To remove the bushing, place the impeller assembly (item 2) in an
arbor press. Insert a 3/4" diameter plastic or wood shaft through
the eye of the impeller and press bushing out. Refer to Figure 5.
Figure 4
.515" Max. Dia.
Front Face
.020 MIN.
Groove Height
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Figure 5
2. To replace the bushing, place the top of the impeller on an arbor
press with the thrust ring (item 2B) face down. Insert the front of
the bushing (see figure 4) into the center of the impeller, aligning
the flat on the bushing with the flat in the impeller. Press into
place until the rear of the bushing (the slotted end) is .855 below
the bottom of the impeller. An installation tool (P/N M102392) is
available to aid in proper installation.
3. The impeller thrust ring (item #2B) can be removed from the impeller
body (item #2) by gently pulling the ring from the impeller cover.
4. To replace the thrust ring, align the flat on the ring (grooved side
up) with the flat on inside of the impeller assembly (item 2), and
press into place.
Note: Protect thrust ring face with wood or plastic and avoid tilting
of the ring.
REASSEMBLY
WET END SUBASSEMBLY
1. Install o-ring (item 6) onto lip of barrier assembly (item 3).
2. Make sure impeller assembly is free of metal chips. Position
impeller assembly (item 2) onto shaft and lower into barrier.
3. Lubricate the o-ring with a chemically compatible lubricant and install
impeller housing (item 1) onto barrier, making sure to align matching bosses on barrier with recesses in impeller housing. Install 4
Phillips head screws and tighten carefully, do not overtighten.
4. For reassembly of wet end to motor, refer to assembly section,
page 1, steps 6- 8.
CAPABILITIES
Maximum Working Pressure:
35 psi (2.4 bar) polypropylene
45 psi (3.1 bar) PVDF
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.
TROUBLESHOOTING
NO DISCHARGE
1. Pump not primed.
2. Discharge head too high.
3. Suction lift too high. Insufficient NPSH.
4. Closed valve.
5. Viscosity too high (magnets uncoupled).
INSUFFICIENT DISCHARGE
1. Air leaks in suction piping.
2. Discharge head higher than anticipated.
3. Suction lift too high or insufficient NPSH. Check also for
clogged suction line or foot valve.
4. Foot valve too small.
5. Foot valve or suction opening not submerged enough.
INSUFFICIENT PRESSURE
1. Air or gasses in liquid.
2. Impeller diameter too small.
3. Discharge head higher than anticipated.
LEAK AT IMPELLER HOUSING
1. O-ring pinched or chemically attacked. Replace with new o-ring.
2. Phillips pan head screws improperly or overtightened. Install
according to assembly instructions.
3. Check motor adapter for cracks.
4. Total overall pressure too high. Do not exceed 35 psi inlet and
outlet pressure.
LOSS OF PRIME
1. Leaking suction line.
2. Suction lift too high or insufficient NPSH.
3. Air or gasses in liquid.
4. Foreign matter in impeller.
5. Leaking foot valve.
EXCESSIVE POWER CONSUMPTION
1. Head lower than rating. Pumps too much liquid.
2. Specific gravity or viscosity of liquid pumped is too high or
higher than that defined in application.
VIBRATION
1. Excess bearing wear.
2. Drive magnet uncoupled.
3. Loose magnet.
4. Pump cavitating.
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 internals.
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WARRANTY
Finish Thompson, Inc (manufacturer) warrants this pump product to
be free of defects in materials and workmanship for a period of one
year 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 not apply 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.
Warranty Registration
Thank you for your purchase of this quality Finish Thompson product.
Be sure to take a minute to register your pump at
Finishthompson.com/warranty. Simply provide the model number, se-
rial number and a few other pieces of information.
ORDERING OF SPARE PARTS
Spare parts can be ordered from your local distributor. Always refer
to pump model number to avoid error.
OTHER FINISH THOMPSON PRODUCTS
Drum Transfer Pumps are available in sanitary construction, stainless
steel, polypropylene, PVDF and CPVC. Flows to 40 gpm, discharge
heads to 300 feet and viscosities to 100,000 cP.
Portable Mixers for turbine mixing and blending handle viscosities
to 1,000 cP with gentle, non-vortexing circulation. Available in 316
stainless steel construction.
Centrifugal Pumps in polypropylene, PVDF, and 316 SS are offered in
mag drive sealless or mechanical seal models. Pumps are capable of
330 gpm, up to 325 feet discharge head, and 220
For more information, contact Finish Thompson Inc. or see our web
site at www.finishthompson.com.
o
F (104oC) maximum.
Call our toll free Technical Service Hot line, 1-800-888-3743, if you
have any questions regarding product operation or repair.
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Figure 6
1A
15
12
Item Qty Description
1 1
1A 1
Housing Assy - NPT w/ ceramic thrust ring A101014-1 A101014-2
Housing Assy - BSP w/ ceramic thrust ring A101014-4 A101014-5
FKM Discharge O-ring (BSP only) J103128
EPDM Discharge O-ring (BSP only) J103129
Part Number
Polypropylene PVDF/ATEX
4-1/2" Impeller w/ carbon bushing A101928 A101936
4" Impeller w/ carbon bushing A101929 A101937
3-1/2" Impeller w/ carbon bushing A101930 A101938
3" Impeller w/ carbon bushing A101931 A101939
4-1/2" Impeller w/ PTFE bushing A101932 A101940
2 1
4" Impeller w/ PTFE bushing A101933 A101941
3-1/2" Impeller w/ PTFE bushing A101934 A101942
3" Impeller w/ PTFE bushing A101935 A101943
4-1/2" Impeller w/ ceramic bushing A103106 A103110
4" Impeller w/ ceramic bushing A103107 A103111
3-1/2" Impeller w/ ceramic bushing A103108 A103112
3" Impeller w/ ceramic bushing A103109 A103113
Carbon Bushing only J100977
2A 1
PTFE Bushing only (optional) 106386
Ceramic Bushing only (optional) 106386-2
2B 1 PTFE Thrust Ring only J101606
3 1 Barrier w/ Ceramic Shaft & Thrust Ring) A101008-1 A101008-2
Motor Adapter U.S. M101629-1
4 1
Motor Adapter IEC 80 Frame M101629-2
Motor Adapter IEC 90 Frame M101629-3
Item Qty Description
Part Number
PP, PVDF, & ATEX
Drive Magnet Assy 56C Motors A101019-1
5 1
Drive Magnet Assy 145TC Motors A101019-2
Drive Magnet Assy 80 Frame Motors A101019-3
Drive Magnet Assy 90 Frame Motors A101019-4
5A 2 Set Screw J101084
6 1
Housing O-Ring FKM J102774
Housing O-Ring EPDM J102775
7 5 Phillips Pan Head Screws J100998
9 5 Hex Nut J100321
Socket Head Cap Screw U.S. J101000
10 4
Socket Head Cap Screw IEC 80 frame J101080
Socket Head Cap Screw IEC 90 frame J101081
Flat Washers U.S. 145TC J100128
11 4
Lock Washers Metric 80 frame J100672
Lock Washers Metric 90 frame J101083
Shaft Key US 3/16 (ATEX N/A) M101708
12 1
Shaft Key IEC 80 frame 6mm M101647
Shaft Key IEC 90 frame 8mm M101749
13 4 Phillips Head Screws J101020
14 1 Plug for Access Hole J102878
15 4 3/8 SS Flat Washer 145TC only J100128
Note: For Wet End Only (incl. items 1, 2, 3, 6 & 13) SEE PRICE SHEET
P/N J102315, Rev. 21, 4/4/2019
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