Important ..................................................................................................................................................................... 3
Declaration of Conformity ......................................................................................................................................... 21
Pump Model Number:
Pump Serial Number:
Dealer:
Dealer Phone No.:
Date of Purchase:
Date of Installation:
Current Readings at Startup:
1 Ø 3 Ø L1-2 L2-3 L3-1
Amps: Amps:
Volts: Volts:
2
SAFETY INSTRUCTIONS
DANGER
WARNING
CAUTION
WARNING
Hazardous fluids
can cause fire,
burns or death.
CAUTION
CAUTION
CAUTION
TO AVOID SERIOUS OR FATAL PERSONAL
INJURY OR MAJOR PROPERTY DAMAGE, READ
AND FOLLOW ALL SAFETY INSTRUCTIONS IN
MANUAL AND ON PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE
INSTALLATION AND OPERATION OF THIS UNIT
AND MUST BE KEPT WITH THE PUMP.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the pump
or in the manual, look for one of the
following signal words and be alert
to the potential for personal injury or
property damage.
Warns of hazards that WILL cause
serious personal injury, death or major
property damage.
Warns of hazards that CAN cause
serious personal injury, death or major
property damage.
Warns of hazards that CAN cause personal injury or property damage.
NOTICE: INDICATES SPECIAL INSTRUCTIONS
WHICH ARE VERY IMPORTANT AND
MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS
AND WARNINGS PRIOR TO PERFORMING ANY
WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
UNIT NOT DESIGNED FOR USE
WITH HAZARDOUS LIQUIDS OR
FLAMMABLE GASES. THESE
FLUIDS MAY BE PRESENT IN
CONTAINMENT AREAS.
1.3 Motors must be wired for proper voltage. Motor wir-
ing diagram is on motor nameplate. Wire size must
limit maximum voltage drop to 10% of nameplate
voltage at motor terminals, or motor life and pump
performance will be lowered.
1.4 Always use horsepower-rated switches, contactor and
starters.
1.5 Motor protection
1.5.1 Single-phase: Thermal protection for single-
phase units is sometimes built in (check nameplate). If no built-in protection is provided, use
a contactor with a proper overload. Fusing is
permissible.
1.5.2 Three-phase: Provide three-leg protection with
properly sized magnetic starter and thermal
overloads.
1.6 Maximum Operating Limits:
Liquid Temperature: 140ºF (60ºC)
Working Pressure: 85 PSI
Starts per Hour: 20, evenly distributed.
1.7 Regular inspection and maintenance will increase
service life. Base schedule on operating time. Refer
to Section 8.
2. INSTALLATION
2.1 Locate pump as near liquid source as possible (below
level of liquid for automatic operation).
2.2 Protect from freezing or flooding.
2.3 Allow adequate space for servicing and ventilation.
2.4 All piping must be supported independently of the
pump, and must “line-up” naturally.
DESCRIPTION and SPECIFICATIONS:
The Model LB is a single stage, centrifugal jet pump for
general liquid transfer service and booster applications.
The liquid end utilizes a 304SS stamped casing, Noryl®
impeller, Lexan® ejector and guidevane, Amodel®
motor adapter and EPR o-rings. All motors are NEMA
48Y and 56Y square flange with a 304SS threaded shaft
extension.
1. IMPORTANT
1.1 Inspect unit for damage. Report any damage to car-
rier/dealer immediately.
1.2 Electrical supply must be a separate branch circuit
with fuses or circuit breakers, wire sizes, etc., in
compliance with National and Local electrical codes.
Install an all-leg disconnect switch near pump.
ALWAYS DISCONNECT ELECTRICAL
POWER WHEN HANDLING PUMP OR
CONTROLS.
NEVER DRAW PIPING IN PLACE BY
FORCING THE PUMP SUCTION AND
DISCHARGE CONNECTIONS.
2.5 Avoid unnecessary fittings. Select sizes to keep fric-
tion losses to a minimum.
2.6 Units may be installed horizontally, inclined or verti-
cally.
DO NOT INSTALL WITH MOTOR
BELOW PUMP. ANY LEAKAGE OR
CONDENSATION WILL AFFECT THE MOTOR.
2.7 Foundation must be flat and substantial to eliminate
strain when tightening bolts. Use rubber mounts to
minimize noise and vibration.
2.8 Tighten motor hold-down bolts before connecting
piping to pump.
3. SUCTION PIPING
3.1 Low static suction lift and short, direct, suction pip-
ing is desired. Consult pump performance curve for
Net Positive Suction Head Required.
