Fristam Pumps FS Series Instructions for use

FS Series Pump
1
INSTRUCTION AND MAINTENANCE MANUAL:
FS Shear Blender (FPX-style seal, before 8/2005)
(for pumps with motors frame sizes 140TC thru 320TC)
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https://fristam.nt-rt.ru/ || [email protected]

Fristam Pumps
2
R4: 3/05
!
CAUTION: Begin all pump maintenance operations by disconnecting the
energy source to the pump. Observe all lock out/tag out proce-
dures as outlined by ANSI Z244.1-1982 and OSHA 1910.147
to prevent accidental start-up and injury.
DESCRIPTION
This manual contains installation, operation, assembly, disassembly and repair instructions for the
Fristam FS style pump.
The FS style pump is flange mounted on a heavy duty cast flange support. This flange support provides
an extremely sturdy method of coupling the pump head and the motor. It absorbs vibrations and noise.
The flange support also fastens the pump to the floor (or adjustable base).
The motors used on FS style pumps are standard NEMA totally enclosed fan cooled (TEFC) motors.
They are C-face and have a locked front bearing. These motors do not require feet. Replacement motors
are readily available from local motor distributors.
Motor size determines the type of shaft collar used.

FS Series Pump
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R4: 3/05
TABLE OF CONTENTS
TECHNICAL INFORMATION................................................................................................................... 4
RECOMMENDED PREVENTIVE MAINTENANCE .......................................................................................... 5
SEAL REPLACEMENT ........................................................................................................................ 6-13
PUMP HEAD DISASSEMBLY.............................................................................................. 6-7
ADDITIONAL DISASSEMBLY FOR DOUBLE MECHANICAL SEALS ONLY ....................................... 7
PUMP HEAD ASSEMBLY .................................................................................................. 7-9
SHEAR SINGLE SEAL ASSEMBLY DRAWING ............................................................................................ 10
SHEARSINGLE SILICON CARBIDE STATIONARY SEAL ASSEMBLY................................................................. 11
SHEARDOUBLE SEAL ASSEMBLY DRAWING ............................................................................................ 12
SHEARDOUBLE SILICON CARBIDE STATIONARY SEAL ASSEMBLY................................................................ 13
PUMP SHAFT AND/OR MOTOR REPLACEMENT......................................................................................... 14-15
PUMP DISASSEMBLY ....................................................................................................... 14
PUMP ASSEMBLY ........................................................................................................... 15
SETTING THE ROTOR GAP .............................................................................................. 15
FS SERIES EXPLODED VIEW .............................................................................................................. 16-17
INSTALLATION ................................................................................................................................. 18-19
ELECTRICAL INSTALLATION ................................................................................................................. 19
PUMP OPERATIONS ........................................................................................................................... 19
INSTALLATION OF WATER FLUSH FOR DOUBLE MECHANICAL SEAL ............................................................ 20
TROUBLESHOOTING ........................................................................................................................... 21-23
NOTICE OF TERMS, WARRANTY PROVISIONS INCLUDING DISCLAIMERS,
CLAIMS AND LIMITATION OF LIABILITY.................................................................................................. 27

