What is the difference between fluorine lined butterfly valve and rubber lined butterfly valve

by:Lianke Valve     2022-06-05
What is the difference between a fluorine lined butterfly valve and a rubber lined butterfly valve? Some people still don't know what a fluorine lined butterfly valve is, what is a rubber lined butterfly valve, and the metal hard seal butterfly valve_Soft seal butterfly valve manufacturer to tell you fluorine lined butterfly valve and rubber lined butterfly valve What is the difference between the butterfly valves, I will talk about the characteristics of the fluorine-lined butterfly valve: When the flow is reversed, the seal between the valve plate and the valve seat * The torque of the drive device presses the valve plate against the valve seat. With the increase of the reverse medium pressure, when the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, the deformation stored by the spring of the adjusting ring after being loaded can compensate the tight pressure between the valve plate and the valve seat sealing surface play an automatic compensation role. Therefore, the utility model does not install the soft and hard multi-layer sealing ring on the valve plate as in the prior art, but is directly installed on the valve body, and adding an adjusting ring between the pressure plate and the valve seat is an ideal two-way hard sealing method . It will replace gate valve and ball valve. Butterfly valve product application D371F46 wafer type fluorine-lined butterfly valve is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids and strong oxidants at -50 ℃ ~ 150 ℃, FEP is also suitable for various Concentration of strong alkali organic solvents and other corrosive gases and liquids are used in pipelines. The characteristics of the rubber-lined butterfly valve The sealing surface of the valve plate and the valve seat is an oblique conical structure, and the temperature-resistant and corrosion-resistant alloy materials are surfacing on the oblique conical surface of the valve plate; the spring fixed between the adjustment ring pressure plates is assembled with the adjustment bolts on the pressure plate Structure. This structure effectively compensates the tolerance zone between the shaft sleeve and the valve body and the elastic deformation of the valve stem under the medium pressure, and solves the sealing problem of the valve during the two-way exchange of medium conveying. The sealing ring is composed of multi-layer stainless steel sheets on both sides of the soft T-shaped, which has the dual advantages of metal hard sealing and soft sealing, and has zero leakage sealing performance under low temperature and high temperature conditions. The test proves that when the pool is in a positive flow state (the direction of medium flow is the same as the rotation direction of the butterfly plate), the pressure on the sealing surface is generated by the torque of the transmission device and the action of the medium pressure on the valve plate. When the positive medium pressure increases, the tighter the oblique conical surface of the valve plate and the sealing surface of the valve seat are, the better the sealing effect will be. In the reverse flow state, the torque of the seal drive between the valve plate and the valve seat presses the valve plate against the valve seat. With the increase of the reverse medium pressure, when the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, the deformation stored by the spring of the adjusting ring after being loaded can compensate the tight pressure between the valve plate and the valve seat sealing surface. play an automatic compensation role. Therefore, the utility model does not install the soft and hard multi-layer sealing ring on the valve plate as in the prior art, but is directly installed on the valve body, and adding an adjusting ring between the pressure plate and the valve seat is an ideal two-way hard sealing method . It will replace gate valves and ball valves.
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The types of industrial valves valve application has significantly numerous benefits over other types of industrial valves systems, which makes it first choice for types of industrial valves.
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