3
3.2 Suction pipe must be at least as large as the suction
CAUTION
CAUTION
CAUTION
connection of the pump. Smaller size will degrade
performance.
3.3 If larger pipe is required, an eccentric pipe reducer
(with straight side up) must be installed at the pump.
3.4 Installation with pump below source of supply:
3.4.1 Install full flow isolation valve in piping for
inspection and maintenance.
DO NOT USE SUCTION ISOLATION
VALVE TO THROTTLE PUMP.
5. ROTATION
5.1 Correct rotation is right-hand (clockwise when
viewed from the motor end). Switch power on and
off quickly. Observe shaft rotation. To change rotation:
5.1.1 Single-phase motor: Non-reversible
5.1.2 Three-phase motor: Interchange any two power
supply leads.
6. OPERATION
3.5 Installation with pump above source of supply:
3.5.1 Avoid air pockets. No part of piping should be
higher than pump suction connection. Slope
piping upward from liquid source.
3.5.2 All joints must be airtight.
3.5.3 Foot valve to be used only if necessary for prim-
ing, or to hold prime on intermittent service.
3.5.4 Suction strainer open area must be at least
triple the pipe area.
3.6 Size of inlet from liquid source, and minimum sub-
mergence over inlet, must be sufficient to prevent air
entering pump through vortexing. See Figures 2-5.
3.7 Use 3-4 wraps of teflon tape to seal threaded connec-
tions.
H min.
D
Figure 1Figure 2
3.0D
min.
1.5D
min.
H min.
D min.
DD
2
Figure 3Figure 4
H min.
H
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
H = Min. Submergence in feet
1
12345678910 11121314 1516
V = Velocity in feet per second
= GPM x 0.321
Area
GPM x 0.4085
D
V
2
D
4. DISCHARGE PIPING
4.1 Allowance should be made for disconnecting dis-
charge piping near casing to allow for pump disassembly.
4.2 Arrangement must include a check valve located
between a gate valve and the pump. The gate valve
is for regulation of capacity, or for inspection of the
pump or check valve.
4.3 If an increaser is required, place between check valve
and pump.
4.4 Use 3-4 wraps of Teflon tape to seal threaded connec-
tions.
4
6.1 Before starting, pump must be primed (free of air
and suction pipe full of liquid) and discharge valve
partially open.
6.2 Make complete check after unit is run under operat-
ing conditions and temperature has stabilized. Check
for expansion of piping.
7. MAINTENANCE
7.1 Ball bearings are located in and are part of the mo-
tor. They are permanently lubricated. No greasing
required.
PUMPED LIQUID PROVIDES LU-
BRICATION. IF PUMP IS RUN DRY,
ROTATING PARTS WILL SEIZE AND MECHANICAL
SEAL WILL BE DAMAGED. DO NOT OPERATE AT
OR NEAR ZERO FLOW. ENERGY IMPARTED TO
THE LIQUID IS CONVERTED INTO HEAT. LIQUID
MAY FLASH TO VAPOR. ROTATING PARTS REQUIRE LIQUID TO PREVENT SCORING OR SEIZING.
8. DISASSEMBLY
8.1 Complete disassembly of the unit will be described.
Proceed only as far as required to perform the maintenance work required.
8.1.1 Turn off power.
8.1.2 Drain system and flush if necessary.
8.1.3 Remove motor hold-down bolts.
8.2 Disassembly of liquid end:
8.2.1 Remove casing screws (3).
8.2.2 Remove back pull-out assembly from casing.
8.2.3 Remove nozzle/venturi assembly (6) and
o-rings (5, 7).
8.2.4 Remove guidevane (8).
DO NOT INSERT SCREWDRIVER
BETWEEN THE FAN BLADES TO
PREVENT ROTATION.
8.2.5 Remove impeller (9) by rotating in a counter-
clockwise direction.
NOTE: For single and three phase motors, re-
move the motor end cover and hold the flats on
the shaft with a wrench to stop rotation.
NOTE: Further disassembly will require
removal of the mechanical seal. It is recommended that a new mechanical seal be installed
at reassembly.
8.2.6 Lubricate the shaft and mechanical seal with
soapy water.
8.2.7 Remove rotary portion of the mechanical seal
(10).
8.2.8 Remove motor adapter screws (15) and motor
adapter (13) from motor.
8.2.9 Remove stationary portion of mechanical seal
(11) from motor adapter (13).