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TECHNICAL INFORMATION
SPECIFICATIONS
Maximum Inlet Pressure....................................................................................................................150 PSI
Temperature Range .................................................................................................................. -40°F - 400°F
MATERIALS OF CONSTRUCTION
Primary Product Contact Components ......................................................................................... AISI 316L
Cover Gasket........................................................................................................................ BUNA (standard)
Also available in ...................................................Viton, EPDM, Silicone, Chemraz, Kalrez
Surface Finish for Product Contact Surfaces......................................................................32 Ra (standard)
Also available in ........................................................25 Ra, 20 Ra, 15 Ra and electropolish
SHAFT SEALS
Mechanical Seal Type ............................................................................................Single or Double Internal
Seal Flush Water Pressure (double seal only) .............................................................................. 5 Max. PSI
Seal Water Consumption (double seal only) ..................................................................................... 1-2 gph
Stationary Seal Ring Material ...........................................................................................Carbon (standard)
Also available in ........................................................................................... Silicon Carbide
Rotating Seal Ring Material ............................................................... Chrome Oxide coated Stainless Steel
Also available in ........................................................................................... Silicon Carbide
O-ring Material ..................................................................................................................... Viton (standard)
Also available in .......................................................................... contact Customer Service
RECOMMENDED TORQUE VALUES
Rotor nut 40 ft. lb.
Housing clamping bolt 55 ft. lb.
Motor bolts 20 ft.-lb. (for 50C - 140TC motor frames)
Motor bolts 55 ft.-lb. (up to 320TSC motor frames)
Seal retaining ring bolts 4.5 ft. lb.
Shaft collar screw 6 ft.-lb. (for 140TC - 180TC motor frames)
Shaft collar screw 15 ft.-lb. (for 210TC - 280TC motor frames)
Shaft collar screw 40 ft.-lb. (for 280TC - 360TC motor frames)
Acorn nuts on front cover 65 in.-lb.
MOTOR INFORMATION
Uses standard NEMA TEFC C-face motors. Options include washdown, high efficiency, explosion proof,
chemical duty and IEC. The TIR of the motor shaft should be 0.002” or less.
VOLTAGE AND FREQUENCY
3 phase, 60 Hz, 208-230/460 VAC .........................................................................................1750/3500 RPM
3 phase, 60 Hz, 575 VAC........................................................................................................1750/3500 RPM
3 phase, 50 Hz, 208-220/380-415 VAC ..................................................................................1450/2900 RPM
ROTOR TO STATOR GAPS
352, 353, 354, 355.................................................................................................................0.5 mm (0.020”)

FS Series Pump
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R4: 3/05
Table 1: Motor Lubrication Intervals for Standard Conditions
For severe service conditions, multiply interval hours by .5
For extreme service conditions, multiply interval hours by .1
Recommended PReventive maintenance
Recommended Seal maintenance
Visually inspect mechanical seal daily for leakage.
Replace mechanical seal annually under normal duty.
Replace mechanical seal as often as required under heavy duty.
elaStomeR inSPection
Inspect all elastomers when performing pump maintenance. We recommend replacing elastomers (o-
rings and gaskets) during seal, pump shaft and/or motor replacement. If the impeller nut gasket fails,
the threaded hole on the impeller nut and the threads on the end of the shaft will need to be cleaned. A
wire brush is recommended for cleaning these threads.
PumP Shaft inSPection
Inspect annually.
motoR lubRication RecommendationS
Use a high grade ball and roller bearing grease. Recommendations for standard service conditions
include Shell Dolium R or Chevron SRI. (See Tables 1-3 for more details.)
Table 2: Service Condition Denitions
Se rvice
Conditions
M aximum Abie nt
Te mpe rature
Atmospheric Contamination
Standard
104°F (40°C)
C lea n, little c orro sion
Severe
122°F (50°C)
Moderate dirt, corrosion
Extreme
>122°F (>50°C)
Severe, dirt abrasive dust, corrosion
NEMA/(IEC) Rate Speed - RPM
Frame Size 3500 1750
Up to 210 incl. (132 IEC) 5,500 hrs. 12,000 hrs.
Up to 320TSC incl. (180 IEC) 3,600 hrs. 9,500 hrs.
Table 3: Volume of Grease to be Added per Bearing
NEMA/(IEC) Grease Volume
Frame Size IN.3TSP
Up to 210 incl. (132 IEC) 0.6 2.0
Up to 320TSC incl. (180 IEC) 1.2 3.9

