Anderson Greenwood
Pilot Operated Relief Valves
Series 200/400/500/700/800
Anderson Greenwood Pilot Operated Pressure Relief Valves (POPRVs) 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.
- 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.