The Welker FIR-1 Filter / Instrument Regulator is designed to filter and provide regulation of an instrument pneumatic supply. It is intended for use as part of instrument packages.
The regulator of the FIR-1 is non-relieving. Welker recommends that a relief valve, such as the Welker RV-1 or RV-3 series relief valves, be installed downstream of the FIR-1.
|Materials of Construction||316/316L Stainless Steel, Kel-F® Seat, PTFE, Teflon®, Viton®|
|Filter Element||10 micron Linear Polyethylene|
|35 micron Linear Polyethylene|
|Operating Pressure||3000 psig MAOP @ -20 °F to 100 °F|
|Maximum Allowable Temperature||200 °F|
|Inlet Pressure||0 - 3000 psig|
|Outlet Pressure||Dependent upon Spring Range. Refer to the Spring Range Disc under
the Regulator Jam Nut.
|Instrument Air Connections||1/4" NPT|