MP PUMPS CHEMFLO 7 User manual

READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
OPERATOR’S MANUAL CHEMFLO 7
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE RELEASED: 8-27-21
(REV: A)
CHEMFLO® 7
(2” X 1”)
INGERSOLL RAND COMPANY INC
34800 BENNETT DR, FRASER, MI 48026
www.gardnerdenver.com/en-us/mppumps © 2021
Hydraulic Models
Pedestal Models
145TC, 184TC
and 215
256TC
CC Models
Figure 1
RELEASED 03/Sep/2021 12:38:59 GMT

Page 2 of 16 CHEMFLO 7 (en)
GENERAL DESCRIPTION
CHEMFLO 7:
2” x 1” End Suction Centrifugal Pump
Made with high quality investment cast 316 stainless steel
components, the ChemFlo® series of pumps are designed to
be applied in a wide range of pumping applications where
stainless steel is required.
ChemFlo® 7 pumps utilize a semi-open impeller design to al-
low for passage of larger solid sizes and a totally enclosed im-
peller to meet high eciency standards. Several seal options
are available in addition to the standard type 2100 carbon /
ceramic / Viton mechanical seal.
SPECIFICATIONS
Suction And Discharge ..............2” x 1” ANSI 150# Flange
Application .......................... Agricultural, Commercial, Industrial, Marine, OEM
Materials of construction ............316 stainless steel, CFB (nickel aluminum bronze)
Flow
CC..................................Up to 200 gpm / (757 lpm)
Hydraulic ...........................Up to 240 gpm / (908 lpm)
Pedestal ............................Up to 200 gpm / (757 lpm)
Head Feet
CC .................................Up to 280 ft (85 m)
Hydraulic...........................Up to 330 ft (100 m)
Pedestal............................Up to 280 ft (85 m)
Impeller
CC, Hydraulic and Pedestal .......... 8.00”(203 mm) enclosed, cast 316 stainless steel
Motor ................................Up to 15 HP (11.18 kw)
Hydraulic Motor .....................1.16 cu.in. (19.0 ml)
1.59 cu.in. (26.5 ml)
Hydraulic System Pressure ..........Up to 2100 psi (145 bar)
Hydraulic Fluid Flow .................Up to 28 gpm (106 lpm)
Drive Options ........................ Close coupled 186TC
Close coupled 215TC
Close coupled 256TC
Pedestal
PumPAK® (without motor)
Seal ..................................Standard carbon / Ceramic / Viton
Special seal material combinations available (Consult factory)
Drive Sleeve .........................316 stainless steel
Options ..............................Tap for recirculation or seal ush
Hydraulic motor driven pedestals and Shaft driven pedestals
Hydraulic motors with ow controls and optional case drain
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CHEMFLO 7 (en) Page 3 of 16
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
WARNING
Be sure hoses and other components can
withstand fluid pressures developed by this pump.
Check any hoses for damage or wear. Be certain dis-
pensing device is clean and in proper working condi-
tion.
WARNING
IMPROPER GROUNDING. Can increase
spark and electrical shock risk, resulting in severe in-
jury or death. Ground pump and pumping system.
yThe pumping system must be grounded when it is
pumping, ushing, recirculating, or spraying amma-
ble materials such as paints, solvents, lacquers, etc.
or used in a location where surrounding atmosphere
is conducive to spontaneous combustion. Ground the
dispensing valve or device, containers, hoses, and any
object to which material is being pumped.
ySecure pump, connections, and all contact points to
avoid vibration and generation of contact or static
spark. Consult local building codes and electrical
codes for specific grounding requirements. After
grounding, periodically verify continuity of electrical
path to ground. Test with an ohmmeter from each
component (e.g., hoses, piping, pump, clamps, motor,
base plate, etc..) to ground to ensure continuity. Ohm-
meter should show 0.1 ohms or less.
WARNING
HAZARDOUS PRESSURE. Can result in
serious injury or property damage. Do not service or
clean pump while the system is pressurized.
WARNING
HAZARDOUS MATERIALS. Can cause se-
rious injury or property damage. Do not attempt to
return a pump to the factory or service center that
contains hazardous material. Safe handling practices
must comply with local and national laws and safe-
ty code requirements. Obtain Material Safety Data
Sheets on all materials from the supplier for proper
handling instructions.
CAUTION
Check pump seals, elastomers, and all
wetted parts to assure compatibility before using
commission of the product.
yVerify the chemical compatibility of the pump wetted
parts and the substance being pumped, flushed or
recirculated. Chemical compatibility may change with
temperature and concentration of the chemical(s)
within the substances being pumped, flushed or cir-
culated. For specific fluid compatibility, consult the
chemical manufacturer.
CAUTION
Maximum temperatures are based on
mechanical stress of seals and elastomers only. Cer-
tain chemicals will signicantly reduce maximum safe
operating temperature. Consult the chemical manu-
facturer for chemical compatibility and temperature
limits.
CAUTION
Be certain all operators of this equipment
have been trained for safe working practices, under-
stand it’s limitations, and wear safety goggles / equip-
ment when required.
