The Kirby Morgan overpressure Relief Valve is factory adjusted to vent any time the pressure in the low pressure hose connecting the bailout bottle to the emergency valve exceeds 200 P.S.I. It is installed into any of the low pressure ports in the first stage regulator.
Body: Stainless steel
Spring: Stainless steel
DSI 200-017 KM OPRV Procedures
DSI 225-017 Over Pressure Relief Valve Rebuild Kit