Fristam Pumps
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SEAL REPLACEMENT
Begin all pump maintenance by disconnecting the energy source to the pump. Observe
all lock out/tag out procedures as outlines by ANSI Z244.1-1982 and OSHA 1910.147 to
prevent accidental start-up and injury.
TOOLS FOR SEAL REPLACEMENT
15/16” socket
Two 3/4” wrenches
7/16” wrench
9/16” wrench
3/32” Allen wrench
3/8” diameter steel rod
Pliers (channel locks)
Screwdriver (flat blade)
Soft-faced hammer (5 lb. dead-blow)
Food grade lubricant
Optional: One pair of impeller pullers
PUMP HEAD DISASSEMBLY
Note: the reference numbers listed in the text (#) refer to the assembly drawing on pages 16-17.
Disconnect the suction and discharge piping from the pump. Drain all fluid from
the pump prior to disassembly.
a) Loosen the cover nuts (24) with the soft-faced hammer and remove.
b) Remove the pump cover (23) and the cover gasket (19).
c) Loosen the acorn nuts (41) on the front of the cover and remove.
d) Remove the stator (39) and two o-rings (44 & 45). Discard the
o-rings.
e) Remove the seal water pipes (on pumps with a double mechanical
seal only) by turning them counter-clockwise with the pliers.
f) Loosen and remove the guard screw (34). Next remove the shaft
guard (35).
g) Place the 3/8” diameter rod in the pump shaft hole. Allow the rod
to rest against the pump flange support (2) to prevent the shaft
from rotating while loosening the rotor nut (22) with the 15/16”
socket wrench (Figure 7). Remove the rotor nut and the rotor nut gasket (21).
h) Remove the rotor (38) from the pump shaft (6) by grasping a rotor
blade in each hand and pulling the rotor toward you.
i) Compress the seal spring (18) by pushing on the front seal driver
(32) and lift out the rotor key (8) (Figure 8). (You may find it easier
to rotate the keyway to bottom of the shaft, compress the seal
spring, and let the key drop out.)
j) Next remove the front seal driver (32) and seal spring (18) by pull-
ing them off the pump shaft and discard them.
k) Remove the rotating seal (29), seal washer (27) and o-ring (11) by
gently placing the flat ends of two rotor pullers on either side of
the rotating seal and carefully pull (wiggling the seal ring side-
to-side should aid removal) until the rotating seal face comes off
!
! WARNING
Figure 8
1265000122
9/22/03
Figure 7

FS Series Pump
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the shaft (Figure 9). Discard the seal components after you
remove them.
l) Loosen the housing clamping bolt (4) with the two 3/4”
wrenches until it is loose in the flange support (2). (Note: the
clamping bolt does not have to be removed.) Now slide the
housing off the end of the pump shaft (6). If the housing does
not come out of the flange support easily, widen the flange
support by driving a screwdriver into the slot on top (Figure
10).
m) Place the housing (17) face down on the housing studs (30).
n) Loosen the retaining ring bolts (12) with the 7/16” or 9/16”
wrench (depending on seal size) and remove them from the
hub of the stator.
o) Remove the retaining ring (13).
p) Place a finger through the stationary seal (15), pull it out of
the seal cavity and discard. If the stationary seal
has been in the pump for an extended period,
it may be necessary to softly tap it out from the
opposite end using a rubber mallet.
If you have a Silicon Carbide Stationary Seal
design - two pieces will be removed (15a and
15b)
q) Check for the flat gasket (16) in the bottom of
the seal cavity. Remove this gasket, discard and
clean the seal cavity if necessary.
ADDITIONAL DISASSEMBLY FOR DOUBLE MECHANICAL SEALS
ONLY
To remove the rear seal components (only pumps with double seal), carefully slide the rear rotating
seal (28), seal washer (27), the seal o-ring (11) off the pump shaft and discard. Use the 3/32” Allen
wrench to remove the rear seal driver and spring (10) off the pump shaft and discard.
PUMP HEAD ASSEMBLY - (SEE SEAL ASSEMBLY DRAWINGS - FIGURE 17 - 20 - PAGES 10-13)
NOTE: when installing the new seal components
make sure that you use all of the components
supplied with the replacement seal kit. Using
some of the old components may reduce seal
life.
For double mechanical seals only, first install
the rear seal components. Note: this includes
the seal washer (27), the seal o-ring (11), the
rear rotating seal (28) and the rear seal driver
and spring (10).
You are now ready to install the stationary seal
into the pump.
a) To install the stationary seal (15) into the hub
of the housing (17), place the housing on a
clean surface with the hub side up. Inspect
the hub area to ensure that it is clean.
1265000123
9/22/03
Figure 11
1265000059
8/20/02
Figure 10
Figure 9