CAUTION
Do not use the pump for the structural
support of the piping system. Be certain the system
components are properly supported to prevent stress
on the pump parts.
CAUTION
Prevent unnecessary damage to the
pump. Do not allow pump to operate in a dry run con-
dition or under cavitating conditions for extended
periods.
CAUTION
Use only genuine MP Pumps®replace-
ment parts to assure compatible pressure rating and
longest service life.
CAUTION
The mechanical seal in the pump must
not be operated dry.
CAUTION
If a pump will be idle in freezing weath-
er it should be drained or filled with the proper an-
ti-freeze.
NOTICE
Pump should be installed in the position
consistent with the manufactures specications.
NOTICE
Re-torque all fasteners before operation.
Creep of housing and gasket materials may cause
fasteners to loosen. Re-torque all fasteners to insure
against uid leakage.
WARNING
= Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
CAUTION
= Hazards or unsafe practices which could
result in minor personal injury, product
or property damage.
NOTICE
= Important installation, operation or
maintenance information.
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Page 4 of 16 CHEMFLO 7 (en)
STORAGE PRECAUTIONS
Do not store filled with fluid at or below freezing temp of
process uid.
INSTALLATION
INSTALLATION FOR CHEMFLO END SUCTION
PUMPS:
MP CHEMFLO centrifugal pumps should be installed with a
ooded suction as near to the liquid source as possible. A MP
CHEMFLO is not a self-priming pump. If the liquid source is
located below the pump a footvalve and some provision for
priming must be used. The pump housing and suction line
must be completely lled with liquid before operation.
Piping should include shuto valves and pipe unions on both
the discharge and suction to isolate the pump for mainte-
nance.
Provisions for suction and discharge pressure gages are
recommended for troubleshooting. The suction line should
be as short as possible, at least as large as the pump suction
connection, include as few fittings as possible and those
should have a long radius to keep friction losses at a min-
imum. If a footvalve or strainer is included the FREE AREA
should be at least three times the area of the pump suction
connection. The suction piping must be absolutely free of
leaks.
Both suction and discharge piping should be supported in-
dependently of the pump. never draw or pull pipe into place,
this may impose a strain that will result in misalignment be-
tween the pump and driver or otherwise adversely aect the
operation of the pump. After connecting piping to the pump
rotate the shaft several times to check for rubbing or binding.
INSTALLATION FOR CHEMFLO PUMPAKS:
If it is necessary to install the pump above the level of the
liquid, a priming line should be connected directly to the
suction line. A check valve must be used in conjunction with
a priming line or the priming liquid will merely pass through
the suction line to the liquid source. The priming of the suc-
tion line evacuates the air in the suction line and pump. This
series of pumps will not handle air and therefore all air must
be displaced from the suction line and pump before the
pump can operate. Be sure that the pump housing is filled
with liquid before starting the pump. THE MECHANICAL
SEAL IN THE PUMP MUST NOT BE OPERATED DRY.
Pipe or hose of the same size (or larger) as inlet and outlet
openings should be used on the installation. When using
pipe, avoid sharp bends and use long radius elbows wherev-
er possible. This will keep friction loss at a minimum and al-
low the pump to operate more eectively. Use pipe dope on
all connections and be sure all ttings are airtight, especially
on the suction side of the pump. An air leak on the suction
side of the pump will prevent proper operation. A section of
non-collapsible hose between piping and pump may be used
as a vibration dampener.
BEARING INSTALLATION (PEDESTAL MODELS):
Check the shaft to insure that it rotates freely. Shafts should
be aligned in accordance with the instructions of the cou-
pling manufacturer. Final alignment must be performed after
the pump has been completely installed and the pump and
driver are at operating temperature. Proper shaft alignment is
the responsibility of the installer.
The MP CHEMFLO centrifugal pump should be installed with
a ooded suction as near to the liquid source as possible.
CHEMFLO pumps are not self-priming pumps. If the liquid
source is located below the pump a footvalve and some
provision for priming must be used. The pump housing and
suction line must be fully primed before operation. The me-
chanical seal in the pump must not be operated dry.
Piping should include shuto valves on both the discharge
and suction to isolate the pump for maintenance. Provisions
for suction and discharge pressure gages are recommended
for trouble shooting. The suction line should be as short as
possible, at least as large as the pump suction connection,
include as few ttings as possible and those should be long
radius to keep friction losses at a minimum. If a footvalve
or strainer is included the free area should be at least three
times the area of the pump suction connection. The suction
piping must be absolutely free of leaks.
Both suction and discharge piping should be supported in-
dependently of the pump. Never use excessive force to move
the pipe into place. This may impose a strain that will result
in misalignment between the pump and driver or otherwise
adversely aect the operation of the pump. After connecting
pipe to the pump rotate the shaft several times to check for
rubbing or binding.
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CHEMFLO 7 (en) Page 5 of 16
MOTOR MOUNTING
Check rotation of the driver to be sure it coincides with the
required rotation of the pump. When viewed from the driver
end the rotation of the pump is CLOCKWISE.
