Xylem Goulds NPO User Manual
INSTRUCTION MANUAL
IM012R06
Model NPO
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
SUBJECT PAGE
Safety Instructions .........................................................................................................................................................3
Description and Specifications .......................................................................................................................................3
Engineering Data ...........................................................................................................................................................3
Optional Pump Styles ....................................................................................................................................................3
Piping – General ............................................................................................................................................................3
Piping – Suction ............................................................................................................................................................3
Piping – Discharge .........................................................................................................................................................3
Wiring and Grounding ..................................................................................................................................................4
Operation ......................................................................................................................................................................4
Maintenance..................................................................................................................................................................4
Disassembly ...................................................................................................................................................................4
Assembly .......................................................................................................................................................................5
Troubleshooting ............................................................................................................................................................5
Pump Parts and Materials of Construction.....................................................................................................................6
Commercial Warranty ...................................................................................................................................................7
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
DANGER
WARNING
CAUTION
WARNING
Hazardous fluids
can cause fire,
burns or death.
SAFETY INSTRUCTIONS
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.
DESCRIPTION & SPECIFICATIONS:
The Series NPO embraces a line of 1", 1¼" and 1½" NPT
discharge, general liquid transfer and booster pump application end suction centrifugal pumps. The liquid end
construction is of AISI 316 stainless steel, stamped and
welded. Open vane impellers are ideal for liquids with
suspended solids to 3⁄8" diameter.
ENGINEERING DATA
Max Liquid Temperature:
212º F (100º C) Standard seal
250º F (120º C) Optional high temperature seal
Max Pressure: 125 psi (862 kPa)
Starts per Hour: 20 – Evenly distributed
OPTIONAL PUMP STYLES
Optional bearing frame mounted or close-coupled, single
and three phase, ODP, TEFC and three phase explosion
proof motors are available. Optional mechanical seals
include: Carbon/Ceramic/BUNA, Carbon/Ceramic/Viton,
Carbon/Silicon Carbide/EPR, Silicon Carbide/Silicon
Carbide/EPR and Silicon Carbide/Silicon Carbide/Viton.
Consult with your distributor for price and availability.
PIPING – GENERAL
Piping should be no smaller than the pump connection
size and kept as short as possible, avoiding unnecessary
fittings to minimize friction losses.
All piping MUST be independently supported and
MUST NOT place any piping loads on the pump.
NOTICE: DO NOT FORCE PIPING INTO PLACE
AT PUMP SUCTION AND DISCHARGE
CONNECTIONS.
All pipe joints MUST be airtight.
PIPING – SUCTION
Short and direct suction piping is recommended. For
suction lifts over 10' (3 m) and liquid temperatures over
120º F (49º C), consult pump performance curve for net
positive suction head required (NPSHR).
If a pipe size larger than pump suction is required, an eccentric pipe reducer, with the straight side up, MUST be
installed at the pump suction.
If pump is installed below the liquid source, install a full
flow isolation valve in the suction for pump inspection
and maintenance.
NOTICE: DO NOT USE THE ISOLATION VALVE TO
THROTTLE PUMP. THIS MAY CAUSE LOSS
OF PRIME, EXCESSIVE TEMPERATURES
AND DAMAGE TO PUMP, VOIDING
WARRANTY.
If the pump is installed above the liquid source, the following MUST be provided:
To avoid air pockets, no part of the piping should be
above the pump suction connection.
Slope piping upward from liquid source.
Use a foot valve or check valve ONLY if necessary for
priming or to hold prime during intermittent duty.
The suction strainer or suction bell MUST be at least
3 times the suction pipe diameter area.
Insure that the size and minimum submergence over
suction inlet is sufficient to prevent air from entering
through a suction vortex.
PIPING – DISCHARGE
Install a check valve suitable to handle the flow, liquids
and to prevent backflow. After the check valve, install an
appropriately sized gate valve to be used to regulate the
pump capacity, pump inspection and for maintenance.
When required, the pipe increaser should be installed
between the check valve and the pump discharge.
