Triple eccentric butterfly valve,D343H butterfly valve, cast steel butterfly valve, hard seal butterfly valve, Zhejiang butterfly valve,

Zhejiang PutianThe triple eccentric butterfly valve is suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, the strength of the disc to withstand the pipeline medium pressure when closing should also be considered. In addition, the limitation of the working temperature that the elastic valve seat material can withstand at high temperatures must also be considered. The butterfly valve has a small structural length and overall height, fast opening and closing speed, and fluid control characteristics. The structural principle of the butterfly valve is suitable for making large-diameter valves. When the butterfly valve is required to control flow, it is important to correctly select the size and type of the butterfly valve so that it can work properly and effectively.

Zhejiang Putian triple eccentric butterfly valveGenerally, in throttling, regulation control, and slurry media, where short structural length and fast opening and closing speed(1/4 turn) are required, and for low-pressure shut-off (small pressure difference), the butterfly valve is recommended.

Zhejiang Putian triple eccentric butterfly valveIn applications such as two-position regulation, constricted channels, low noise, cavitation and vaporization phenomena, slight leakage to the atmosphere, and abrasive media, the butterfly valve can be selected.

Zhejiang Putian triple eccentric butterfly valveIn special working conditions such as throttling regulation, strict sealing requirements, severe wear, low temperature(cryogenic), etc., when using butterfly valves, specially designed triple eccentric or double eccentric dedicated butterfly valves with metal sealing and regulation devices are required.

Zhejiang Putian triple eccentricbutterfly valve is suitable for applications requiringstrictsealing, zero gas test leakage, high life expectancy, and working temperatures between-10°C to 150°C in pipelines for fresh water, sewage, seawater, saline water, steam, natural gas, food, oil, various acids and alkalis, and other media.

Zhejiang PutianSoft seal eccentric butterfly valve is suitable for bidirectional opening and closing and regulation in ventilation and dust removal pipelines, widely used in gas pipelines and water channels in metallurgy, light industry, electric power, and petrochemical systems.

Zhejiang Putian triple eccentricMetal-to-metal line seal double eccentric butterfly valve is suitable for pipelines such as urban heating, gas supply, water supply, oil, acids, and alkalis, serving as regulation and throttling devices.

Zhejiang Putian triple eccentricMetal-to-metal face seal triple eccentric butterfly valve, in addition to being used as a program control valve in large pressure swing adsorption(PSA) gas separation devices, can also be widely used in petroleum, petrochemical, chemical, metallurgical, electric power, and other fields.

Zhejiang PutianWorking principle of the triple eccentric metal hard seal butterfly valve: In a typical triple eccentric metal seal butterfly valve, in addition to the two eccentrics of the valve stem and valve plate, the sealing surfaces of the valve plate and valve seat are in the shape of an oblique circular cone (this is the so-called third eccentricity of the triple eccentric). When the triple eccentric metal hard seal butterfly valve is closed, the valve plate is pushed forward due to the eccentricity, and no friction occurs between the valve plate and the valve seat during the closing process. The valve plate directly presses on the valve seat, thus ensuring the service life of the valve;