A Pumpak shaft sleeve is machined to precisely t the shaft
of your driver. No provision is made for drive key and none is
required.
Loosen the drive clamp fasteners but do not remove. NOTE:
If the driver shaft is keyed, remove the key before attempting
to install the Pumpak. Slide the Pumpak assembly onto the
driver shaft, aligning the capscrew holes in the adaptor with
the tapped holes in the driver mounting face until the adap-
tor contacts the mounting face.
Install fasteners and tighten to secure Pumpak assembly to
the driver. First center then tighten the drive clamp assembly
to lock the shaft sleeve onto the driver shaft.
After all fasteners are tight including the drive clamp assem-
bly, remove the Assembly shim from the suction connection.
The shim was in place to establish clearance between the
face of the impeller and pump housing. Rotate the driver
slowly by hand to make certain that there is no rubbing.
TO ADJUST IMPELLER CLEARANCE:
1. Loosen the impeller drive sleeve
2. Use a tool such as a screwdriver to push the impeller
back then reinsert the Assembly Shim.
3. Seal spring tension should push the impeller forward
and capture the shim when the screwdriver is removed.
4. Re-tighten the shaft clamp. Remove the shim then re-
check for rubbing.
SHIM
(24 GA
GE)
CHEMFLO
HOUSING
IMPELLER
Figure 2
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Page 6 of 16 CHEMFLO 7 (en)
Hs
MINIMIZE LENGTH &
AVOID SHARP BENDS NEAR INLET
Hd
SUCTION
PIPE
DISCHARGE
PIPE
UNION FLANGE
SUCTION
VALVE
OVER HEAD WATER TANK
EYE OF IMPELLER
CASING
UNION
FLANGE
Hs = SUCTION HEAD (NPSHr)
DISCHARGE
VALVE
Hd = DISHCARGE HEAD
WORKING OF CENTRIFUGAL PUMP
Figure 3
OPERATING INSTRUCTIONS
Inspect the Pumpak as soon as it is received to make certain
that no parts are missing or have been broken in shipment.
Damage should be reported immediately to the shipping
company. CAUTION: Do not disturb the assembly shim
in the suction opening of the pump housing until after the
Pumpak has been completely assembled to the driver.
The Pumpak utilizes a single self-adjusting type mechanical
seal that is lubricated and cooled by the liquid in the pump.
THE PUMP MUST NEVER BE OPERATED WITHOUT LIQUID
IN THE HOUSING.
WORKING OF CENTRIFUGAL PUMP:
A centrifugal pump operates through the transfer of rotation-
al energy from one or more driven rotors, called impellers.
The action of the impeller increases the fluid’s velocity and
pressure and directs it towards the pump outlet.
WEAR AND INSPECTION POINTS
Shaft: Inspect threads, keyways and shoulders. Replace if
damaged.
Ball bearings (Pedestal and hydraulic models): Replace if
worn, loose, or rough and noisy when rotated. If dirty, clean
with solvent, dry and coat with a good lubricant. New bear-
ings should not be unwrapped until ready for use.
Impellers: Replace if excessively worn or corroded. The im-
peller should have been statically and dynamically balanced
at the factory, and static and dynamic balance must be main-
tained for proper operation of your equipment.
Mechanical seals: Should be inspected for, lack of lubrica-
tion, misalignment, overheating, abrasive materials damage,
and corrosion.
Alignment: Proper alignment between pump shaft and
motor shaft is key to the performance of shaft seals and
bearings. Improper alignment can lead to premature pump
failure.
Pedestal Style: Inline shaft to shaft spacing is dependent
upon the coupling being used. Check the alignment carefully
between the pump and the drive.
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CHEMFLO 7 (en) Page 7 of 16
SEAL REPLACEMENT INSTRUCTIONS
DISASSEMBLE THE PUMP:
Drain the system of liquid, break suction and discharge pipe
unions, and, if necessary, remove all piping from the suction
and discharge openings. Remove the fasteners holding the
pump adaptor to the driver, loosen the drive clamp assembly,
and remove the PUMPAK.
To disassemble, remove the washers and hexnuts holding the
motor adaptor to the housing. Remove the housing. The im-
peller, drive sleeve, seal bellows, and the spring assembly will
now slide forward Free of the pump adapter.
The seal seat and seat cup will remain in the pump adaptor.
If not damaged or worn, do not remove. If necessary, remove
from the adaptor counter bore with a piece of wood or a
screwdriver handle inserted through the adaptor from the
drive end. A sharp tap or two is usually sucient to knock out
the seal seat. Use caution in removing the seal seat so as not
to crack a ceramic seat.
REMOVE IMPELLER
Remove seal bellows and spring assembly. On some models,
spring keeper can also be removed now before removing im-
peller.
NOTE: The seal bellows will be bonded to the shaft sleeve
and will require some patience and caution in removal in or-
der not to damage the seal bellow and cage.
MP Pumps rebuild kits include a new drive sleeve to avoid the
possibility of damaging the drive sleeve. See back of manual
for list of seal kits and corresponding rebuild kits. Impellers
are also available if wear or damage is present.
