Types and application of grooved butterfly valve
Escalator,Commercial Escalator,Escalator Price,Flat Escalator Homefriend&FUJI Elevator Co.,Ltd , https://www.jfujilift.com
February 25 10:06:08, 2023
Grooved butterfly valve type and its characteristics of the scope of application: butterfly valve seal and metal seal two types of seal. (A) the use of metal sealing valve is generally longer than the flexible seal valve life, but it is difficult to be completely sealed. Metal seals can adapt to higher operating temperatures, while flexible seals have temperature-limited defects. If the butterfly valve is required to be used as a flow control, the main choice is the correct size and type of valve. SPD341H three eccentric two-way all-metal sealing butterfly valve: all-metal sealing butterfly valve, is a brand-new structure butterfly valve developed by our company's high-tech development department. The highest pressure level of the valve (10.0MPa), the applicable temperature -20 ℃ --600 ℃, the maximum nominal diameter, has been manufactured to 2400mm. The plant in the development of all-metal sealing butterfly valve, invented a three-eccentric tapered tapered metal seal, good sealing performance, and can adapt to sudden changes in media pressure and temperature of the occasion. Because the butterfly valve is generally all-metal structure, does not contain any asbestos, graphite cushioning material will not cause the media pollution, it is particularly suitable for petrochemical, power generation, metallurgy, medicine, beverage, industrial requirements. All-metal seal butterfly valve body is divided into two forms of cast steel and welded, this structure of the butterfly valve if the full metal seal into tetrafluoroethylene as a sealing material, can become a PTFE sealed butterfly valve. This butterfly valve can achieve zero leakage. Butterfly valve seals with a full metal ring, seat sealing surface using the body or direct surfacing materials, sealing performance and reliable. (B) flexible seal valves, seals can be embedded in the body or attached to the butterfly plate around. 1. Uses: The butterfly valve for food, medicine, petrochemicals, industrial and environmental protection and high-rise buildings and pipelines for regulating flow and cut off the fluid the best position. 2. Structural Features: The butterfly valve absorption, digestion of foreign technology, combined with the views of domestic users and production experience accumulated carefully developed a new generation of products: 1) the use of three-dimensional eccentric structure, the body sealing ring with flexible metal ring so that Butterfly plate sealing surface with the valve body uniform and reliable contact, reaching its seal five slope; 2) unique structure, flexible operation, labor-saving, convenient, long life; 3) high temperature, corrosion-resistant, wear-resistant three-dimensional eccentric.