Flowserve CPXPM - Manual (Page 15)

CPXPM USER INSTRUCTIONS ENGLISH 71569160 09-09
Page 15 of 28 flowserve.com
5.3 Direction of rotation
Briefly run or jog the motor and observe
the direction of rotation of the coupling or motor fan.
Ensure the pump is given the same direction of rotation
as the pump direction arrow on the bracket.
If maintenance work has been carried
out to the site's electricity supply, the direction of
rotation should be re-checked as above in case the
supply phasing has been altered.
5.4 Guarding
Guarding is supplied fitted to the pump set. If
this has been removed or disturbed ensure that all the
protective guards are securely refitted.
5.5 Priming and auxiliary supplies
5.5.1 Filling and priming
Fill the pump with liquid to be pumped,
or compatible liquid, via the filling plug, before starting
continuous duty operation.
Pump housing
filling hole.
When the initial fill
reaches the suction
pipe, excess liquid will
flow out of the casing.
Pump size
Initial fill
litre (US gal.)
40-40CPXPM125 2.5 (0.65)
80-80CPXPM125 6.0 (1.50)
40-40CPXPM160 3.0 (0.80)
80-80CPXPM160 6.5 (1.75)
40-40CPXPM200 5.0 (1.35)
65-65CPXPM200 8.5 (2.25)
80-80CPXPM250 12.0 (3.20)
The pump has self priming action for which a
separate air pump or foot valve or non-return valve is
not normally required.
5.5.2 Auxiliary supplies
Ensure all electrical, hydraulic,
pneumatic, sealant and lubrication systems (as
applicable) are connected and operational.
5.6 Starting the pump
a) Ensure flushing and or cooling/
heating liquid supplies are turned ON, before
starting pump.
b) Partially close the outlet valve.
c) OPEN all inlet valves.
d) Prime the pump. (See section
5.5.1.) The pump casing must initially be filled
with compatible liquid before starting the unit.
e) Damage will occur if the pump is run dry or for
prolonged periods with no incoming liquid.
f) Subsequent filling should not be necessary unless
the pump has been emptied or drained of fluid.
g) Start the motor and, if no specific provision has
been made in the delivery pipework for evacuating
the primed air, open the delivery valve by
approximately 10% to allow priming air to escape.
h) Check outlet pressure.
i)
If the pressure is satisfactory, slowly OPEN the
outlet valve until at the duty flow.
j) It is recommended that the priming time is noted.
Priming times in excess of 5 minutes will indicate
a pump or system fault. Any noticeable
increases in priming time on subsequent starts
will also indicate a fault. Irregular use could lead
to the danger of 'evaporation' of the priming fluid.
k) Do not run the pump with the outlet
valve closed for a period longer than 30 seconds.
l) If the pump has to self prime the system it may
take a short time before the outlet is pressurized.
m) If NO pressure, or LOW pressure, STOP the
pump. Refer to section 7, Faults; causes and
remedies for fault diagnosis.
5.7 Running the pump
5.7.1 Pumps fitted with mechanical seal
Mechanical seals require no adjustment. Any slight
initial leakage will stop when the seal is run in.
Before pumping dirty liquids it is advisable, if possible, to
run the pump in using clean liquid to safeguard the seal
face.
External flush or quench should be
started before the pump is run and allowed to flow for a
period after the pump has stopped.