The FRI/6 balancing type pressure regulator combines a pressure regulator and a 50 micron gas filter in one housing. Various combinations are possible using the FRI/6 with the most of the DMV shutoff valves for a compact, modular system:
Stand-alone pressure regulator and gas filter with threaded flanges, or direct mount to DMV sizes 701, 702 and 703 series safety shutoff valves.
Regulator output pressure monitored by direct mounting an A2 type pressure switch. Additional ports to sense inlet and outlet pressure are also located on the threaded flanges.
Heavy duty diaphragm construction for durability and strength.
Steady, precise and instantaneous regulation of the outlet pressure.
Lock-up type regulator (see page 2 and 3 for details).
Factory installed vent limiter. Review applicable codes for vent line requirements.
Application
The FRI/6 pressure regulator is recommended for industrial and commercial heating applications and is suitable for natural gas, propane, butane, air and inert gases. Suitable for up to 0.1 % by volume, dry H2 S.
A “dry” gas has a dew point lower than +15 °F and its relative humidity is less than 60 %.