Hand Pump

A pump operated by the movement of a handle powered by a human hand. 

In the petroleum marketing field, a hand pump is typically used for dispensing product from a 55-gallon drum. The pump, usually equipped with a 4- or 5-foot length of dispensing hose, is mounted on the top of the drum. A tube, mounted on the underside of the unit, extends down into the liquid below. 

To dispense product, the operator moves a handle back and forth, or turns a wheel-like handle. The movement of the handle creates a vacuum in the pump, and this draws product up from below. 

Some hand pumps are designated as quart stroke pumps. This identifies them as having been designed to dispense approximately 1 quart of liquid with each complete rotation of the handle.



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