Remove locknut from shaft; unscrew the impeller from the
shaft sleeve counter-clockwise from the impeller end.
INSPECTION:
Check all parts for wear. For ease of reassembly shaft sleeve
should have all nicks and burrs removed. Clean with light cro-
cus cloth. Replace damaged parts with new parts.
Inspect the seal seat and washer, seat cup, and seal bellows
for grooves, cuts, scumarks, or other deterioration. If any of
the parts are damaged, a complete new assembly should be
installed.
REASSEMBLY:
All dirt and foreign matter should be removed. Recommend
only using new seals and elastomers when reassembling a
pump.
Lubricate seal seat cup with liquid soap (P-80 emulsifier) or
clean grease and press seal seat into adaptor counter bore,
seating it firmly and squarely. Use caution so as not to mar
the lapped face of the seal seat.
Assemble shaft sleeve; seal spring keeper, impeller and im-
peller nut. Before installing seal bellows and spring assembly,
lubricate the shaft sleeve and rubber bellows with liquid soap
(P-80 emulsier) or clean grease and press bellows and spring
assembly onto the shaft sleeve. The spring should engage
the spring keeper at the impeller end of the shaft sleeve.
To be properly positioned the washer must be rmly against
the rubber bellows member and the driving lugs of the wash-
er properly engaged. The raised shoulder on the seal wash-
er should be facing away from the impeller to contact the
lapped surface of the seal seat in the adaptor.
Slide impeller and seal assembly into the adaptor. Install drive
clamp assembly on the shaft sleeve but do not tighten.
INSTRUCTIONS FOR SET SCREW TYPE SEAL:
Do not remove the seal retaining clips. Slide the seal into
place on the shaft. The end of the shaft will be recessed ap-
proximately .080” ±.020” from the end of the seal. The proper
seal working height is achieved when the seal faces are set
ush with the seal clips in place.
With the seal clips still in place tighten the seal fasteners with
a ball end allen wrench. It is important that the allen wrench
not rest upon the seal housing during tightening as this may
aect the position of the seal on the shaft. After the seal fas-
teners have been tightened the seal clips should be removed
and saved.
Do not use the seal shim with setscrew type seal.
For bellows seal install the seal spacer on the backside of the
impeller. Use a light grease or similar tacky material. Thread
impeller onto shaft. Install jam nut. Place o-ring onto seal
plate. Install impeller/bearing housing assembly into pump
housing. Install lock washers and hex nuts. Rotate the shaft
several times to check for rubbing or binding.
BEARING REPLACEMENT INSTRUCTIONS
(PEDESTAL MODELS)
The pump utilizes a single self-adjusting type mechanical seal
that is lubricated and cooled by the liquid in the pump.
THE PUMP MUST NEVER BE OPERATED WITHOUT LIQUID
IN THE HOUSING.
Check rotation of the driver to be sure it coincides with the
required rotation of the pump. When viewed from the driver
end the rotation of the pump is CLOCKWISE.
The pump’s grease lubricated bearings are sealed. They have
been pre-lubricated at the factory and require no further
lubrication or maintenance for the life of the bearing. Electric
motors or other rotating equipment used to drive the pump
should be lubricated in accordance with the manufacturer’s
instructions.
DISASSEMBLY:
Drain the housing by removing the drain plug. Remove the
hex nuts and lock washers from the housing studs. Slide the
bearing housing/impeller assembly out of the housing, it
may be necessary to rotate the driver shaft out of the way.
With the bearing /impeller assembly on a bench secure shaft,
unthread impeller nut then unthread impeller. Remove the
seal from the shaft. Lift o the seal plate. Place the seal plate
face down on the bench and press the seal seat out. Remove
the snap ring from the backside of the bearing housing. With
a soft mallet, loosen the shaft assembly by tapping the impel-
ler end then slide the bearing assembly from the housing.
Press the bearings from the shaft.
ASSEMBLY:
Press bearings onto the shaft. Slide the shaft / bearing assem-
bly into the bearing housing and install the snap ring. Place
seal housing face up on bench. Lubricate non-PTFE seal seat
with water-soluble lubricant and gently press into seal hous-
ing. If pinned seat is used be certain that pin is in place, lined
up with groove in seal seat. Place seal housing onto pilot of
bearing housing. Lubricate shaft with water-soluble lubricant.
Slide seal onto shaft.