3
WARNING
Hazardous voltage
can shock, burn or
cause death.
Extreme heat can
cause personal injury
or property damage.
WARNING
WIRING AND GROUNDING
WARNING
Hazardous
voltage
Hazardous fluids can
cause personal injury
or property damage.
WARNING
WARNING
Hazardous
voltage
CAUTION
Use only stranded copper wire to motor and ground.
The ground wire MUST be at a least as large as the wire
to the motor. Wires should be color coded for ease of
maintenance.
NOTICE: UNIT ROTATION IS CLOCKWISE, WHEN
OPERATION
NOTICE: PUMP MUST BE FULLY PRIMED
MAINTENANCE
Motors have permanently lubricated bearings. No lubrication is possible or necessary. Follow the motor manufacturer’s recommendations for maintenance.
Install, ground and wire according to local and National
Electrical Code requirements.
Install an all leg disconnect
switch near the pump.
Disconnect and lockout electrical power before installing or
servicing pump.
Electrical supply MUST match pump’s nameplate
specifications. Incorrect voltage can cause fire,
damage to the motor and voids warranty.
Motors equipped with automatic thermal protection open the motor’s electrical circuit when a
thermal overload exists. This can cause the pump
to start unexpectedly and without warning.
FAILURE TO PERMANENTLY
GROUND THE PUMP, MOTOR AND
CONTROLS BEFORE CONNECTING
TO ELECTRICAL POWER CAN
CAUSE SHOCK, BURNS OR DEATH.
VIEWED FROM THE MOTOR END.
INCORRECT ROTATION MAY CAUSE
DAMAGE TO THE PUMP AND VOIDS THE
WARRANTY.
BEFORE OPERATION.
OPERATION AT OR NEAR ZERO
FLOW CAN CAUSE EXTREME HEAT,
PERSONAL INJURY OR PROPERTY
DAMAGE.
After stabilizing the system at normal
operating conditions, check the piping.
If necessary adjust the pipe supports.
DISASSEMBLY
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
SHOCK, BURNS OR DEATH.
CASING MAY CONTAIN
HAZARDOUS FLUIDS THAT CAN
CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.
Containing pumpage as required,
remove pump casing vent and drain
plugs (408). Remove and discard the
respective plug O-rings. Drain and flush
system, as required.
Remove the four motor bolts from the motor base or
foundation.
Remove the eight casing cap screws (370), then using the
slots provided about the casing (100), pry the back pullout assembly from the casing.
Remove and discard the casing O-ring (513) and the
internal casing O-ring (349).
NOTICE: IMPELLER COMPRESSES THE
MECHANICAL SEAL SPRING – BE
PREPARED FOR THE IMPELLER TO
SPRING FROM SHAFT WHEN IMPELLER
IS REMOVED.
Remove the end cap from the motor, exposing a slot in
the end of the motor shaft. While holding the shaft from
rotation with a screwdriver, remove the impeller locknut
(304) (if present) by turning it COUNTERCLOCKWISE.
Remove impeller (101) by turning counterclockwise
when looking at the front of the pump. Protect hand
with rag or glove. Apply localized heat for 1-2 minutes or
to an approximate temperature of 250º C. Disassemble
while hot. Heating will decrease the break-loose torque
of the Loctite 243 and allow for easy removal.
Excessive heating may cause damage to
the seal. Seal replacement is recommend-
ed if pump is disassembled or repaired.
Using two pry bars, 180º apart, CAREFULLY separate
the seal housing (184) from the motor adapter (108).
The mechanical seal (383) rotary assembly will slide from
the motor shaft with the seal housing.
CAREFULLY push out the mechanical seal stationary
seat from the seal housing. Inspect and wipe clean the
stationary seat bore. Replace as necessary. DISCARD the
mechanical seal assembly.
If necessary, remove the four motor hex bolts (371) and
CAREFULLY slide the motor adapter from the shaft.
Replace the motor assembly and deflector (123), as
required.
Disassembly is complete.
