Trade.Information

Product Name: Electrical Motor or Gasoline Engine Driven Pump Units

Product Description

TYPICAL APPLICATIONS Raising a single acting hydraulic jacking cylinder Operating a spring returned cylinder on a hydraulic shop press or forcing press. OPERATION The operator closes the globe valve and pushes the jog button. For those units with a low pressure pump, a rapid cylinder speed will result initially due to the combined delivery of both pumps. At 1000 psi, the 1000 psi unloading valve will unload or "dump" the low pressure pump. The high pressure pump will continue to move the cylinder until the pressure reaches the adjustable setting of the high pressure relief valve. When the operator releases the jog button, the check valve will hold the cylinder in position. To retract the cylinder, the operator opens the globe valve. The globe valve can be used to "meter" flow and control the rate of piston return.