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Page 8 of 16 CHEMFLO 7 (en)
PARTS LIST / CHEMFLO 7 CC (145TC, 184TC AND 215TC)
For 256TC Motors
For 184TC, 215TC
and 256TC Motors
1
2
6
34
7
58
13
12
1
9
10
11
14
9
1011
14
12
16
15
Figure 4
PARTS LIST / CHEMFLO 7 CC (145TC, 184TC AND 215TC)
Item Description (size) Qty Part No. Mtl
1 Pipe Plug (1/8” NPT) 2 21255 316 SS
2 Volute 1 31424 CF8M SS
3 Hex Jam Nut (5/8-18) 1 29194 316 SS
4
Impeller (Ø 6.5) 1 31955 CF8M SS
Impeller (Ø 6.75) 1 31954 CF8M SS
Impeller (Ø 6.90) 1 50079 CF8M SS
Impeller (Ø 6.95) 1 50608 CF8M SS
Impeller (Ø 7.00) 1 35589 CF8M SS
Impeller (Ø 7.15) 1 50327 CF8M SS
Impeller (Ø 7.25) 1 35493 CF8M SS
Impeller (Ø 7.30) 1 50644 CF8M SS
Impeller (Ø 7.5) 1 31953 CF8M SS
Impeller (Ø 7.625) 1 37990 CF8M SS
Impeller (Ø 7.95) 1 31429 CF8M SS
5 See Seal Table for Options (Page No 11)
6
O-Ring (AS-568-265) 1 31430 VITON
O-Ring (AS-568-265) 1 39262 EPDM
O-Ring (AS-568-266) 1 31431 TEFLON EN-
CAPS SIL
O-Ring (AS-568-265) 1 39411 BUNA
7
Drive Sleeve (215TC 1.375") 1 31311 316 SS
Drive Sleeve (145TC 0.875") 1 31806 316 SS
Drive Sleeve (184TC 1.125" ) 1 31094 316 SS
Drive Sleeve (256TC 1.63") 1 31833 316 SS
Item Description (size) Qty Part No. Mtl
8
Seal Housing (1.75" W / Flush) 1 38130 CF8M SS
Seal Housing (1.50") 1 31426 CF8M SS
Seal Housing (1.50" W / Flush) 1 31427 CF8M SS
Seal Housing (1.75") 1 34095 CF8M SS
9 Stud (3/8-16 x 1.32) 10 21260 304 SS
10 Flat Washer 10 28053 304 SS
Flat Washer (1.06 x 0.50 x 0.09) 4 34350 304 SS
11 Capscrew (1/2-13 x 1.00) 4 33480 304 SS
Hexnut (3/8-16) 10 21268 304 SS
12
Clamp Assembly (1.5") 1 31312 STEEL
Clamp Assembly (1.38") 1 31099 STEEL
Clamp Assembly (1") 1 23039 303 SS
Clamp Assembly (1.75") 1 33036 STEEL
13 Capscrew (1/2-13 x 3/4) 4 31235 304 SS
Capscrew (3/8-16 x 3/4) 4 25663 304 SS
14 Motor Adaptor (256TC) 1 33444 CAST IRON
15 Shim* 1 31372 316 SS
16 Expansion Pin* 1 32013 420SS
* 31372 Spring Retainer, Use Only with Seals 26461, 31347, 38573,
and 35801
* 32013 Expansion Pin, Use Only with Chemlon Seals
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CHEMFLO 7 (en) Page 9 of 16
PARTS LIST / CHEMFLO 6 HYDRAULIC (1.16 AND 1.59)
3
4
10
9
56
7
8
9
10
11
12
15
14 22 16
17 18
19
20
21
23
1
2
13
14
2
24
Figure 5
PARTS LIST / CHEMFLO 6 HYDRAULIC (1.16 AND 1.59)
Item Description (size) Qty Part No. Mtl
1 Adapter Plate 1 33366 STEEL
2 Capscrew (3/8 - 16 x 1.0 LG) 10 31520 STEEL
3 Clamp 1 31312 STEEL
4 Slinger 1 26680 NEOPRENE
RUBBER
5 Shaft 1 33367 316 SS
6 Body 1 26994 CAST IRON
7 Lockwasher (3/8) 8 21266 304 SS
8 Capscrew (3/8-16x1.75 ) 8 41259 STEEL
9 Ball Bearing 2 26997 STEEL
10 Snap Ring 2 26998 STEEL
11 Hydraulic Motor (1.16 DISP) 1 29992 CAST IRON
Hydraulic Motor (1.59 DISP) 1 29993 CAST IRON
12 Lockwasher (1/2) 2 21254 304 SS
13 Capscrew (1/2 - 13 x 1.25) 2 21246 304 SS
14 Pipe Plug (1/8" NPT) 2 21255 316 SS
15 Volute 1 31424 CF8M SS
16 Hex Jam Nut (5/8 - 18) 1 29194 316 SS
Item Description (size) Qty Part No. Mtl
17
Impeller (Ø 6.5) 1 31955 CF8M SS
Impeller (Ø 6.75) 1 31954 CF8M SS
Impeller (Ø 6.90) 1 50079 CF8M SS
Impeller (Ø 6.95) 1 50608 CF8M SS
