All-Flo T038-NHT-PTTT-000 3/8 PTFE - Manual (Page 8)

8 I All-Flo Pump Co.
Installation, Troubleshooting and Maintenance
Installation
Piping
Whenever possible ensure the pump is installed using the shortest possible pipe lengths with the minimum
amount of pipe fittings. Ensure all piping is supported independent of the pump.
Suction and discharge piping should not be smaller than the connection size of the pump. When pumping
liquids of high viscosity, larger piping may be used, in order to reduce frictional pipe loss.
Employ flexible hoses in order to eliminate the vibration caused by the pump. Mounting feet can also be
used to reduce vibration effects.
All hoses should be reinforced, non-collapsible and be capable of high vacuum service. Ensure that all
piping and hoses are chemically compatible with the process and cleaning fluid.
For processes where pulsation effects should be reduced, employ a pulsation dampener on the discharge
side of the pump.
For self-priming applications, ensure all connections are airtight and the application is within the pumps
dry-lift capability. Refer to product specifications for further details.
For flooded suction applications, install a gate valve on the suction piping in order to facilitate service. For
unattended flooded suction operation, it is recommended to pipe the exhaust air above the liquid source. In
the event of a diaphragm failure this will reduce or eliminate the possibility of liquid discharging through
the exhaust onto the ground.
Location
Ensure that the pump is installed in an accessible location, in order to facilitate future service and
maintenance.
Air
Ensure that the air supply is sufficient for the volume of air required by the pump. Refer to product
specifications for further details. For reliable operation, install a 5 micron air filter, air-valve and
pressure regulator. Do not exceed the pumps maximum operating pressure of 120 psig.
Remote Operation
Utilize a three way solenoid valve for remote operation. This ensures that air between the solenoid
and the pump is allowed to “bleed off,” ensuring reliable operation. Liquid transfer volume is estimated
by multiplying displacement per stroke times the number of strokes per minute
Noise
Correct installation of the muffler reduces sound levels. Refer to product specifications for further details.
Submerged Operation
For submersible operation, pipe the air exhaust to atmosphere