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Combine Harvester Pictures:
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Thread steam pressure relief valve structural features and uses:
Threaded steam pressure reducing valve is a pilot piston pressure reducing valve. It consists of two parts, the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder liner, spring and other parts. The pilot valve is mainly composed of valve seat, valve flap, diaphragm, spring, adjusting spring and other parts. By adjusting the regulating spring pressure to set the outlet pressure, using the diaphragm to sense the outlet pressure change, the pilot valve is used to open and close the drive piston to adjust the size of the over-flow area of ​​the throttle valve of the main valve to realize the function of decompression and voltage regulation. Threaded steam pressure reducing valve is mainly used for steam pipeline, starting from the role of decompression regulator. 
Thread Steam Pressure Reducing Valve Structure Features and Uses
Threaded steam pressure reducing valve, the drive mode can be automatic, the connection mode can be thread or flange, the structure can be pilot piston type, the sealing structure can be soft sealed, hard seal, pressure range PN0.1-16Mpa, nominal diameter For DN15-50mm, the material can be cast iron, cast steel, stainless steel. Due to the wide range of use of the valve, the same type of valve has a different mix of operating conditions and conditions.