The Additel Pneumatic Pressure Test Pumps are available in Low and High versions.
They are ideal comparison test pumps for pressure instrument calibration.

ADT901A
Low Pressure Test Pump
The 901A Low pressure test pump generates either vacuum to -6 psi or pressures to 6 psi, ideal low pressure comparison calibration.

ADT912A
Low Pressure Test Pump
The 912A Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 60 psi (4 bar).

ADT917
Pressure Test Pump
The 917 Pneumatic Pressure Test Pump from Additel is a hand operated pressure pump designed to generate pressure from 95% vacuum to 1,000psi (70bar).

ADT918
Pressure Test Pump
The 918 Pneumatic Pressure Test Pump from Additel is a hand operated pressure pump designed to generate pressure from 95% vacuum to 1,500psi (100bar).