The Type 4900 modular pilot-operated safety relief valve (MPV) features a separate, non-flowing pilot sub-assembly design making it well-suitable for use with both compressible and incompressible fluids. Optional pilot valve constructions offer either pop action or modulating action functionality to meet various pressure range, seat tightness, and blowdown requirements. Key features and benefits of the 4900 Pilot Operated Safety Relief Valve include:
Power Generation
Heat Recovery Steam Generator, Economizer (Steam and Liquid)