Maintenance; Discharge Piping; Wiring And Grounding; Rotation - Goulds Pumps SFH Instrucciones De Instalación, Operación Y Mantenimiento

4. Installation with pump below source of supply:
4.1. Install isolation valve in piping for inspection and

maintenance.

4.2. Do not use suction isolation valve to throttle pump!
5. Installation with pump above source of supply:
5.1. To avoid air pockets, no part of piping should be
higher than pump suction connection. Slope
piping upwards from liquid source.
5.2. All joints must be airtight.
5.3. Foot valve to be used only if necessary for priming,
or to hold prime on intermittent service.
5.4. Suction strainer open area must be at least triple
the pipe area.
6. Size of inlet from liquid source, and minimum submer-
gence over inlet, must be sufficient to prevent air
entering pump.

DISCHARGE PIPING

1. Arrangement must include a check valve located
between a gate valve and the pump. The gate valve is
for regulation of capacity, or inspection of pump or
check valve.
2. If reducer is required, place between check valve and pump.

5. Wiring and Grounding

Install, ground and wire according to
WARNING
local and National Electrical Code
Requirements.
Install an all leg electrical power
disconnect switch near the pump.
Disconnect and lockout electrical
power before installing or servicing
Hazardous voltage
the pump.
can shock, burn or
cause death.
Electrical supply MUST match pump's nameplate
specifications. Incorrect voltage can cause fire, damage
motor and void the warranty.
Motors without built-in protection MUST be provided
with contactors and thermal overloads for single phase
motors, or starters with heaters for three phase motors.
See motor nameplate.
• Use only copper wire to motor and ground. The ground
wire MUST be at least as large as the wire to the motor.
Wires should be color coded for ease of maintenance.
• Follow motor manufacturer's wiring diagram on the motor
nameplate or terminal cover carefully.
FAILURE TO PERMANENTLY
WARNING
GROUND THE PUMP, MOTOR AND
Hazardous
CONTROLS BEFORE CONNECTING
voltage
TO ELECTRICAL POWER CAN
CAUSE SHOCK, BURNS OR DEATH.

6. Rotation

DO NOT PLACE HANDS IN PUMP
WARNING
WHILE CHECKING MOTOR
ROTATION. TO DO SO WILL CAUSE
SEVERE PERSONAL INJURY.
Hazardous Machinery
1. Pumps are right-hand rotation (Clockwise when viewed
from the driver end). Switch power on and off. Observe
shaft rotation.
4
2. Single-Phase: Refer to wiring diagram on motor if
rotation must be changed.
3. Three-Phase: Interchange any two power supply leads
to change rotation.

7. Operation

1. Before starting, pump must be primed (free of air and
suction pipe full of liquid) and discharge valve partially
open.
PUMPED LIQUID PROVIDES
CAUTION
LUBRICATION. IF PUMP IS RUN
DRY, ROTATING PARTS WILL SEIZE
AND MECHANICAL SEAL WILL BE
DAMAGED.
2. Make complete check after unit is run under operating
conditions and temperature has stabilized. Check for
expansion of piping. Check coupling alignment.
3. 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. Maintenance
FAILURE TO DISCONNECT AND
WARNING
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
SHOCK, BURNS OR DEATH.
Hazardous voltage
can shock, burn or
cause death.
FAILURE TO RELIEVE SYSTEM
CAUTION
PRESSURE AND DRAIN SYSTEM
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
Hazardous pressure
can cause personal
injury or property
damage.
IF PIPING HAZARDOUS OR TOXIC
WARNING
FLUIDS, SYSTEM MUST BE FLUSHED
PRIOR TO PERFORMING SERVICE.
Hazardous fluids can
cause personal injury
or property damage.
1. Bearings are located in and are part of the motor. For
lubrication procedure, refer to manufacturer's instructions.

FRAME-MOUNTED UNITS

• Model SFH S-group has greased for life bearings.
No regreasing is possible or necessary.
• Model SFH M-group bearing frame should be regreased
every 2,000 hours or at a three month interval, whichever
occurs first. Use a #2 lithium based grease. Fill until grease
comes out of relief fittings, or lip seals, then wipe off excess.
• Follow motor or engine and coupling manufacturer's
lubrication instructions.
• Recheck alignment.