"Power station valve" is also called power station special valve, which is mainly used for the pipeline of various systems of thermal power station, cutting or connecting the pipeline medium. Applicable medium: non-corrosive medium such as water and steam. Compared with other valve products, 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.
Main design specifications for power station valves
Design and manufacture GB/T12234ASMEB16.34
Structure length JB/T3595
Interface connection size JB/T3595GB/T12224
Inspection and test JB/T3595MSSSP61
Pressure and temperature reference JB/T3595ANSIB16.34
Power station valve main pressure level
Nominal pressure 200, 250, 320
Working pressure P55100V, P55140V, P55170V
Power plant valve structure advantage
1. Pressure self-tightening seal is adopted, 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.
Introduction to nuclear power valves
It is understood that compared with domestic nuclear power valves, foreign nuclear power valves have complete types of foreign nuclear power valves, advanced technology, excellent performance and high reliability. The United States built the world's first experimental nuclear reactor in 1942, and the former Soviet Union built the world's first nuclear power plant in 1954. In the development process of nuclear power technology for more than 60 years, only nuclear power valves have formed a complete design, experiment, manufacturing and testing system, and accumulated a lot of experience, mature products and reliable technology. Western nuclear power valve companies such as Westinghouse in the United States, Wilan in Canada, and Famatong in France hold advanced nuclear power technologies. Wilan's nuclear power valves have a good track record of supply in almost 90% of the world's nuclear power plants. Many nuclear and non-nuclear valves in nuclear islands and conventional islands in nuclear power plants around the world, such as pilot-operated safety valves, main steam isolation valves, regulating valves, and other nuclear power valve technologies and markets are monopolized by the famous nuclear power valve company. And the price is very expensive.
Concerned about surprises
Label: Nuclear power valve and electric valve definition
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