SPP id: Version 14 > / 120601 / Replaces 110901 / en /
N31572
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Series
2.15
INSTRUCTIONS
June 2012
Page
ISO
G
COPYRIGHT © SULZER PUMPS FINLAND OY
ORIGINAL INSTRUCTION
USER'S MANUAL – AHLSTAR
Operation
Control the temperature of the gland packing and maintain the leakage at 30 - 80 drops/minute by adjusting the
stuffing box gland.
The flow and pressure of sealing water must be kept at the enclosed values given by the seal manufacturer.
When the seal pot sealing water equipment is operating, check that the sealing fluid is flowing in the correct direction
– the return hose must be warm.
Check the temperature and vibration of bearings through regular measuring. If one or the other increases, it may be
a sign of incorrect lubrication or bearing damage. The measuring studs (SPM, M8 x 24) are in the bearing housing
for controlling the bearings.
Also, any noises from the pump and its vibration have to be controlled and the reasons for unusual noises or
vibration detected.
The condition of the coupling can be monitored with a stroboscope through the perforation in the coupling guard.
4 Shut-down
procedure
•
Close the discharge valve to prevent the pumped liquid from flowing back.
•
Close the degassing valve between the pump equipped with a gas separator (-GM, -GS) or air separating
pumps (-R) and the potential degassing pump.
•
Stop the motor.
•
Stop the motor of a potential degassing pump.
•
Close the suction valve if there is reason to doubt that the pumped liquid will flow out of the suction piping.
•
Close the cooling and flushing liquid valves, if any.
•
If the pump has a sealing liquid valve, it cannot be closed until the pump has been drained or until at least
the pressure has been relieved from the pump.
During longer shut-downs, the pump must be checked every now and then. Turn the shaft manually a few times. If
the pumped liquid congeals or solidifies easily, if it is corrosive, or if the pump is exposed to freezing, drain the pump
and suction piping for the shut-down period. At the same time, flush the pump with clean water.
5 Controls after the first run
N O T E
The correct final alignment of the coupling is important for the pump operation.
When the pump unit has run for a sufficient length of time to bring the pump and motor up to the normal operating
temperature, check the coupling alignment according to Section ”Installation and alignment of coupling”.
With hot liquid pumps, check the tightness of the casing cover fixing screws. Adjust torque in accordance with the
reference values.
With pumps equipped with gland packing, check proper leakage from the stuffing box.
With pumps equipped with mechanical seals, ensure that the flushing or cooling supplies are functioning adequately.
Make sure that the sealing water system is working properly.
Check that there is no overheating in the pump or motor bearings.