Fristam Pumps
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b) Place the flat gasket (16) into the hub of the
housingr. Make sure that it is all the way to the
bottom and is seated evenly.
c) Install the stationary seal into the housing hub
with the smaller face entering the hub first.
For the Silicon Carbide Stationary Seal design
(Figures 18 and 20) - install the front half of
the stationary seal (15a) into the housing hub
with the smaller face side first. Then install
the rear half of the stationary seal (15b).
d) Install the stationary seal o-ring (14) (do not
lubricate this o-ring) onto the back of the
stationary seal (15). Improper fit may cause leakage or seal damage.
e) Place the retaining ring (13) on the housing hub, aligning the holes in the retaining ring with the
holes in the hub. Thread the retaining ring bolts (12) through the holes in the stationary seal retain-
ing ring and into the housing hub. Alternately tighten the bolts so the retaining ring secures evenly.
Uneven tightening could result in seal damage. Check for proper torque on page 5.
f) Carefully slide the pump housing over the pump shaft (6) and back against the flange support (2).
The stationary seal may be damaged if it makes hard contact with the pump shaft. If the housing
does not slide into the flange support easily, widen the flange support by driving a screwdriver into
the slot on top (Figure 12). Slide the housing all the way into the flange support until the shoul-
der of the housing is against the flange support. Remove the screwdriver. If the pump has a double
mechanical seal, make sure that the water pipe holes in the housing are aligned with the holes in the
flange support.
g) While holding the housing against the flange support, tighten the clamping bolt (4) in the flange
support.
h) Install the seal water pipes (for double mechanical seals only), by threading them into the housing
and tighten with the pliers.
i) You are now ready to install the rotating seal assembly. First lubricate the seal o-ring (11) with a
food grade lubricant (unless the o-ring material is EPDM, then only water should be used for lubri-
cation). Place the seal o-ring inside the rotating seal (29).
j) Now place the seal washer (27) into the rotating seal.
k) Next install the one end of the seal spring (18) into the rotating seal making sure that the tab of the
spring is in the slot on the rotating seal.
l) Finally, install the tab on the other end of the seal spring into the hole on the front seal driver (32)
(Figure 13). The rotating seal assembly is now ready to be installed onto the pump shaft.
m) Rotate the pump shaft (6) so the keyway is on top. Now slide the rotating seal assembly which in-
cludes: the rotating seal (29), the seal o-ring (11), the seal washer (27), the seal spring (18) and the
seal driver (32) onto the pump shaft.
n) Lubricate the outside o-ring (33) with a food grade lubricant, if it is not EPDM, and install it in the
groove on the front of the seal spring and driver assembly.
1265000059
8/20/02
Figure 12
Figure 13

