A Hydraulic Booster works by converting hydraulic power from a lower pressure input to a higher pressure output with lower volume (flow). The booster is threaded onto the top shaft of the hydraulic actuator, and pressure is applied to move the valve to the open position. Short body and shaft permit operation in tight clearance applications. They automatically intensify system pressure giving a higher outlet pressure and will compensate for oil loss on the high pressure side. Hydraulic Booster is very effective.