Vacuum Cylinder Hand Pumps

Generate vacuum to calibrate vacuum devices in the field

Ralston Info & Links

Ralston Instruments
P.O. Box 340
Novelty, Ohio 44072
United States

Generate vacuum to calibrate vacuum devices in the field

Lightweight, compact pump generates 23 inHg (584mm Hg)vacuum with ease
Large volume fine adjustment piston provides precise control, even at very low vacuums
Modular design makes field maintenance quick and easy
Precisely vent pressure with soft seated bleed valve
Two outlet ports provide connections for both pressure reference and for device under test thus eliminating a tee
Low volume Quick-test hose, gauge adapter and process connection can be attached to pump without thread sealant or a wrench
Rugged, all metal construction reduces pressure changes due to temperature fluctuations
Made in U.S.A.

Ralston Vacuum Cylinder Hand Pumps come in a variety of different configurations. Choose which bundle is right for your application.

We’ll help you find the right solution for your application, whether you’re working in the field or a lab.

We’ll help you find the right solution for your application, whether you’re working in the field or a lab.