Dresser Consolidated Pilot Operated Safety Relief Valve

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Dresser consolidated pilot operated safety relief valve.

Consolidated 4900 pilot operated safety relief valve the type 4900 mpv features innovative pilot operated safety relief design that incorporates internal passages between the main valve and pilot valve sub assemblies. The 13900 series pilot operated safety relief valve is well suited for high capacity steam applications. The type 2900 modular pilot operated safety relief valve mpv combines the full nozzle construction of the type 1900 main valve design with the extremely versatile pilot valve options from the 3900 mpv design. The type 3900 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.

Typically provided with a metal to metal seat this pilot operated safety relief valve can be used over a broad temperature range. A pilot operated safety relief valve is a pressure relief valve in which the major relieving device is combined with and is controlled by a self actuated auxiliary pressure relief valve. Brands in the productrange of dresser valves are the maxi flow high pressure safety valve and the consolidated mpvtm modular pilot operated safety valve camflex and varimax eccentric plug rotary valves t ball rotary valves the svi digital positioner and process controllers. With more than 10 major first to market products and features consolidated continues to deliver innovative technical solutions to the world s most challenging overpressure protection applications.

Consolidated brand model 13900 pilot operated safety relief valve combines high capacity with simple construction designed to asme section viii consists of a small conventional fail safe pilot valve and a high capacity main valve platform. This tubeless assembly provides inherent advantages by reducing potential damage to external tubing. This design can also be used effectively with other compressible fluids that exhibit similar characteristics to saturated steam at the same conditions like boiler feed pump turbines flash tanks steam line dearators.