Tyco's Anderson Greenwood 5200 pilot operated pressure relief valve can withstand high temperatures and pressures

Tyco Flow Control's Anderson Greenwood 5200 pilot operated pressure relief valve is designed to withstand the high temperatures and pressures that are prevalent in heat recovery steam generators in combined cycle power plants, while meeting the code requirements of the American Society of Mechanical Engineers (ASME). 

The 5200 has a metal main valve seat, as opposed to the resilient seat commonly used in pilot operated pressure relief valves. The metal seat allows the valves to withstand higher temperatures – up to 1000° F. In addition, the 5200 is a modulating pilot operated valve, rather than a spring-loaded or snap-acting pilot valve. This feature enables the valve to open in proportion to the specific overpressure needed while providing maximum tightness during the critical start-up processes and allows the valve to operate closer to set pressure without leakage.

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