With 4-way valve and relief valve (hand wheel)
All hand pumps of type HPH are designed as doubleacting cylinders. Basically, they do not differ from series HPS, but are equipped with a 4/3-way directional valve.
The precision-adjustable relief valve remains unaffected and permits a sensitive pressure relief. Pressure gauge and adaptor can be delivered as accessories.
Technical data Yale Hand pumps for double-acting hydraulic cylinders HPH:
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