Impeller (Ø 7.00) 1 35589 CF8M SS
Impeller (Ø 7.15) 1 50327 CF8M SS
Impeller (Ø 7.25) 1 35493 CF8M SS
Impeller (Ø 7.30) 1 50644 CF8M SS
Impeller (Ø 7.5) 1 31953 CF8M SS
Impeller (Ø 7.625) 1 37990 CF8M SS
Impeller (Ø 7.95) 1 31429 CF8M SS
18 Shim 1 31372 316 SS
19 Spring Retainer* 1 34196 316 SS
20 Drive Sleeve 1 31311 316 SS
21 See Seal Table for Options (Page No 11)
22
O-Ring (AS-568-265) 1 31430 VITON
O-Ring (AS-568-265) 1 39262 EPDM
O-Ring (AS-568-265) 1 31431 TEFLON
ENCAPS SIL
O-Ring (AS-568-265) 1 39411 BUNA
23 Housing Seal 1 31426 CF8M SS
24 Expansion Pin* 1 32013 420 SS
* 34196 Spring Retainer, Use Only with Seals 26461, 31347, 38573,
and 35801
* 32013 Expansion Pin, Use Only with Chemlon Seals
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Page 10 of 16 CHEMFLO 7 (en)
PARTS LIST / CHEMFLO 7 PEDESTAL
21
6
3
4
5
7
1
13
14
15
9
12
11
10
16
13
1415 8
10
17
18
Figure 6
PARTS LIST / CHEMFLO 7 PEDESTAL
Item Description (size) Qty Part No. Mtl
1 Pipe Plug (1/8” NPT) 2 21255 316 SS
2 Volute 1 31424 CF8M SS
3 Hex Jam Nut (5/8-18) 1 29194 316 SS
4
Impeller (Ø 6.5) 1 31955 CF8M SS
Impeller (Ø 6.75) 1 31954 CF8M SS
Impeller (Ø 6.90) 1 50079 CF8M SS
Impeller (Ø 6.95) 1 50608 CF8M SS
Impeller (Ø 7.00) 1 35589 CF8M SS
Impeller (Ø 7.15) 1 50327 CF8M SS
Impeller (Ø 7.25) 1 35493 CF8M SS
Impeller (Ø 7.30) 1 50644 CF8M SS
Impeller (Ø 7.5 CSI) 1 31953 CF8M SS
Impeller (Ø 7.625) 1 37990 CF8M SS
Impeller (Ø 7.95) 1 31429 CF8M SS
5 See Seal Table for Options (Page No 11)
6
O-Ring (AS-568-265) 1 31430 VITON
O-Ring (AS-568-265) 1 39262 EPDM
O-Ring (AS-568-266) 1 31431 TEFLON EN-
CAPS SIL
O-Ring (AS-568-265) 1 39411 BUNA
Item Description (size) Qty Part No. Mtl
7 Seal Housing 1 31426 CF8M SS
8 Slinger 1 37881 NEO RUBBER
9 Drive Shaft 1 31802 316 SS
10 Ball Bearing 2 31804 STEEL
11 Snap Ring 1 31803 CARBON
SPRING STEEL
12 Square Key 1 33232 STEEL
13 Stud (3/8-16 x 1.32) 10 21260 304 SS
14 Flat Washer 10 28053 304 SS
15 Hexnut (3/8-16) 10 21268 304 SS
16 Bearing Housing 1 31656 CAST IRON
17 Shim* 1 31372 316 SS
18 Expansion Pin* 1 32013 420SS
* 31372 Spring Retainer, Use Only with Seals 26461, 31347, 38573,
and 35801
* 32013 Expansion Pin, Use Only with Chemlon Seals
RELEASED 03/Sep/2021 12:38:59 GMT

CHEMFLO 7 (en) Page 11 of 16
SERVICE KITS
PUMP MODEL PUMP DESCRIPTION SEAL KIT BEARING KIT IMPELLER
MP39959 CF7PMP SS:10-3 215TC 50HZ 7.95 SSC MP51279 #N/A MP31429
MP33465 CF7PMP SS:10-3 215TC 6.5 T-2100 MP51277 #N/A MP31955
MP36818 CF7PMP SS:15-3 215T 7.95 BCF 31989 #N/A MP51282 MP31429
MP50814 CF7PMP SS:15-3 215TC 575V 6.90 SSC MP51279 #N/A MP50079
MP50959 CF7PMP SS:15-3 215TC 575V 7.15 SSC MP51279 #N/A MP50327
MP51231 CF7PMP SS:15-3 215TC 6.5 SSC MP51279 #N/A MP31955
MP50061 CF7PMP SS:15-3 215TC 6.90 SSC MP51279 #N/A MP50079
MP50062 CF7PMP SS:15-3 215TC 6.95 SSC MP51279 #N/A MP50608
MP50063 CF7PMP SS:15-3 215TC 7.15 SSC MP51279 #N/A MP50327
MP39720 CF7PMP SS:15-3 215TC 7.25 SSC MP51279 #N/A MP35493
MP35494 CF7PMP SS:15-3 215TC 7.25 T-2100 MP51277 #N/A MP35493
MP50064 CF7PMP SS:15-3 215TC 7.30 SSC BALDOR MP51279 #N/A MP50644
MP51203 CF7PMP SS:15-3 215TC 7.30 SSC BALDOR XP MP51279 #N/A MP50644
