The high temperature and high pressure power station valve is also called the special valve for the power station. It is mainly used for the pipelines of various systems of the thermal power station, cutting or connecting the pipeline medium. Applicable medium: non-corrosive medium such as water and steam. Compared with other valve products, high temperature and high pressure power station valves are characterized by high temperature and high pressure and unique self-sealing design. The higher the pressure, the more reliable the seal. Due to the special technical characteristics and working conditions, the products also form features that cannot be replaced by other products. High temperature and high pressure power station valves should generally be installed horizontally in the pipeline.
1. Main design specifications for gate valves of high temperature and high pressure power stations
Design and manufacture GB/T12234 ASMEB16.34
Structure length JB/T3595
Interface connection size JB/T3595 GB/T12224
Inspection and test JB/T3595 MSS SP61
Pressure and Temperature Reference JB/T3595 ANSI B16.34
2. Main pressure level of gate valve of high temperature and high pressure power station
Nominal pressure 200, 250, 320
Working pressure P 55 100V, P 55 140V, P 55 170V
3. Advantages of valve structure of high temperature and high pressure power station
1. The pressure self-tightening seal is used, and the two ends of the valve body branch are welded.
2. The valve seat and valve sealing surface are made of cobalt-based hard alloy plasma spray welding, which has good wear resistance and scratch resistance.
3. The valve stem is treated by corrosion-resistant nitriding, which has good corrosion resistance and scratch resistance.
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