Hand pump generates pressure or vacuum
Don Horne
The DPPV hand pump from Ralston Instruments offers a versatile, convenient and compact method of generating pressure or vacuum. This hand held pump has a unique design which allows the user to switch from pressure to vacuum at the twist of a knob and the fine adjustment dial contains a large volume piston which provides precise control through the entire pressure range. It’s capable of generating pressure up to 125psi and vacuum up to 23in Hg and comes standard with a 3 foot hose and a fitting that adapts the hose to 1/4" male NPT.
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