Why High-Speed Single Seals Often Fail in Seawater Injection Pumps

A technical documentation by the Flowserve fall department analyzes single fall case (Arrangement 1) short-term work in high-speed sea water pump, and draws remarkable lessons.

Harsh working conditions.

Water pressure pumps are usually high-pressure, high-speed tank pumps. Large perimeter speed creates significant centrifugal force and rapid flow around the debris, making the debris subject to heavy conditions.

The main discoveries.

• It has a short life and heavy wear.
• The pressure of the falling chamber must beined high enough, usually thanks to the pressure pump on the suction side, to prevent the falling surface from drying.
• At the start, if the pressure is not sufficient, the crumbling side may be affected by the same effect as running dry.

Direction to Repair.

Check the start-up process and the suction pressure, choose the high-speed suitable folding technology instead of the usual flat surface, and maintain stable folding chamber conditions.

What should be noted.

This is an analysis from a specific technical documentation, the actual results vary with each pump.

Source of reference.

Flowserve's technical documentation on Arrangement 1 in water pressing services. Article compiled and reinterpreted by SNS-VN; brand name belongs to the owner.