MP38133 CF7PMP SS:15-3 215TC 7.5 T-2 SSC SF MP51279 #N/A MP31953
MP33470 CF7PMP SS:15-3 215TC 7.5 T-2100 MP51277 #N/A MP31953
MP38134 CF7PMP SS:15-3 215TC 7.625 SSC BALDOR SF MP51279 #N/A MP37990
MP37991 CF7PMP SS:15-3 215TC 7.625 T-2100 MP51277 #N/A MP37990
MP34091 CF7PMP SS:15-3 215TC 7.95 T-2100 MP51277 #N/A MP31429
MP34674 CF7PMP SS:HYD PED 7.95 SSC W/O MTR MP51279 MP51283 MP31429
MP36457 CF7PMP SS:PED 6.75 T-9 #N/A MP51282 MP31954
MP50941 CF7PMP SS:PED 7.5 SSC #N/A MP51282 MP31953
MP37067 CF7PMP SS:PED 7.5 T-2 CSC #N/A MP51282 MP31953
MP33573 CF7PMP SS:PED 7.5 T-2100 #N/A MP51282 MP31953
MP31989 CF7PMP SS:PED 7.95 T-2100 #N/A MP51282 MP31429
MP33210 CF7PPK SS:184TC 7.95 T-2100 MP51278 #N/A MP31429
MP31962 CF7PPK SS:215TC 6.5 T-2100 MP51277 #N/A MP31955
MP31959 CF7PPK SS:215TC 6.75 T-2100 MP51277 #N/A MP31954
MP51213 CF7PPK SS:215TC 6.90 SSC MP51279 #N/A MP50079
MP35590 CF7PPK SS:215TC 7.0 T-2100 MP51277 #N/A MP35589
MP51242 CF7PPK SS:215TC 7.25 SSC MP51279 #N/A MP35493
MP38156 CF7PPK SS:215TC 7.5 T-2 SSC SF MP51279 #N/A MP31953
MP31956 CF7PPK SS:215TC 7.5 T-2100 MP51277 #N/A MP31953
MP38157 CF7PPK SS:215TC 7.625 T-2 SSC SF MP51279 #N/A MP37990
MP35970 CF7PPK SS:215TC 7.95 SSC MP51279 #N/A MP31429
MP31639 CF7PPK SS:215TC 7.95 T-2100 MP51277 #N/A MP31429
SEAL TYPE OPTIONS
Seal PN Seal Type Shaft Dia. Mating Ring Material
Primary Ring Elastomer Components
26461 52 1.5” (38.1 mm) Silicon Carbide Silicon Carbide Viton 316 SS
26565 9 1.5”(38.1 mm) Ceramic Carbon Chemlon 316 SS
31347 2 1.5”(38.1 mm) Tungsten Carbide Silicon Carbide Viton 316 SS
31374 2100 1.5” (38.1 mm) Ceramic Carbon Viton 316 SS
33327 2 1.5”(38.1 mm) Tungsten Carbide Silicon Carbide Viton 316 SS
34933 2 1.5”(38.1 mm) Silicon Carbide Carbon Viton 316 SS
35801 2 1.5”(38.1 mm) Silicon Carbide Carbon EPDM 316 SS
38573 2 1.5”(38.1 mm) Silicon Carbide Carbon Buna 316 SS
39056 2 1.75”(44.45 mm) Silicon Carbide Carbon EPDM 316 SS
RELEASED 03/Sep/2021 12:38:59 GMT

Page 12 of 16 CHEMFLO 7 (en)
DIMENSIONAL DATA
CF7 PUMPAK FOR 145TC
Figure 7
CF7 PUMPAK FOR 184TC
Figure 8
CF7 PUMPAK FOR 215TC
Figure 9
RELEASED 03/Sep/2021 12:38:59 GMT

CHEMFLO 7 (en) Page 13 of 16
DIMENSIONAL DATA
CF7 PUMPAK FOR 256TC
Figure 10
CF7 W/1.16 DISP . HYDRAULIC MOTOR
Figure 11
RELEASED 03/Sep/2021 12:38:59 GMT

Page 14 of 16 CHEMFLO 7 (en)
DIMENSIONAL DATA
CF7 W/1.59 DISP . HYDRAULIC MOTOR
Figure 12
CF7 PED
Figure 13
RELEASED 03/Sep/2021 12:38:59 GMT

CHEMFLO 7 (en) Page 15 of 16
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE REMEDY
No liquid delivered.
1. Pump not primed.
1. Reprime pump, check that pump and
there are no obstructions in the suc-
tion line.
2. Discharge valve closed 2. Check discharge valve.
3. Suction line clogged. 3. Remove obstructions.
4. Wrong direction of rotation.
4. Change rotation to concur with direc-
tion indicated on bearing housing or
pump casing.
5. Total head is too high 5. Re-evaluate head conditions.
6. Driver is not operating at rated speed. 6. Check electric motor voltage;check
engine rpm
7. Pump is vapor bound
7. Provide additional pressure on liq-
uid being pumped by elevating liquid
source.
