Fluorine lined check valve: type characteristics and application scope of groove butterfly valve

check valve Types, characteristics, and scope of application of groove butterfly valves:
Butterfly valves have two sealing types: elastic sealing and metal sealing.
（1） Valves with metal seals generally have a longer lifespan than those with elastic seals, but it is difficult to achieve sealing. Metal seals can adapt to higher operating temperatures, while elastic seals have the drawback of being limited by temperature. If butterfly valves are required for flow control, the main thing is to choose the correct size and type of valve.
SPD341H Three Eccentric Bidirectional All Metal Sealed Butterfly Valve:
The all metal sealed butterfly valve is a brand new structure butterfly valve developed by our company's high-tech development department. PTFE lined valve The valve has a high pressure level of up to 10.0MPa, suitable for temperatures ranging from -20 ℃ to 600 ℃, with a large nominal diameter. Currently, it has been manufactured up to 2400mm. In the development of all metal sealed butterfly valves, the factory has invented a three eccentric inclined cone all metal sealing ring, which has excellent sealing performance and can adapt to sudden changes in medium pressure and temperature.
As this butterfly valve is generally made of all metal structure and does not contain any asbestos or graphite cushion materials, it will not cause pollution to the medium, making it particularly suitable for the requirements of petrochemicals, power generation, metallurgy, pharmaceuticals, beverages, and industries. The valve body of the all metal hard sealed butterfly valve is divided into two forms: cast steel and welded, Fluorine lined DC globe valve If the all metal sealing ring is replaced with tetrafluoroethylene as the sealing material for this type of butterfly valve, it can become a tetrafluoroethylene sealed butterfly valve. This type of butterfly valve can achieve zero leakage. clamp-on Fluorine-lined Butterfly Valve The butterfly valve sealing ring adopts all metal sealing ring, and the valve seat sealing surface adopts body or direct welding material, with reliable sealing performance.
（2） Elastic sealing valve, the sealing ring can be embedded on the valve body or attached around the butterfly plate.
1. Purpose: This butterfly valve is suitable for regulating flow and cutting off fluids in food, medicine, petrochemical, industrial environmental protection, high-rise buildings and pipelines.
2. Structural features: This butterfly valve is a new generation product that has absorbed and digested foreign technology, and has been carefully developed based on the opinions of domestic users and accumulated experience in production
1) Adopting a three-dimensional eccentric structure, the valve body sealing ring adopts an elastic metal ring, which ensures uniform and reliable contact between the butterfly plate and the valve body sealing surface, achieving its sealing five slope;
2) Structure, flexible operation, labor-saving, convenient, and long service life;
3) Three dimensional eccentricity that is resistant to high temperature, corrosion, and wear.

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