Products > Accessories > ECV

External Compensation Valve (ECV)

External Compensation for Sparrow (Husky-Style) Pumps

The HydraBlast ECV works in tandem with the lubrication system on a Sparrow pump. It regulates the discharge pressure to a set point. The ECV is the safest and most advanced option in water blasting to control pressure on a job site. Be sure to reach out if you’d like to learn more.


  • Requires no balancing of guns to achieve target pressure
  • Can run multiple tools simultaneously
  • Most effective way to regulate pressure
  • Allows for compensation of orifice wear


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