The Ralston DPPV hand pump is lightweight, compact and easily generates vacuum to -23"Hg / -584mm Hg and pressure up to 9 bar / 125psi.

A large volume fine adjustment piston gives precise control to 0.01psi across the full range. Outlet ports provide connections to a pressure reference and device under test. The soft seated bleed valve enables accurate venting.

The DPPV features Ralston Quick-Test fittings for finger-tight connections without thread tape or a wrench. Rugged, aluminium and stainless steel construction reduces pressure changes due to temperature fluctuations. The modular design and replaceable parts make field maintenance quick and easy.

The DPPV should be used with dry, inert gas / air and an in-line filter for protection against process contaminants.