Dover WILDEN BioPharm T2/SPPN/TF/TF/STF-903 Mühendislik, İşletme ve Bakım - Sayfa 9
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SUGGESTED INSTALLATION
NOTE: In the event of a power failure, the
AIR OPERATED PUMPS: To stop the pump from operating 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 pump-
ing equipment such that it can be reached safely in an emergency situation.
SECTION 7B
SUGGESTED OPERATION AND
MAINTENANCE INSTRUCTIONS
OPERATION: Pump discharge rate can be controlled by limit-
ing 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. 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 T2 pump runs solely on compressed air and does not
generate heat, therefore your process fluid temperature will
not be affected.
shut off
valve should be closed, if the restarting of the pump is not desirable once power is regained.
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.
MAINTENANCE AND INSPECTIONS: Since each application
is unique, maintenance schedules may be different for every
pump. Frequency of use, line pressure, viscosity and abrasive-
ness 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.
7
WILDEN PUMP & ENGINEERING, LLC