FS Series Pump
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o) Compress the spring assembly with two fingers and install the
shaft key (8) into the keyway on the pump shaft (Figure 14).
p) Slide the rotor (38) onto the pump shaft (6). The slot in the rotor
hub will slide over the rotor key (8).
q) Generously lubricate the new rotor nut gasket (21) with a food
grade lubricant (if it is not EPDM) and place it onto the rotor nut
(22).
r) Thread the rotor nut with the gasket in place onto the pump shaft
(6).
s) Place the 5/16” diameter rod in the pump shaft hole. Allow the
rod to rest against the pump flange support to keep the shaft from
rotating while tightening the rotor nut with the 15/16” socket
wrench (Figure 15). Tighten to the proper torque listed on page 5.
t) Generously lubricate the two stator o-rings (44 & 45) and place onto the stator (39).
u) Reinstall the stator (39) onto the pump cover (23). Tighten the acorn nuts (41) onto the studs (40)
to the proper torque listed on page 5.
v) Now install the new cover gasket (19) onto the pump
cover (23). When placing the cover gasket into the
pump cover, gently stretch the gasket into position. Do
not roll the gasket into position. With the cover gasket
in position, place the pump cover onto the front of the
pump. (Note: the pump serial number is embossed into
the ‘top’ of the pump cover.)
w) Thread the cover nuts (24) onto the housing studs
(30). Make sure the cover o-ring is properly seated in
the cover to ensure that it will not get pinched when
tightening the cover nuts. Tighten the cover nuts by
tapping on them with the soft-faced hammer.
x) Now rotate the pump shaft (6) to make sure that the
rotor (38) moves freely. If it does not, recheck your
assembly to make sure that gaskets are not pinched and everything is seated properly. Listen to the
pump as you turn the shaft. A small amount of noise from the seals is normal, but if there is metal-
to-metal contact, the sound will be noticeable. If there is metal-to-metal contact, check the rotor
gap. Regap the rotor if necessary. See page 20 for directions. Replace the shaft guard and secure with
the guard screws.
Reconnect the suction and discharge piping.
WARNING: Mechanical seals must never run dry, even momentarily. Seal damage will result.
Figure 14
Figure 15

Fristam Pumps
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323321 31 18 27 11
21 33 32 27 11 16 15 1429
29 16 15 14
21
33
32
27
11
29
ROTOR NUT GASKET
OUTSIDE SEAL DRIVER O-RING
FRONT SEAL DRIVER
ROTATING SEAL WASHER
ROTATING SEAL O-RING
ROTATING SEAL
STATIONARY SEAL O-RING
STATIONARY SEAL
FLAT GASKET
15
16
14
DESCRIPTION
18
SEAL SPRING
18
INSIDE SEAL DRIVER O-RING
31
31 1265000125
9/22/03
Figure 16: Single Seal Assembly

FS Series Pump
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R4: 3/05
21 33 32 18 27 11 29 16 15a
1431
15b
15a 15b
STATIONARY SEAL - REAR HALF
15a
15b
14
16
29
11
27
18
21
33
32
31
32
3321 31 18 27 11 29 16 14
ROTOR NUT GASKET
OUTSIDE SEAL DRIVER O-RING
FRONT SEAL DRIVER
ROTATING SEAL WASHER
ROTATING SEAL O-RING
ROTATING SEAL
STATIONARY SEAL O-RING
STATIONARY SEAL - FRONT HALF
FLAT GASKET
DESCRIPTION
SEAL SPRING
INSIDE SEAL DRIVER O-RING
1265000126
9/22/03
Figure 17: Single Silicon Carbide Stationary Seal Assembly

Fristam Pumps
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R4: 3/05
21 33 32 27 11 16 15 1429
21
33
32
27
11
29
ROTOR NUT GASKET
OUTSIDE SEAL DRIVER O-RING
FRONT SEAL DRIVER
ROTATING SEAL WASHER
ROTATING SEAL O-RING
FRONT ROTATING SEAL
STATIONARY SEAL O-RING
STATIONARY SEAL
FLAT GASKET
15
16
14
DESCRIPTION
18
FRONT SEAL SPRING
18
28
2711
10
31
31 INSIDE SEAL DRIVER O-RING
REAR ROTATING SEAL
28
29 16 15 14 28 11 27 10
1265000127
9/22/03
323321 31 18 27 11
REAR SEAL DRIVER & SPRING & SET SCREWS
10
Figure 18: Double Seal Assembly