4
ASSEMBLY
WARNING
Hazardous
voltage
If removed, replace the motor shaft deflector. Install the
motor adapter, with the drain opening DOWN, using the
four hex bolts. Torque bolts to 168 lbs. in. (19 N m).
Slide the seal housing assembly onto the motor shaft,
seating it fully and squarely against the motor adapter.
Using a quality grade O-ring lubricant, lubricate the outer
elastomer of the mechanical seal stationary seat. Fully
and squarely install the stationary seat into the seal housing. With a clean, lint free cloth, CAREFULLY wipe the
seat face clean of a lubricant or debris. DO NOT damage
the seat face.
Using a quality grade O-ring lubricant, lubricate the
inner elastomer of the mechanical seal rotary assembly.
Fully and squarely install the rotary assembly against the
stationary seat.
To install impeller, clean shaft and impeller thoroughly
with denatured alcohol and a wire brush to remove cured
Loctite from threads. Wait for parts to dry then apply
Loctite 7649 primer to threads on shaft and impeller. Allow 3-5 minutes for primer to dry. Apply 3 drops of Loctite 243 medium strength thread-locker to shaft threads
and 2 drops on impeller threads. Tighten impeller to a
torque value of 144 lbs. in. (16 N m).
Using a quality grade O-ring lubricant, lubricate and install a new casing O-ring and internal O-ring (1SN only).
Slide the back pullout assembly into the pump casing
and secure using the eight casing cap screws. Torque the
cap screws to 70 lbs. in. (8 N m), using a cross pattern
sequence to assure the casing is pulled down evenly.
With new O-rings installed, install the casing vent and
drain plugs, tightening securely.
Assembly is complete.
TROUBLESHOOTING
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY MAINTENANCE CAN CAUSE SHOCK,
BURNS OR DEATH.
SYMPTOM
MOTOR NOT RUNNING
See Probable Causes 1 through 5
LITTLE OR NO LIQUID DELIVERED
See Probable Causes 6 through 13
EXCESSIVE POWER CONSUMPTION
See Probable Causes 3, 13, 14, 15 and 16
EXCESSIVE NOISE AND VIBRATION
See Probable Causes 3, 6, 7, 8, 10, 12, 14, 16 and 17
PROBABLE CAUSES
1. Motor thermal protector tripped
2. Open circuit breaker or blown fuse
3. Impeller binding
4. Motor improperly wired
5. Defective motor
6. Pump is not primed, air or gases in pumpage
7. Discharge, suction plugged or valve closed
8. Incorrect rotation (three phase only)
9. Low voltage or phase loss
10. Impeller worn or plugged
11. System head too high
12. NPSHA too low – Excessive suction lift or losses
13. Incorrect impeller diameter
14. Discharge head too low – excessive flow rate
15. Fluid viscosity, specific gravity too high
16. Worn bearing
17. Pump, motor or piping loose
5
REPAIR PARTS
Item
Description
No. Construction
100 Casing
101 Impeller
Materials of
AISI 316L SS 1
Qty.
Motor adapter
108A with foot
108B without foot AISI 316L SS 1
108C withfootandush
108D withoutfootandush
123 Deector BUNA-N 1
184A Seal housing – standard
184B Sealhousingwithsealush
Motor support 300 SS 1
240
Rubberchannel Rubber 1
AISI 316L SS 1
304 Impellerlocknut AISI316SS 1
Viton (standard)
349 O-ring,internal(1SNonly) EPR 1
BUNA
370 Socketheadscrew,casing AISI430SS 8
371 Bolts,motor Steel/plated 4
383 Mechanicalseal SeeMechanicalSealChart 1
408 Drainandventplug,casing AISI316SS 2
Viton (standard)
412B O-ring,drainplugs EPR 2
BUNA
Viton (standard)
513 O-ring,casing EPR 1
BUNA
Pump Size
Impeller
1SN 1 x 1¼ – 6 2SN 1¼ x 1½ – 6 3SN 1½ x 2 – 6
Code
Diameter Diameter Diameter
A 45⁄16 55⁄16 57⁄
B 4 51⁄16 5¼
C 3¾ 45⁄8 415⁄
D 3½ 45⁄16 45⁄
E 3¼ 41⁄16 47⁄
F 3 3¾ 43⁄
G 53⁄8 37⁄16 3¾
H 5 – –
John Crane Type 21 Mechanical Seal (5⁄8" Seal)
Seal Code Rotary Stationary Elastomer Metal Parts
2
4
5 Sil-Carb. EPR
EPR
Carbon
Sil. Carb.
