DRAIN VALVES INNOVATION FOR HAND AND FOOT PUMPS

In the drain valves of hand and foot pumps, the original ball has been replaced with a specially shaped cone, which reduces the force (torque) for reliable sealing by approximately half and at the same time allows very fine regulation at the beginning of opening, with full oil flow being achieved by opening it by 1 turn.
The control wheel on hand pumps has been slightly enlarged to make it even more ergonomic (fits better in the hand).
A large diameter wheel was used for the foot pumps so that opening and closing the legs could be easily controlled.

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