Dover Wilden Advanced Series Інжиніринг, експлуатація та технічне обслуговування - Сторінка 8
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S e c t i o n 4
S U G G E S T E D I N S T A L L A T I O N
S U G G E S T E D O P E R A T I O N & M A I N T E N A N C E
OPERATION: The H38/3200D is pre-lubricated and does not
require in-line lubrication. Additional lubrication will not dam-
age the pump, however if the pump is heavily lubricated by an
external source, the pump operation may be affected. 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 vol-
ume and/or pressure of the air supply to the pump (preferred
method). A regulator is used to control air pressure while a
needle valve is used to control 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 approximately 26 times the air
inlet 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 increas-
ing the air inlet pressure. The H38/3200D pump runs solely
on compressed air and generates little heat, therefore your
process fluid temperature will not be affected.
WILDEN PUMP & ENGINEERING, LLC
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.
6
WIL-11181-E-04