Flofab 880RI Series User manual

SINCE 1981
www.flofab.com
001-iom-2017-880ri
Operation, Maintenance
& Installation Manual
Centrifugal
Pumps
Series 880RI
IOM 880RI.indd 1 2017-11-14 13:03:53

CAUTION!!
DO NOT RUN PUMP DRY, SEAL DAMAGE MAY
OCCUR. INSPECT PUMP SEAL REGULARLY FOR LEAKS,
REPLACE AS REQUIRED.
FOR LUBRICATION REQUIREMENTS, CONSULT
SERVICE INSTRUCTIONS. FAILURE TO FOLLOW
INSTRUCTIONS COULD RESULT IN INJURY OR
PROPERTY DAMAGE. COUPLER ALIGNMENT IS REQUIRED!
LEVEL AND GROUT PUMP BEFORE USE!
CHECK ALIGNMENT BEFORE
GROUTING, AFTER SYSTEM 18 FILLED, AFTER SERVICING
PUMP, AND AS REQUIRED.
CONSULT THE SERVICE INSTRUCTIONS FOR DETAILS.
FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN INJURY OR
PROPERTY DAMAGE. FAULT TO FOLLOW THIS
INSTRUCTION MAY VOID THE WARANTY OF THE UNIT.
IOM 880RI.indd 2 2017-11-14 13:03:54

SINCE 1981
2
I.O.M - 880RI SERIES
FLO FAB In Line pumps are designed to be mounted vertically in the pipe line with the motor
above the pump. Center line suction and discharge keep weight evenly balanced and directly
down upon the piping. No exible connections to take up pipe misalignement are necessary
since pump is not permanently connected to anything but the piping and is free to move with
the expansion and contraction of the piping system. Support of the piping at the pump may be
made by two pipe hangers, oor saddles or oor anges, placed on line close to the pump.
Selection of the actual type of support is determined after consideration of the structural cha-
racteristics at the location of the pump, size and weight of both the piping and the pump, ex-
pansion and contraction of the piping, etc. In other words, the same criteria and formula for
selecting piping supports are used with the additional consideration that the weight of the pump
is concentrated at one point in the piping. Otherwise, piping recommendations are the same as
for other types of pumps. For example, gate valves should be installed at both the pump suction
and discharge to permit servicing of the pump without draining the entire system. If vertical in-
line pumps are mounted in a straight horizontal run of piping, then the weight of the piping and
pump system is generally supported by pipe supports, or spring hangers, and experience has
shown that no additional pump support, vibration or noise isolation devices are required.
A. INSTALL VERTICAL IN INLINE PUMPS WITH MOTOR IN VERTICAL POSITION.
B. MAKE CERTAIN THE SPACE ABOVE THE PUMP IS SUFFICIENT TO GIVE CLEARANCE FOR
LIFTING THE PUMP ASSEMBIY FROM THE CASING. ALSO THE SPACE AROUND THE
PUMP SHOULD BE LARGE ENOUGH FOR GENERAL ACCESSIBILITY AND VENTILATION.
C. SUPPORT PUMP ONLY BY PIPING.
D. MANUALLY VENT ALL AIR FROM CASING.
E. MAKE SURE SUCTION VALVE IS WIDE OPEN BEFORE STARTING MOTOR
F. CHECK MOTOR ROTATION (CLOCKWISE LOOKING DOWN FROM TOP OF MOTOR).
VERTICAL IN LINE PUMPS
CAUTION
IOM 880RI.indd 3 2017-11-14 13:03:55

SINCE 1981
3
Larger FLO FAB Vertical In Line pumps and Split Coupled pumps
have supporting Floor plate under the cosing. These pumps are
to be oor mounted but other wise piped-up the same way os shown. Although Vertical In line
pumps ore vibration free, it is recommended for oor mounted pumping units to provide isolation
between pedestal block and foundation structvre and exible members in pipes adjacent to pump.
Typically, the natural rubber pad would hove a hardness in the range of 50 duro metres, a thickness of
0.375 inches and up, depending on the loading and site conditions, and be designed for a maximum
detection of 8 mm. This arrangement has been used, successfully, for many years on all types
of ooring systems. The recom mended arrangement diminishes noise transmission and provides
adequate vibration isolation in the horizontal and vertical planes.
If you are using the MFV valves as a balancing valve, you must hove these installed 10 times the
pipe size diameter to obtain any type of accuracy. IF these are only to be used as a throttling,
check, and shut off valve, then 5 times the pipe diameter after the pump discharge is accep-
table. If the system balancing at less than 50% stem rise and this is the primary balance valve,
ASHREA Standard 90.1 and Flo Fob recommend trimming the impeller to the necessary system
design ow. This will reduce electrical energy consumption and comply with the Notional Ener-
gy Building Code Standard. To avoid noise problems ond possible damage to the valve I do not
exceed 25 feet of pressure drop across the MFV valve.
FLOOR MOUNTED TYPE VERTICAL IN LINE PUMPS
When Installing MFV Valve
I.O.M - 880RI SERIES
IOM 880RI.indd 4 2017-11-14 13:03:59

