WIL-12350-E-02 7 WILDEN PUMP & ENGINEERING, LLC
SUGGESTED INSTALLATION
OPERATION: The H1500 Saniflo™ HS pumps are pre-lubricated
and do not require in-line lubrication. Additional lubrication will
not damage the pump, however if the pump is heavily lubricated
by an external source, the pump’s internal lubrication may be
washed away. If the pump is then moved to a non-lubricated
location, it may need to be disassembled and re-lubricated as
described in the ASSEMBLY/DISASSEMBLY INSTRUCTIONS.
Pump discharge rate can be controlled by limiting the volume
and/or pressure of the air supply to the pump. An air regulator is
used to regulate air pressure. A needle valve is used to regulate
volume. Pump discharge rate can also be controlled by throttling
the pump discharge by partially closing a valve in the discharge
line of the pump. This action increases friction loss which reduces
flow rate. (See Section 5.) This is useful when the need exists
to control the pump from a remote location. When the pump
discharge pressure equals or exceeds the air supply pressure, the
pump will stop; no bypass or pressure relief valve is needed, and
pump damage will not occur. The pump has reached a “deadhead”
situation and can be restarted by reducing the fluid discharge
pressure or increasing the air inlet pressure. The Wilden® H1500
pumps run solely on compressed air and do not generate heat,
therefore your process fluid temperature will not be affected.
MAINTENANCE AND INSPECTIONS: Since each application is
unique, maintenance schedules may be different for every pump.
Frequency of use, line pressure, viscosity and abrasiveness of
process fluid all affect the parts life of a Wilden® pump. Periodic
inspections have been found to offer the best means for prevent-
ing unscheduled pump downtime. Personnel familiar with the
pump’s construction and service should be informed of any abnor-
malities that are detected during operation.
RECORDS: When service is required, a record should be made of
all necessary repairs and replacements. Over a period of time, such
records can become a valuable tool for predicting and preventing
future maintenance problems and unscheduled downtime. In
addition, accurate records make it possible to identify pumps that
are poorly suited to their applications.
SUGGESTED OPERATION & MAINTENANCE
AIR-OPERATED PUMPS: To stop the pump from operating in an emergency situation, simply close the air
shut-off valve (user supplied) installed in the air supply line. A properly functioning valve will stop the
air supply to the pump, therefore stopping output. This air shut-off valve should be located far enough
away from the pumping equipment such that it can be reached safely in an emergency situation.
NOTE: In the event of a power failure, the air shut-off valve should be closed, if restarting of the pump
is not desirable once power is regained.
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