

Anderson Greenwood Series 200/400/500/700/800 Pilot Operated Relief Valves
Premium performance and advanced technology for overpressure protection.
Key Features
- 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: Significantly cut product loss per relief situation; reduce environmental pollution; avoid 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.