SINCE 1981
4
Each plate has a gasket that produces a sealing and channel system through the entire plate
pack in which the two heat exchanging media ow in a counter-current direction.
The circular portion of the gasket stops the uid from going across the heat transfer plate and
sends it to the next open channel. The remaining portion or eld gasket, directs the opposing
uid across the heat transfer surface.
The gasket can be mechanically clipped to the plate with the glue free “U” shaped clip or glued
in place.
STARTING OF ELECTRIC MOTOR DRIVEN PUMPS
1. Before connecting motor and starter to the line:
1.1. Check wiring information available inside the conduit box.
1.2. Check voltage and frequency of power supply with what s shown on motor nameplate.
1.3. Check current rating of overload relays and fuses against nameplate full load current
value.
2. Check lubrication and pocking (see MAINTENANCE}.
3. Check if rotor is free to turn. It must be possible to revolve the rotor by hand. If the
rotor drags even slightly, do not operate until the cause of trouble is located and correc-
ted.
4. For unit with uid drive, refer to the maintenance instructions of Auid drives.
5. If unit is for high temperature application, refer to operating instructions For high tem-
perature pumps.
6. Prime the pump. A pump is primed when cosing and suction line are lled with liquid
and when all the air contained in the pump has been allowed to escape. If pump is to
operate under suction lift without foot valve, priming is done by pumping air out by
means of an ejector, on exhauster or a vacuum pump.
7. Check direction of driver rotation. Proper direction is indicated by arrow on pump ca
sing.
8. Check electric motor current as soon as motor is started to verify whether or not the
mechanical load applied corresponds to the motor rating. The continuous full load cur
rent value should be within the electric motor nameplate rating with service factor taken
into account.
OPERATION
A. MAKE SURE THE GATE VALVE ON PUMP SUCTION IS FULLY OPEN AS THROTILING ON
SUCTION SIDE IS HARMFUL TO THE PUMP.
B. MAKE SURE PUMP WILL NOT RUN DRY. MOST CENTRIFUGAL PUMPS HAVE CLOSE CLEA-
RANCES AND CANNOT RUN DRY WITHOUT SERIOUS DAMAGE RESULTING.
CAUTION
I.O.M - 880RI SERIES
IOM 880RI.indd 5 2017-11-14 13:03:59

SINCE 1981
5
Here are some general suggestions for long term storage. The applicability of all, or some, of
these suggestions depends on several factors such as type of equipment, length of storage, and
condition of the environment.
LONG TERM STORAGE
GENERAL CARE
Drain the casing completely and dry it throughly, including its bearing housing and stufng box,
or seal chamber. Apply a coat of soluble rust preventive solution both internally and externally.
Cover all openings. Flanged openings (such as suction and discharge nozzles) should be covered
with blind anges with elastomer gasket. Threaded openings should be covered with steel plugs
or caps.
Protect the bearing housing from moisture by placing bags of vapor phase inhibitor crystals
around the housing.
Cover the equipment with industrial strength plastic, preferably transparent to allow its visual
inspection, including its nameplate, without uncovering the unit.
Store the unit in its normal position in a dry place.
Inspect the unit periodically and turn the shaft a few times at least 1/4 turn. Turning the shaft
prevents pitting of nished surfaces. The extra 1/4 turn is to displace the sag and prevent the
shaft from developing a permanent bow.
This needs to be done at least once a month
I.O.M - 880RI SERIES
IOM 880RI.indd 6 2017-11-14 13:03:59

SINCE 1981
6
GENERAL CARE
Each plate has a gasket that produces a sealing and channel system through the entire plate
pack in which the two heat exchanging media ow in a counter-current direction.
The circular portion of the gasket stops the uid from going across the heat transfer plate and
sends it to the next open channel. The remaining portion or eld gasket, directs the opposing
uid across the heat transfer surface.
The gasket can be mechanically clipped to the plate with the glue free “U” shaped clip or glued
in place.
1 . Keep unit clean.
2. Avoid excessive belt tension.
3. Provide the motor with adequate overload protection.
4. Keep ying chips or other loose particles away from the ventilating openings of
the motor.
5. Avoid operating the unit in overheated surroundings.
6. Guard three phase motor against single phasing which is frequently accompa-
nied by an unusual humming soud, a drop in speed, and by excessive heating
which, if continued, may burn out the motor windings.
7. Use thermometers when checking temperatures.
8 If pump is standing idle in freezing weather, pump casing and piping should be
drained.
MAINTENANCE
1. LIFE LUBRICATED BEARINGS are heavy duty permanently lubricated, sealed type and require
no maintenance
2. GREASE LUBRICATED BEARINGS require very little attention. More trouble can be caused by
overcharging than by undercharging with grease. Approximately every month, depending on
service, inject a small quantity of grease (Esso Andok No. 280 or equal} into bearing container
after removing the grease outlet plug so that old grease is ushed out and bearing is not over-
lled.
A systematic inspection made at regular intervals, giving special attention
to the following, will ensure years of trouble-free operation.
BEARINGS
I.O.M - 880RI SERIES
IOM 880RI.indd 7 2017-11-14 13:04:00

