Regular: 3/8", 1/2", 3/4", and 1"
Diaphragm: 4" Molded, roll-out polyester fabric reinforced Buna-N with integral relief seat and case flange seal
Vent and Valve: Precision-fit polypropylene valve and seat, threaded 3/4" or 1" NPT
Adjustment Screw: ABS cycolac
Closing Cap: ABS cycolac with internal relief valve stop and a hole for available tamper seal wire
Corrosion Protection: Chromate converted castings, topcoat enamel,optional E-coat
Internal Relief Valve: Set to relieve at 7" w.c. - 10" w.c. above normal outlet pressure setting of 7" w.c.
For use on other compatible gases, flow capacities must be adjusted using the following correction factors:
Type Gas Sp Grav Corr Factor
Air 1.0 0.77
Propane 1.53 0.63
Propane-air 1.2 0.71
Nitrogen 0.97 0.79
Dry CO2 1.52 0.63
For other non-corrosive gases, the Correction Factor is equal to: √0.6/Specific Gravity
These are multi-poised regulators, designed to that they can be mounted in any piping orientation.