Create the pressure you need —
when you need it
No matter the pressure medium or range — Ralston Instruments has a hand pump for that
Make Connections without a Tee
Connect to the pressure reference and to the device being calibrated without additional tees using the two pressure ports on Ralston hand pumps.
Reference Gauge Compatibility
Connect to standard digital or analog gauges using Ralston gauge adapters.
Calibration Convenience
Hand held calibration for remote or hard to reach processes.
Creating the pressure you need — for any application
Vacuum
-30 in Hg to 0(-584 mmHg to 0)
Applications:
Vacuum gauge calibration
Vacuum switch testing
Pressure Media:
Air
Models:
Low Pressure
0 to 100 psi(0 to 7 bar)
Applications:
Differential pressure transmitter calibration
Leak testing
Pressure Media:
Air
Models:
Medium Pressure
100 psi to 300 psi(7 bar to 20 bar)
Applications:
Relief valve testing
Pressure gauge calibration
Pressure Media:
Air
Models:
High Pressure
300 psi to 5,000 psi(20 bar to 350 bar)
Applications:
Pressure regulator adjustment
Safety relief valve testing
Hydrostatic testing
Pressure Media:
Hydraulic fluid
Water
Models:
Ralston Instruments Hand Pumps — Rugged Construction and Simple Convenience
Save time. Save money.
Fast and easy to operate, our pumps are engineered for the real world. It's simple to field test pressure transmitters, gauges or switches anywhere the job demands.
Long Lasting
Replacement parts and kits for
all our hand pump models
Convenient
Simple design allows easy field maintenance with just a screw driver
Controllable
Soft seated bleed valves mean the pressure can be dropped very easily
Rugged
Durable construction
built to work in the field
Powerful
Lightweight, portable, handheld pressure up to 5,000 psi
Flexible
Two pressure ports means
no need for a tee
Precise
Make precise adjustments of pressure with the fine adjust vernier
Compatible
Each hand pump is compatible with all Quick-test™ hoses and adapters