CAVATATION AND HIGH SUCTION ENERGY LEVEL PUMPS C021-1

CAVATATION AND HIGH SUCTION ENERGY LEVEL PUMPS C021-1 

High suction energy level pumps include:

  • The outside diameter of the impeller eye is rotating faster than 120 feet/second or 37 meters/sec
  • The higher the specific gravity of the fluid being pumped, the higher the energy
  • Thermodynamic properties of the liquid being pumped. Cold water is one of the highest energy liquids, followed by high temperature water and hydrocarbons
  • The suction specific speed number of the pump is 12,000 (7500 metric) or greater.
  • Operating off the BEP. When throttled, the pump might operate in its suction recirculation mode, heating the incoming liquid.
  • The geometry of the pump inlet piping. Upside-down reducers, 90В° elbows, length of the suction piping, along with strainers, valves and fittings in the suction piping can cause problems.
  • Side suction designs are considered higher energy than end suction designs.
  • Impellers with two or three vanes have more energy than those with four of more.

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  • On February 15, 2018