FS Series Pump
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R4: 3/05
Figure 19: Double Silicon Carbide Stationary Seal Assembly
18
FRONT SEAL SPRING
INSIDE SEAL DRIVER O-RING
1265000128
9/22/03
28 10
11 27
REAR ROTATING SEAL
28
31
21 33 32 27 11 29 16 14
ROTOR NUT GASKET
OUTSIDE SEAL DRIVER O-RING
FRONT SEAL DRIVER
ROTATING SEAL WASHER
ROTATING SEAL O-RING
FRONT ROTATING SEAL
REAR SEAL DRIVER & SPRING & SET SCREWS
STATIONARY SEAL O-RING
STATIONARY SEAL - FRONT HALF
FLAT GASKET
DESCRIPTION
21 33 32 18 27 11 29 16 15a
1431
15b
15a 15b
STATIONARY SEAL - REAR HALF
15a
15b
14
16
29
11
27
18
21
33
32
31
10
1128 27 10

Fristam Pumps
14
R4: 3/05
!
PUMP SHAFT AND/OR MOTOR REPLACEMENT
Begin all pump maintenance by disconnecting the energy source to the pump. Observe
all lock out/tag out procedures as outlined by ANSI Z244.1-1982 and OSHA 1910.147 to
prevent accidental start-up and injury.
TOOLS FOR PUMP SHAFT AND/OR MOTOR REPLACEMENT:
One 9/16” wrench (for 143TC - 145TC motor frames)
One 3/4” wrench (for 182TC - 320TSC motor frames)
Soft-faced hammer
Gapping shim
Dial indicator
3/16” Allen wrench
1/4” Allen wrench
PUMP DISASSEMBLY
Disassemble the pump as described on pages 6-7.
a) Loosen the shaft collar screw (36) on the shaft collar
(37) with the 3/16” or 1/4” Allen wrench (depending
on the motor frame size).
b) Pull the pump shaft off the motor shaft. If necessary,
rotate the pump shaft and tap with the soft-faced mal-
let to loosen the pump shaft from the motor shaft.
If the pump shaft does not pull off the motor shaft, the
housing (17) and rotor (38) can be reinstalled to aid in
removal (Figure 21). To do this, first ensure that the
stationary seal (15) is not in the housing. Next install the
housing onto the flange support (2). DO NOT TIGHTEN
THE FLANGE CLAMPING BOLT (4). Install the rotor
onto the pump shaft and place a clean cloth or brass
shim between the rotor and housing to prevent the rotor
from scratching the housing during the shaft removal
process. Thread the rotor nut (22) and rotor nut
gasket (21) onto the shaft and tighten by hand.
Now pull on the stator to loosen the pump shaft
from the motor shaft. Tapping on the back of
the stator with the soft-faced mallet may be
required.
ADDITIONAL INSTRUCTIONS FOR MOTOR REPLACEMENT -
Loosen the four motor bolts (26) and remove
the motor bolts and lock washers (25). (Use the
9/16” wrench for 140TC motor frames and 3/4”
wrench for 180TC - 320TSC motor frames.)
Remove the flange support (2) from the motor.
1265000129
9/22/03
Figure 20
Figure 21

