Pilot operated pressure relief valves with aluminum or carbon steel construction, modulating-action pilots. A variety of soft seat materials (Buna-N, Viton, etc.) are available. Ideal for natural gas regulator and meter protection, and positive displacement blower protection. Inline repairable. This product provides high capacity flow rates. Made for DOT / gas transmission applications (non-Code). FLOWSAFE customers buy smaller valves, save money!

Connections: 1.5"-12" inlet, flanged (1.5" FNPT)
Set Pressures 10"wc to 285 psig (ANSI 150)
Temperature Range: -65 to +400°F Pilot exhuast to M.V. outlet standard.