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Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
To monitor flow, pressure, temperature, and lubrication, regular visual inspection and monitoring is advisable
and/or necessary during operation.
Ruhrpumpen recommends checking the pump constantly at regular intervals in order to detect problems early,
in case they arise.
The operational check routine must include minimum the following points:
• Beware of freely rotating parts, when the pump is in operation there is a high
risk of injury.
• Check at regular intervals that the safety equipment is sound and is arranged and fastened according to
the regulations, and energized where applicable.
• Check the security of all bolting, piping, and wiring.
• Check all gauges, valves and instruments for proper working order
• Check all equipment for proper lubrication and correct rotation.
• Check the oil level and validate that the correct oil grade is installed.
• Check that the pumping unit is running quietly and without vibrating.
• Unusual or too loud noises point towards a possible fault.
• Monitor the power consumption of the drive motor. Low or excessive power consumption indicates a
possible fault.
• Check the sealing system:
a. Refer to the seal manufacturer for his estimate of maximum acceptable leakage rate, as this will
depend on application, design, location and the sealed liquid characteristics
b. If leakage excessive, switch the pump off as quickly as possible, isolate the pump by closing the
discharge and suction valves or using some other approved method designated as safe for your
system, and check the rotating seal ring and the stationary seal ring.
• If the sealing system of the mechanical seal fails, the pump must be taken out of
operation immediately.
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