The  Process   
Instrument gas is delivered to regulating the valves, meters and other control and test equipment.

The  Problem   
Contaminated natural gas can cause excessive valve wear, blockage of sensitive detection devices, and metering equipment failures. The filtration of instrument gas will reduce these problems and overall maintenance.

Fuel Gas and Instrument Gas Application Guide
Process	Recommended FBM Filter & Rating	Recommended Flow Rate
Fuel Gas/ Instrument Gas	FBM Filter 2 micron absolute in gas	120* SCFM / 10″ filter element