The ATI Hydraulic Hand Pump provides an efficient back-up system for opening and closing valves when power gas for pneumatic actuators or power hydraulic fluid for hydraulic actuators is not available. Utilizing a balanced piston design eliminates the possibility of cavitation or creating a vacuum because the pressure on either side of the piston is always equal and both cavities are always full of oil. The high flow capacity provides easy and efficient manual opening and closing of even the largest valves.
Typically hand pumps on pneumatic actuators will have a self-contained reservoir while hand pumps on hydraulic actuators will share the same reservoir as the power unit.
The Hydraulic Hand Pump includes an automatic reset function on the open/close selectors to prevent inadvertent movement of the pump handle when power gas or power hydraulic fluid is re-introduced. This feature automatically resets the pump to the neutral position when gas pressure or hydraulic pressure is detected.
A pressure relief button is provided to relieve any internal pressure after pumping is complete. This allows the pump ram to be retracted into the pump, out of any hostile atmosphere.
- Constructed of marine-grade, hard-anodized aluminum, with all stainless steel, pins, and bolts.
- Available in 4 in3 and 12 in3 displacement/stroke
- Protective rubber boots cover exposed buttons for atmospheric protection