SINCE 1981
7
Standard FLO FAS pumps are equipped with mechanical seals. Standard mechanical seals have
Ni-resist seat, carbon washer and Viton below. Maximum recommended operating temperatures
and pressures are shown below.
MECHANICAL SHAFT SEAL LIMITATIONS
A. A MECHANICAL SEAL IS A PRECISION PRODUCT. HANDLE IT WITH CARE. SPECIAL CARE
MUST BE TAKEN WITH THE SEALING WASHER AND SEAT. DO NOT LET THEM DROP AND TAKE
PARTICULAR CARE NOT TO SCRATCH THE LAPPED FACES.
B. NEVER RUN SEALS DRY.
C. FOLLOW SEAL MANUFACTURER’S INSTRUCTIONS.
CAUTION
I.O.M - 880RI SERIES
IOM 880RI.indd 8 2017-11-14 13:04:01

SINCE 1981
8
1 . Protect pump with a suitable strainer
2. Never pump a liquid for which the pump was not designed (check with your FLO FAS
representative).
3. Keep the right amount of the right lubricant in bearings at all times, Following lubrica-
tion instructions.
4. Check periodically pump and motor alignment.
5. Any down sloping towards the pump in suction piping should be corrected.
6. See that piping puts no strain on pump casing.
7. Never allow pump to run dry.
8. Examine wearing rings at regular intervals.
9. If shaft sleeves are badly scored, replace them immediately.
10. If the liquid being pumped contains grit, o separate source of sealing liquid should be
used.
11. A routine maintenance schedule should be set-up to ensure an optimum inspection and
service operation in order to get the best service out of your pumping equipment.
PREVENTIVE MAINTENANCE
VERTICAL IN -LINE PUMP
MAINTENANCE AND SERVICE
Vertical pumps are built to operate without periodic maintenance with the exception of lubrica-
tion motor bearings with silicone grease such as Dow-Corning 44, Keystone #78 or Supermill
ASU 06752 grease every 3 months. Good operational life will depend upon proper pump sele-
dion, installation and continuous water lubrication of the mechanical seals. The air vent plug
must always be loosened to thoroughly vent casing before start-up and to insure water lubrica-
tion of mechanical seals.
Impurities in the system will shorten the operational life of mechanical seals due to the general-
ly abrasive charaderistics of these impurities. Most common is black iron oxide which is highly
magnetic and has a tendency to fonn hard coating on all surfaces in contact with water. Water
treatment is also an important factor in seal life. It is recommended that the chromate content
in wafer be limited to 250 ppm.
I.O.M - 880RI SERIES
IOM 880RI.indd 9 2017-11-14 13:04:01

SINCE 1981
I.O.M - 880RI SERIES
9
It is unnecessary to disconnect piping or casing to service these pumps. All service and mainte-
nance can be performed by removing pump assembly from casing.
1. Remove casing bolts, connecting casing and the spacer coupling and entire pump power
frame assembly con be withdrawn frorn casing living the motor and cosing in place.
2. Remove impeller bolt by turning it counter clockwise. Pull off the impeller by wedging
around its periphery and slip out the impeller key From its shaft groove.
3. Slide spring loaded carbon rotating face off impeller shaft.
4. If wear rings are to be replaced, split with cold chisel to remove from its recess. Replace
ring after smoothing and lightly lubricating recess and tap the new ring with a lead
hammer.
5. If pump shaft sleeve is to be replaced, it is important that no pressure be placed upon
the pump bearings.
TYPE 880RI PUMPS DISASSEMBLY
IOM 880RI.indd 10 2017-11-14 13:04:03

