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15
PI Operation Manual
These units are furnished for a specific service condition. Any change in the hydraulic system
may affect the pump performance adversely.
The connection of the piping must be carried out with utmost care; otherwise, the pumping
medium can escape during operation, which can seriously endanger the operating personnel.
In a new installation, great care should be taken to prevent dirt, scale, welding beads, and other
items from entering the pump. The suction system should be thoroughly flushed before installing the
suction strainer and suction piping.
Suction and discharge piping should be of ample size, be installed in direct runs with
minimum bends.
Short radius elbows shall be avoided near the suction nozzle. If an elbow is necessary,
it should be of the long radius type.
Suction and discharge piping configurations should be in accordance with the
Hydraulic Institute Standards.
Suction and discharge piping, fittings, and valves must be adequately supported
and anchored close to the pump flanges to eliminate strains imposed on the pump casing, prevent
excessive nozzle loads, maintain pump/driver alignment, and avoid pipe-induced vibration.
4.1 PIPING THE SYSTEM
1. Check whether the piping is loosely laid, so that no strain is placed on the pump.
Piping layout and installation shall provide adequate maintenance and operation accessibility.
Field installed auxiliary equipment shall not interfere with removal of the machine or driver.
4. SECTION FOUR - PIPING