FS Series Pump
15
R4: 3/05
PUMP ASSEMBLY
If you have replaced the motor, clean off the motor face of the flange support (2). Place the flange sup-
port onto the new motor and replace the motor bolts (26) and lock
washers (25). Tighten the motor bolts to the torque indicated on
page 5.
ASSEMBLING THE PUMP SHAFT ONTO THE MOTOR SHAFT
Note: when replacing the shaft, replace the shaft collar at the same
time.
a) Slide the new shaft collar (37) onto the pump shaft, do not
tighten the shaft collar screw at this time.
b) Slide the pump shaft and shaft collar onto the motor shaft with the hole in the pump shaft aligned
with the key in the motor shaft.
SETTING THE ROTOR GAP
If you have removed the pump shaft (6) from the motor shaft for
any reason (such as replacing the shaft or motor), you must re-set
the gap.
The gap is measured between the rotor (38) and housing (17).
a) Assemble the housing (17) (without the stationary seal) onto
the flange support (2). Make sure that the shoulder of the
housing bottoms out against the flange support.
b) Tighten the clamping bolt (4) in the flange support. Note:
make sure the housing is level or in line with the piping.
c) Place the front seal driver (32) onto the pump shaft (6).
d) Place the rotor key (8) and rotor (38) onto the shaft (6). Thread the rotor nut (22) onto the shaft and
tighten.
e) Set the gap by placing a 0.5 mm feeler gauge behind the stator (39) (Figure 24). Note: the stator o-rings
shouldn’t be in place at this time.
f) Align the slot of the shaft
collar (37) directly over
one of the slots on the shaft
(Figure 23).
g) Push shaft forward so rotor
is tight to stator and shim.
h) Tighten the shaft collar
screw (36) in the shaft
collar (37) to the proper
torque, see page 5 (Figure
23).
i) Remove the shim.
Now remove the rotor nut
(22), rotor (38), rotor key
(8), front seal driver (32) and
stator (39).
Now you are ready to as-
semble the pump head as
described on pages 7-9.
1265000079
12/9/02
Figure 22
1265000129
9/22/03
Figure 23
1265000131
10/8/03
Figure 24

Fristam Pumps
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1. Motor
2. Flange Support
3. Clamping Bolt Nut
4. Clamping Bolt
6. Pump Shaft
8. Shaft Key
9. Set Screws
10. Rear Seal Driver and Spring
11. Rotating Seal O-ring
12. Retaining Ring Bolts
13. Retaining Ring
14. Stationary Seal O-ring
15. Stationary Seal
16. Flat Gasket
17. Pump Housing
18. Seal Spring
19. Cover Gasket
21. Rotor Nut Gasket
22. Rotor Nut
23. Pump Cover
24. Cover Nuts
25. Lock Washer
26. Motor Mounting Bolts
27. Rotating Seal Washer
28. Rear Rotating Seal
29. Rotating Seal
30. Housing Stud
31. Inside Seal Driver O-ring
(factory installed)
32. Front Seal Driver
33. Outside Seal Driver O-ring
34. Shaft Guard Screw
35. Shaft Guard
36. Shaft Collar Screw
37. Shaft Collar
FIGURE 25: FS ASSEMBLY
MOTOR FRAME SIZES
143-256TC ONLY
36
37
6
8
COMPONENTS
FOR DOUBLE SEAL
ONLY

FS Series Pump
17
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44
45
1265000132
9/23/03
15
16
17
14
19
27
29
11
22
38
21
23
33
18
32
31
30
13
12
39
24
40
41
27
28
11
9
COMPONENTS
FOR DOUBLE SEAL
ONLY
1010
38. Rotor
39. Stator
40. Studs
41. Acorn nuts
42. Washer
43. Housing bolt
44. Inner stator o-ring
45. Outer stator o-ring