SINCE 1981
1. Clean seal recess of adapter. Lightly lubricate seat ring and press stationary seal assem-
bly and adapter.
2. Bolt power frame and braket to adopter. Use caufon not to bump the motor shaft.
3. Replace impeller key in shaft groove. Slip on spring loaded carbon seal and impeller on
shaft.
4. Replace impeller cap screw and tighten by turning clockwise.
5. Remove old cosing and adapter gasket and clean off any pieces that may have broken
off on theses castings. Put new gasket on adapter.
6. Lower pump power assembly into casing. Use caution to properly align impeller into co-
sing so that it will not be damaged. Tighten-up cop screws evenly and in rotation.
7. Replace motor and power frame key into these shafts.
8. Slide both ange coupling with the insert between them and tighten both set screws.
9. Fill pump casing with water and vent all air by loosening air vent plug.
10. Re-connect motor wiring. Check motor rotation to insure proper operation.
PUMP RE-ASSEMBLY
I.O.M - 880RI SERIES
10
IOM 880RI.indd 11 2017-11-14 13:04:03

SINCE 1981
11
The service for which centrifugal pump is used will determine, to a great extent, the minimum
number of spore ports that should be carried in stock at the installation site. The minimum for
any centrifugal pump should include:
- One set of wearing rings
- One set of shaft sleeves (or a shaft if no sleeves are used)
- One set of bearings
- Sufent stock of spare mechanical seal
- Material For gasket
When ordering spare or repair ports, always give pump serial number and full description of
part(s) required.
FLO FAB pumps ore guaranteed against defective workmanship and material For a period of
twelve months from date of shipment from Manufacturing Plant. Should the pump fail within
this warranty period, our responsibility is limited to the repair or replacement of defective parts,
provided such ore returned to our Plant, transportation prepaid. We do not accept liability for
damage or break-down from causes beyond our control, or the result of reasonable wear nor for
repair mode, or attempted to be made without prior sanction, nor for any consequential damage
resulting From the failure of a pump. The customer will assume all labour charges incurred in
making the replacement or adjustment of the parts
PLEASE NOTE THAT THERE IS NO GUARANTEE ON MECHANICAL SHAFT SEALS.
RENEWAL PARTS
WARRANTY
TROUBLE CHART (SEE KEY IN THE NEXT PAGE)
I.O.M - 880RI SERIES
IOM 880RI.indd 12 2017-11-14 13:04:06

SINCE 1981
(SEE KEY IN THE NEXT PAGE)
12
SUCTION TROUBLES
1. Pump not primed.
2. Pump or suction pipe not
completely lled with liquid.
3. Suction lift too high.
4. Insufcient margin
between suction pressure
and vapor pressure
(available NPSH too low).
5. Excessive amount of air
or gas in liquid.
6. Air pocket in suction line,
7. Air leakage into suction
line.
8. Air leakage into pump
through stufng boxes.
9. Foot valve too small.
10. Foot valve partially clog-
ged.
11. Inlet of suction pipe in-
sufciently submerged,
12. Water seal pipe plugged.
13. Seal cage improperly
located in stufng box, pre-
venting sealing uid entering
space to form the seal.
SYSTEM TROUBLES
14. Speed too low.
15. Speed too high.
16. Wrong direction of rota-
tion.
17. Total head of system hi-
gher than pump design head.
18. Total head of system lower
than pump design head.
19. Specic gravity of liquid
different than design.
20. Viscosity of liquid differs
from that for which designed.
21. Operation at very low ca-
pacity.
22. Parallel operation of
pumps unsuitable for such
operation.
MECHANICAL
TROUBLES
23. Foreign matter in impel-
ler.
24. Misalignment.
25. Foundation not rigid.
26. Shaft bent.
27. Rotating part rubbing on
stationary part.
28. Bearing worn.
29. Wearing rings worn.
30. Impeller damaged.
31. Casing gasket defective,
permitting internal leakage.
32. Shaft or shaft slee-
ves worn or scored at the
packing.
33. Packing improperly ins-
talled.
34. Incorrect type of packing
for operation conditions.
35. Shaft running off-center
due to worn bearings or mi-
salignment.
36. Rotor out of balance re-
sulting
in vibration.
37. Gland too tight, resul-
ting in no Flow of liquid to
packing.
38. Failure to provide cooling
liquid to water-cooled stufng
boxes.
39. Excessive clearance
at bottom of stufng box
between shaft and casing,
causing packing to be forced
into pump interior.
40. Dirt or grit in sealing
liquid, leading to scoring of
shaft or shaft sleeve.
41. Excessive thrust caused
by a mechanical Failure
inside the pump or by the
failure of the hydraulic balan-
cing device, if any.
42. Excessive amount of
grease or oil in the housing
of on antifriction bearing or
lack of cooling, causing ex-
cessive bearing temperature.
43. Lack of lubrications.
44. Improper installation
of antifriction bearings
(damage during assembly).
45. Dirt getting into bearings.
46. Rusting of bearings due
to water getting into housing.
47. Excessive cooling of
waler-cooled bearing resul-
ting in condensation in the
bearing housing of moisture
from the atmosphere.
KEY
I.O.M - 880RI SERIES
IOM 880RI.indd 13 2017-11-14 13:04:06