Viton
6 Viton
16
16
8
16
16
316SS
6
COMMERCIAL WARRANTY
For goods sold to commercial buyers, Seller warrants the goods sold to Buyer hereunder (with the exception of membranes, seals, gaskets,
elastomer materials, coatings and other “wear parts” or consumables all of which are not warranted except as otherwise provided in the quotation or
sales form) will be (i) be built in accordance with the specications referred to in the quotation or sales form, if such specications are expressly made
a part of this Agreement, and (ii) free from defects in material and workmanship for a period of one (1) year from the date of installation or eighteen
(18) months from the date of shipment (which date of shipment shall not be greater than thirty (30) days after receipt of notice that the goods are
ready to ship), whichever shall occur rst, unless a longer period is specied in the product documentation (the “Warranty”).
Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any product which fails to conform
with the Warranty provided Buyer gives written notice to Seller of any defects in material or workmanship within ten (10) days of the date when any
defects or non-conformance are rst manifest. Under either repair or replacement option, Seller shall not be obligated to remove or pay for the
removal of the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be responsible for all other
costs, including, but not limited to, service costs, shipping fees and expenses. Seller shall have sole discretion as to the method or means of repair
or replacement. Buyer’s failure to comply with Seller’s repair or replacement directions shall terminate Seller’s obligations under this Warranty and
render the Warranty void. Any parts repaired or replaced under the Warranty are warranted only for the balance of the warranty period on the parts
that were repaired or replaced. Seller shall have no warranty obligations to Buyer with respect to any product or parts of a product that have been:
(a) repaired by third parties other than Seller or without Seller’s written approval; (b) subject to misuse, misapplication, neglect, alteration, accident,
or physical damage; (c) used in a manner contrary to Seller’s instructions for installation, operation and maintenance; (d) damaged from ordinary
wear and tear, corrosion, or chemical attack; (e) damaged due to abnormal conditions, vibration, failure to properly prime, or operation without ow;
(f) damaged due to a defective power supply or improper electrical protection; or (g) damaged resulting from the use of accessory equipment not
sold or approved by Seller. In any case of products not manufactured by Seller, there is no warranty from Seller; however, Seller will extend to Buyer
any warranty received from Seller’s supplier of such products.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER EXPRESS OR IMPLIED WARRANTIES, GUARANTEES,
CONDITIONS OR TERMS OF WHATEVER NATURE RELATING TO THE GOODS PROVIDED HEREUNDER, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY EXPRESSLY DISCLAIMED AND
EXCLUDED. EXCEPT AS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY AND SELLER’S AGGREGATE LIABILITY FOR BREACH OF
ANY OF THE FOREGOING WARRANTIES ARE LIMITED TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED
TO THE AMOUNT PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY OTHER FORM OF
DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES,
INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS OF ANTICIPATED SAVINGS OR REVENUE, LOSS OF INCOME, LOSS OF BUSINESS, LOSS
OF PRODUCTION, LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.
Xylem Inc.
2881 East Bayard Street Ext., Suite A
Seneca Falls, NY 13148
Phone: (800) 453-6777
Fax: (888) 322-5877
www.gouldswatertechnology.com
Goulds is a registered trademark of Goulds Pumps, Inc. and is used under license.
© 2015 Xylem Inc. IM012 Revision Number 6 July 2015
7
MANUAL DE INSTRUCCIÓN
IM012R06
Modelo NPO
INSTRUCCIONES DE INSTALACIÓN, FUNCIONAMIENTO Y MANTENIMIENTO
8
Loading...