8. Foot valve or suction pipe opening
not submerged enough
8. Consult factory for proper depth. Use
baer to eliminate vortices.
Pump not producing rated ow or head.
1. Air leak through gasket. 1. Replace gasket.
2. Air leak through stung box. 2. Replace or adjust packing/mechanical
seal.
3. Impeller partly clogged. 3. Back ush pump to clean impeller.
4. Worn suction side plate or wear rings. 4. Replace defective parts as required.
5. Pump is not properly primed.
5. Reprime pump, check that pump and
there are no obstructions in the suc-
tion line. Check NPSHa to ensure that
there is enough liquid for pump oper-
ation.
6. Driver is not operating at rated speed. 6. Check electric motor voltage;check
engine rpm
7. Pump is vapor bound
7. Provide additional pressure on liquid
being pumped by elevating liquid
source. or consider installing an air
release valve in the discharge line
to remove the air to allow the pump
to become dynamic.
8. Insucient suction head. 8. Ensure that suction line shuto valve
is fully open and line is unobstructed.
9. Worn or broken impeller. 9. Inspect and replace if necessary.
Pump starts then stops pumping.
1. Excessive air in liquid.
1. Clean and tighten all suction connec-
tions; relocate suction inlet in liquid
source.
2. Defective packing or seal. 2. Replace packing or seal.
3. Pump is vapor bound.
3. Provide additional pressure on liquid
being pumped by elevating liquid
source. or consider installing an air
release valve in the discharge line
to remove the air to allow the pump
to become dynamic.
4. Air or vapor pockets in suction line. 4. Rearrange piping to eliminate air
pockets.
5. Air leak in suction line. 5. Repair leak.
Bearings run hot.
1. Improper alignment. 1. Re-align pump and drive.
2. Improper lubrication. 2. Check lubricate for suitability and
level.
3. Lube cooling. 3. Check cooling system
RELEASED 03/Sep/2021 12:38:59 GMT

Page 16 of 16 CHEMFLO 7 (en)
PN MPCF7-IOM
PROBLEM PROBABLE CAUSE REMEDY
Pump is noisy or vibrates.
1. Improper pump/driver alignment. 1. Align shafts.
2. Partly clogged impeller causing
imbalance. 2. Back-ush pump to clean impeller.
3. Broken or bent impeller or shaft. 3. Replace as required.
4. Foundation not rigid. 4. Tighten bolts of pump and motor or
adjust stilts
5. Worn bearings. 5. Replace.
6. Suction or discharge piping not
anchored or properly supported.
6. Anchor per Hydraulic Institute Stan-
dards Manual recommendation.
7. Pump is cavitating.
7. Check NPSHa, Air leaks to ensure that
there is enough liquid for pump opera-
tion.
Excessive leakage from stung box/seal
chamber.
1. Worn mechanical seals. 1. Replace worn parts.
2. Overheating mechanical seal. 2. Check lubrication and cooling lines.
3. Shaft sleeve scored. 3. Remachine or replace as required
Motor requires excessive power.
1. Head lower than rating; pumps too
much liquid.
1. Consult factory. Install throttle valve,
trim impeller diameter.
2. Speed is too high. 2. Electric motor wiring is wrong.
Replace motor.
3. Wrong direction of rotation. 3. Check wiring diagram.
4. Impeller is clogged. 4. Back ush pump to clean impeller.
5. Impeller is binding. 5. Relieve strain on casing; adjust impel-
ler clearance.
6. Driver and pump are misaligned. 6. Realign driver with pump.
7. Power frame shaft is bent. 7. Repalace shaft.
8. Worn suction side plate or wear rings. 8. Replace defective parts as required.
9. Liquid heavier than expected. 9. Check specic gravity and viscosity.
10. Stung box too tight. 10. Readjust packing. Replace if worn.
11. Rotating parts bind. 11. Check internal wearing parts for
proper clearances
Pump fails to prime or loses its prime.
1. Air leaks in suction line.
1. Clean and tighten all suction connec-
tions; relocate suction inlet in liquid
source.
2. Suction strainer is clogged. Suction
lift is too high.
2. Clean debris from strainer. Re-eval-
uate pump requirements and correct
suction conditions.
3. Defective priming valve. 3. Replace valve.
4. Defective seal. 4. Replace seal.
Insucient pressure.
1. Excessive air in liquid.
1. Clean and tighten all suction connec-
tions; relocate suction inlet in liquid
source.
2. Driver is not operating at rated speed. 2. Check electric motor voltage; check
engine rpm
3. Wrong direction of rotation.
3. Change rotation to concur with direc-
tion indicated on bearing housing or
pump casing.
4. Total head is too high. 4. Re-evaluate head conditions.
5. Worn suction side plate or wear rings. 5. Replace defective parts as required.
6. Broken or bent impeller or shaft. 6. Replace as required.
7. Air leak through gasket. 7. Replace gasket.
8. Liquid is vaporizing
8. Provide additional pressure on liq-
uid being pumped by elevating liquid
source. Check temperature of liquid
being pumped’
RELEASED 03/Sep/2021 12:38:59 GMT