Dover Wilden Original A8, Инженерия, эксплуатация и обслуживание

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WILDEN PUMP & ENGINEERING, LLC WIL-10270-E-02
SUGGESTED INSTALLATION
SECTION 7B – AIR OPERATION
SUGGESTED OPERATION AND
MAINTENANCE INSTRUCTIONS
OPERATION: The T8 is not pre-lubricated, and may require
in-line lubrication. Pump discharge rate can be controlled
by limiting the volume and/or pressure of the air supply to
the pump (preferred method). 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 “dead-
head” situation and can be restarted by reducing the fluid
discharge pressure or increasing the air inlet pressure. The
Wilden T8 pump runs solely on compressed air and does
not generate heat, therefore your process fluid temperature
will not be affected. MAINTENANCE AND INSPECTIONS: Since each applica-
tion 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 preventing unscheduled pump
downtime. Personnel familiar with the pump’s construction
and service should be informed of any abnormalities 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.
AIR OPERATED PUMPS: To stop the pump from oper-
ating in an emergency situation, simply close the “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 shut off valve
should be located far enough away from the pumping
equipment such that it can be reached safely in an
emergency situation.
ACCU-FLO™ PUMPS: Accu-Flo™ pumps function with
solenoid valves and require an electrical control circuit
to supply pulses. Under normal operating conditions,
the control circuit is sufficient for starting and stopping
the pump. However, the shut off valve (user supplied)
installed in the air supply line can be used to stop the
pump if necessary. Therefore, it 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 shut off valve should be closed, if the
restarting of the pump is not desirable once power is regained.
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