Fristam Pumps
18
R4: 3/05
INSTALLATION
UNPACKING
Check the contents and all wrapping when unpacking the pump. Inspect the pump carefully for any dam-
age that may have occurred during shipping. Immediately report any damage to the carrier. Remove the
shaft guard and rotate the pump shaft by hand to make sure the rotor rotates freely. Keep the protective
caps over the pump inlet and outlet in place until you are ready to install the pump.
INSTALLING
Prior to actually installing the pump, ensure that:
• the pump will be readily accessible for maintenance, inspection and cleaning.
•adequate ventilation is provided for motor cooling.
•the drive and motor type is suitable for the environment where it is to be operated. Pumps intend-
ed for use in hazardous environments e.g., explosive, corrosive, etc., must use a motor and drive
with the appropriate enclosure characteristics. Failure to use an appropriate motor type may result
in serious damage and/or injury.
PIPING GUIDELINES
This section describes good piping practices to obtain maximum efficiency and service life from your
pump.
Maximum performance and trouble-free operation require adherence to good
piping practices.
• Ensuring proper piping support and alignment at both the suction inlet
and discharge outlet can help prevent serious damage to the stator (Fig-
ure 1).
• Avoid abrupt transitions in the piping system (Figure 2).
• Avoid throttling valves in the suction piping.
• Keep suction lines as short and direct as possible.
• Avoid sump areas where sediments may collect (Figure 3).
• Avoid the formation of air pockets in the piping (Figure 4).
• Avoid abrupt closure of shut-off valves, this may cause hydraulic
Figure 2
Figure 1
Figure 4
Figure 3

FS Series Pump
19
R4: 3/05
shock which can cause severe damage to the
pump and system.
• Avoid elbows in the suction line if possible. When
necessary they should be located 5 pipe diam-
eters away from the pump inlet, and have a bend
radius greater than 2 pipe diameters (Figure 5).
• Check valves in discharge line should be a mini-
mum of 5 ft. away from the pump outlet (Figure
5).
ELECTRICAL INSTALLATION
We use standard duty TEFC motors unless otherwise specified. Many motor options are available: wash-
down, flameproof, explosion proof, hostile duty or chemical duty.
The motor selected should meet the requirements of the specified operating conditions. A change in
conditions (for example, higher viscosity, higher specific gravity, lower head losses) can overload the
motor. When changing operating conditions or whenever there is any doubt, please contact Fristam
Pumps, Inc., for technical assistance.
Have an electrician connect the motor using sound electrical practices. Provide adequate protection.
Pumps fitted with mechanical seals must not run dry, not even momentarily. Determine the direction
of rotation by watching the motor fan, which must turn clockwise.
PUMP OPERATIONS
START-UP INSTRUCTIONS
• Remove any foreign matter that may have entered the pump.
• Do not use the pump to flush the system!
Check pump for proper rotation as indicated on the pump. Proper motor direction is clockwise when
looking at the fan end of the motor. (NOTE: When checking the direction of rotation, the pump must
be full of liquid.)
• Never run the pump dry, even momentarily. Seal damage can result.
SHUT-DOWN INSTRUCTIONS
• Shut off the power supply to the pump.
• Close the shut-off valves in the suction and discharge piping.
• Drain and clean the pump.
• Protect the pump against dust, heat, moisture and impact damage.
Figure 5

Fristam Pumps
20
R4: 3/05
COOLING WATER IN
WATER PIPE CONNECTIONS
FOR DOUBLE SEALS
1/8" N.P.T.
THROTTLE THIS VALVE
TO 1-2 GAL/HR
VISIBLE WATER
FLOW
TO DRAIN
2-5 FEET
IL-0173
7/7/00
Figure 6
INSTALLATION OF WATER FLUSH FOR DOUBLE MECHANICAL SEAL
Set up the water flush for the double mechanical seal as shown (Figure 6). Use only between 1-2 gal-
lons per hour of water at a maximum pressure of 5 PSI. Excessive flow of water through the seal
increases the pressure inside the seal. Note: maximum pressure inside the seal is 5 PSI. Excessive
flow/pressure through the seal flush will cause excessive wear and shorten seal life.
Pipe the exit side of the water flush with 2-5 feet physical height of tubing. This ensures that some
water is always in the center seal and the seal never runs dry.
It is possible to inject steam through the center seal (within the pressure requirements). We do not
recommend using steam alone for the cooling/lubricating of the seal.
It is desirable to have the flush water on the outlet side visible. This allows an easy check to see that the
flush water is on and also if the seal is functioning properly. In a malfunctioning seal the flush water
will disappear, become discolored, or show an unusual increase in flow. If these conditions exist, check
the seal and replace if necessary.