5 BASIC RULES OF PUMP PIPING (Barnes, Berkeley & Ingersoll Rand)

Many goulds pumps fitted with pipes inappropriate settings, so that premature goulds pump failure as we covered in our latest e-book, 36 Ways to Kill Your goulds Pump. If you are installing the pump in the new system, where you will turn to the guidelines pipeline pump setting appropriate?

Knowledge and resources are minimal on this topic. 

By following the 5 simple rules, you can avoid premature barnes pump failure and associated pipeline pump trap.

KEEP SUCTION PIPE shortest possible

Include a straight run of pipe length equal to 5 to 10 times the diameter of the pipe between the barnes pump inlet and obstacles in the suction line. Note: Barriers include apollo valves, elbows, “tee,” etc.

Keeping the suction pipe short, Ensuring that a decrease in the inlet pressure is as low as possible. Pipes run directly provide a uniform speed across the diameter of the pipe at the pump inlet. Both are essential to achieve optimal suction.

Pump Cavitation

DIAMETER PIPE ON SUCTION SIDE TO BE EQUAL OR GREATER THAN ONE SIZE PUMP INLET

speed suction pipe should be limited to 7 to 8 feet per second or less.

REMOVING ELBOW MOUNTED NOZZLE OR CLOSE TO THE INLET OF THE Goulds PUMP

Include 5-10 pipe diameters of straight pipe run between the pump inlet and the elbow. This helps to eliminate the “side loading” of the goulds pump impeller and pump, creating a uniform bearing axial load.

REMOVING THE POTENTIAL FOR AIR entrapment in the SUCTION PIPE

Maintaining an adequate level in the supply tank to eliminate the vortices of formation and air entrapment.

Avoid high pockets in the suction pipe, which can trap air

Keep all tube and fitting tight connections in a vacuum suction to prevent air from getting into the barnes pump.

ENSURE PIPES STRAIN ON ARRANGEMENTS NOT CAUSE THE GOULDS PUMP CASING

The goulds pump must never support the suction or discharge pipe. Stress in the pump casing by the piping system significantly reduces pump life and performance.

Keep in mind that the increase in berkeley pump performance will help to make up the pipe mistakes made on the discharge side of the pump. 

When there is a problem linked with the suction, this can lead to recurring failure, which can even occur after several years, if not handled properly. 

Piping design is an area in which the basic principles that are often overlooked, leading to raised vibration & premature failure related to the seals & bearings. Piping that one has long been ignored as a reason for this failure is due to many other reasons this equipment can fail. Many experienced engineers may argue that the berkeley pump function is still the wrong pipe and operating correctly. These arguments, although valid, did not make a practice of questionable pipes accurately.

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