Flowserve Circulator - Manual (Page 3)

3
Do not, under any circumstances, use the circulator to
flush the interconnecting piping/tubing. Using the cir-
culator to flush the interconnecting piping/tubing will
void the warranty. The circulator is flushed clean and
sealed at the factory.
2.4.7 Connections to circulator: A teflon paste pipe
sealant is recommended and should be applied
no closer than two threads from the end of the
fitting to avoid contamination.
2.4.7.1 Do not remove plugs from ports until
you are ready to make a final connec-
tion.
2.4.7.2 Refer to the circulator drawings in
Section B for connections to be made.
3 Start-up Operation
3.1 Initial start-up
3.1.1 Check all field connections in piping/tubing to
see that the joints are tight. Also check and
tighten circulator fasteners, which may have
become loose during transit.
3.1.2 Verify the correct barrier fluid type with the seal
manufacturer before filling. Fill the reservoir to
the top of the level gauge through the filler port
provided.
3.1.3 The pump/motor assembly does not require
alignment.
3.1.4 Before connecting the motor power source.
Disengage the pump/motor coupling. Connect
the motor power source. Jog the motor (3-5
seconds) to check rotation against the rotation
arrows. Reconnect the pump/motor coupling.
Replace the coupling guard cover plate.
3.2 All instruments must be tied into the customer’s
control panel to operate the main process equip-
ment. Functions listed on the circulator drawings
are the minimum requirements necessary to insure
proper operation. The manufacturer may place more
stringent requirements on sequencing of the main
process equipment. It is recommended the customer
contact the seal manufacturer to obtain a list of all
operational sequences and interlocks to insure safe
and efficient operation.
It is the customer’s responsibility to familiarize them-
selves with the instrumentation and controls mounted
on the circulator. The customer’s supplied control
panel shall at minimum provide the functions listed
and as described on the circulator drawings.
3.3 This circulator is equipped with a Pressure Relief
Valve (PRV-1) and a Pressure Control Valve (PCV-1).
The pressure relief valve on the right end of the mani-
fold is factory set at and should never be adjusted.
The pressure contol valve on the left end of the mani-
fold is factory set and will need adjustment to meet the
requirements of the application. The pressure control
valve can be adjusted using the following procedure
and referring to the manufacturers service manual in
Appendix 2 of this manual.
3.4 Pressure control valve adjustment
The pressure control valve located on the left end of the
manifold is factory set at 200 psig (1379 kPa) and will need
adjustment to meet the requirements of the application.
Follow these steps to adjust the pressure control valve.
3.4.1 The fluid temperature in the circulator must be
at the normal operating temperature to achieve
the correct pressure setting.
3.4.2 To prevent accidental over pressurization of the
seal, connect the seal supply port directly to
the seal return port, bypassing the seal. This
will protect the seal from high pressures during
valve adjustment.
3.4.3 Completely open the pressure control valve
on the left end of the manifold.
3.4.4 Start the circulator and allow to run long
enough to remove any air from the system. All
fluid flow should be through the pressure con-
trol valve, through the heat exchanger and
back into the reservoir.
3.4.5 Slowly close the pressure control valve on
the left end of the manifold until the desired
system pressure is achieved.
3.4.6 Shut down the circulator and return any piping
to its original, normal operating configuration.
The pressure control valve is now set to the
proper pressure.