Additel 917 / 918 Test Pumps

The Additel 917 and Additel 918 are hand-operated, high pressure pneumatic test pumps designed to be an ideal comparison test pump for pressure instruments calibration. These pumps can provide pressures from 95% vacuum to 70 bar (Additel 917) or 100 bar (Additel 918). Fine pressure adjustments, with a resolution of up to 0.1 mbar can be made with the precision screw press.

Both the 917 and 918 are designed to easily connect to test instruments and have specially designed shut-off valves to provide stable pressures during calibration. Built-in isolators protect the pumps from dirt and moisture, reducing the need for maintenance.