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ANDERSON GREENWOOD SERIES 200/400/500/700/800 PILOT OPERATED RELIEF VALVES Emerson.com © 2017 Emerson. All Rights Reserved. VCTDS-00543-EN 24/05 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 ...
Features. Download Case Study. 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.
A pilot controls pressure over a large unbalanced member in the main valve, such as a diaphragm or piston (see Figure 3), which means a much larger force on top of the seat compared to process forces pushing up on it.
AGCO's modulating PSVs achieve full lift with about 2 to 3% overpressure, well below the 10% allowed by code for a single PSV in other than fire exposure so the modulating action from virtually zero flow to full flow occurs over a relatively narrow pressure range.
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.
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.
The Anderson Greenwood Series 400 modulating pilot operated relief valve maximizes operating pressures, minimizes emissions, and provides reliable performance. The Series 400 is suitable for gas, liquid, and two-phase applications.
