Process Gas Equipment – Check Valve/Vacuum Generator/Flow Switch

Check Valve

Check Valve

The AP64 is an all welded and springless check valve. The unique ultraclean design has only one moving part and O-ring. The check valve provides reverse flow protection for N2 purge gas introduction and other applications.


Vacuum Generator

Vacuum Generator

There are four vacuum generator models to choose from - two simple vacuum generators, AP 7 and AP70, and two modules, AP71 and AP72, which include vacuum generator, N2 inlet shut off valve and N2 inlet check valve. The modules provide a compact and cost effective solution for vacuum generator installations. The individual vacuum generators provide a variety of configurations. The devices are designed for use in gas delivery systems to improve efficiency when venting for purging.


Flow Switch

Flow Switch

The AP 74 and AP 74B are safety devices to detect excess flow in UHP gas delivery systems. The switches are available with a wide variety of trip points and configurations. An online selection guide makes choosing the proper switch for a given gas, pressure and maximum flow rate as simple as a few key strokes.