Yale Hand Pumps HPS/HPH for Single- and Double-Acting Cylinders

Yale Hand Pumps HPS / HPH

Hand pumps are easy to use and operate independently of any external energy source. They are designed for a maximum 700 bar system pressure and will allow each Yale hydraulic cylinder to utilise its maximum capacity.

The two-stage system reduces pumping time. Stage 1 allows rapid piston travel under no load or light load conditions. The pump automatically switches to stage 2 when the piston is loaded and a higher force is required. The hand pump is an all-steel construction designed for rough use and has a high-efficiency pumping action. The handle can be locked for easy carrying.

The large and easy-to-control return valve allows the operator to precisely control the return stroke. Other standard features include a large and easy-to-control hand wheel, air bleeding and oil filling plug, large support feet for stability, tilted tank to increase usable oil volume and ergonomic handle grip.

Model HPS is designed for single-acting cylinders. Model HPH is designed for double-acting cylinders: it corresponds to the HPS series but is equipped with a 4-way directional control valve; the fine-adjustable relief valve (hand wheel) remains and permits sensitive pressure relief.

User Manual

FEATURES

• Operating pressure max. 700 bar.
• Two-stage operation with automatic switch-over (except HPS-1/0.7 A).
• Large reservoir volumes.
• With pressure relief valves, adjustable from the outside.
• Precision-adjustable relief valve (hand wheel).
• Robust all-steel construction.
• HPH pumps are equipped with a 4-way control valve plus a precision-adjustable relief valve.
• Oil port thread 3/8 NPT.
• Supplied ready to use, incl. oil filling.
• Pressure gauges with corresponding adaptors are also available as accessories.
• Hydraulic hoses are to be selected separately.

SPECIFICATIONS