Series 200/400/500/700/800 Pilot Operated Relief Valves
Series 200/400/500/700/800 Pilot Operated Relief Valves
Enquire about this ProductPremium performance and advanced technology for overpressure protection Anderson Greenwood pilot operated pressure relief valves provide advanced, reliable and efficient overpressure protection. With a track record of more than 50 years, the product technology is designed for a wide range of applications, from basic to the most severe service conditions.
- Manufacturer: Emerson
- Valve Type: Pressure Relief & Safety Valves
- Sub-Type: Anderson Greenwood Pressure Relief Valves
- Soft seat design: Provides repeatable bubble-tight performance before and after each relief cycle.
- Metal-to-metal seat design: Provides pilot valve performance in high temperature service.
- Bubble-tight seats near set pressure: Allows higher system operating pressure and, therefore, maximum process output; not as sensitive to vibrational and pulsating service; reduces product loss.
- Pop action available: No main valve throttling, which helps prevent freeze-ups in cryogenic or refrigerant type services.
- Modulating action available: Minimized product loss per relief situation; reduced environmental pollution; avoids oversizing consequences; not as sensitive to inlet pressure losses as pop action.
- Field test connection: Quick, simple verification of set pressure while valve remains in service.
- Balanced design: Lift unaffected by back pressure; no expensive and fragile bellows required to balance against high back pressure.
- Full lift at set pressure: No overpressure required for full lift; allows D.O.T. installation to be set higher than Maximum Allowable Operating Pressure (MAOP) when pop action is used.
- Replaceable soft seats and seals: All seats and seals are renewable easily and quickly; no expensive, time-consuming seat lapping required.