Specialty Gas Equipment and Regulators

There are two types of regulators: single-stage and two-stage. The single stage reduces pressure in one step, so its delivery pressure is slightly variable. Therefore, these regulators suit applications where these variations are acceptable, where an operator can readjust as necessary or where the pressure from the inlet is constant.

Two-stage regulators reduce pressure in two steps and maintain constant pressure control even as the cylinder pressure decreases. For applications that require constant outlet pressure, a two-stage is best.   

Every regulator needs a gauge to monitor and adjust pressure levels properly. 

A flowmeter has two basic types: an electronic mass flowmeter or a rotameter. It is applicable only in a fluid system and indicates the fluid’s flow rate.

You must regularly calibrate your specialty gas equipment using calibration gas cylinders for best performance and longevity. Conduct leak and function tests at start-up and an inert gas purge for start and shut down for corrosive or reactive equipment. For non-corrosive equipment, you can perform leak and function tests once or twice a month, increasing as the equipment ages.