9. REASSEMBLY
9.1 Clean all parts before reassembly.
9.2 Recommend replacement of o-rings (5, 7, 12) and
mechanical seal (10, 11) if removed during disassembly procedure.
9.3 Inspect and replace nozzle/venturi assembly (6) if any
surface deterioration is noticed in the nozzle area.
9.4 Reassembly is the reverse of disassembly. Observe the
following when reassembling the pump.
9.5 Lubricate o-rings and mechanical seal with soapy
water to ease assembly.
9.6 Tighten casing screws (3) to 10 ft.-lb. of torque using
a star pattern to prevent o-ring binding.
TROUBLESHOOTING
SYMPTOM
MOTOR NOT RUNNING
See Probable Causes 1 thru 6
LITTLE OR NO LIQUID DELIVERED
See Probable Causes 7 thru 17
POWER CONSUMPTION TOO HIGH
See Probable Causes 4, 17, 18, 19, 22
EXCESSIVE NOISE AND VIBRATION
See Probable Causes 4, 6, 9, 13, 15, 16, 18, 20, 21, 22
PROBABLE CAUSES
1. Tripped thermal protector
2. Open circuit breaker
3. Blown fuse
4. Rotating parts binding
5. Motor wired improperly
6. Defective motor
7. Not primed
8. Discharge plugged or valve closed
9. Incorrect rotation
10. Foot valve too small, suction not submerged,
inlet screen plugged
11. Low voltage
12. Phase loss (3-phase only)
13. Air or gasses in liquid
14. System head too high
15. NPSHA too low:
Suction lift too high or suction losses excessive
Check with vacuum gauge
16. Impeller worn or plugged
17. Incorrect impeller diameter
18. Head too low, causing excessive flow rate
19. Viscosity or specific gravity too high
20. Worn bearings
21. Pump or piping loose
22. Pump and motor misaligned
5
LB COMPONENTS PARTS TABLE
Item No. Part Description Material
1 Plug 304 SS
2 O-ring – plug EPR
3 Socket – head screw 304 SS
4 Casing with plug 304 SS
5 O-ring – suction EPR
6 Nozzle/venturi assembly Lexan® 500
7 O-ring – guide vane EPR
8 Guide vane Lexan® 10% G.F.
LB05 4.50" DIA.
9 Impeller LB07 5.00" DIA. Noryl® GFN2
LB10 5.25" DIA.
10 Mechanical seal – Rotary Carbon
11 Mechancal seal – stationary Ceramic
12 O-ring – casing EPR
13 Motor adapter with inserts Amodel® 45% G.F.
14 Pipe plug SAE 1018
15 Hex cap screw Steel (zinc plated)
16 Base Steel
17 Grommet BUNA
This warranty applies to all water systems pumps manufactured by Goulds Water Technology.
Any part or parts found to be defective within the warranty period shall be replaced at no charge to the dealer during the warranty period. The warranty period shall exist for a
period of twelve (12) months from date of installation or eighteen (18) months from date of manufacture, whichever period is shorter.
A dealer who believes that a warranty claim exists must contact the authorized Goulds Water Technology distributor from whom the pump was purchased and furnish complete
details regarding the claim. The distributor is authorized to adjust any warranty claims utilizing the Goulds Water Technology Customer Service Department.
The warranty excludes:
(a) Labor, transportation and related costs incurred by the dealer;
(b) Reinstallation costs of repaired equipment;
(c) Reinstallation costs of replacement equipment;
(d) Consequential damages of any kind; and,
(e) Reimbursement for loss caused by interruption of service.
For purposes of this warranty, the following terms have these definitions:
(1) “Distributor” means any individual, partnership, corporation, association, or other legal relationship that stands between Goulds Water Technology and the dealer in
purchases, consignments or contracts for sale of the subject pumps.
(2) “Dealer” means any individual, partnership, corporation, association, or other legal relationship which engages in the business of selling or leasing pumps to customers.
(3) “Customer” means any entity who buys or leases the subject pumps from a dealer. The “customer” may mean an individual, partnership, corporation, limited liability
company, association or other legal entity which may engage in any type of business.
THIS WARRANTY EXTENDS TO THE DEALER ONLY.
Xylem, Inc.
2881 East Bayard Street Ext., Suite A
Seneca Falls, NY 13148
Phone: (800) 453-6777
Fax: (888) 322-5877
www.xyleminc.com/brands/gouldswatertechnology
Goulds is a registered trademark of Goulds Pumps, Inc. and is used under license.