fluorine lining gate valve

Basic knowledge of fluorine-lined butterfly valve

by:Lianke Valve     2022-09-01
Today, I will introduce to you the introduction, precautions and characteristics of fluorine-lined butterfly valve. The butterfly plate of the fluorine-lined butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open. Features of fluorine-lined butterfly valve: 1. The sealing ring of the valve seat is composed of multi-layer stainless steel sheets on both sides of the soft T-shaped sealing ring. 2. The sealing surfaces of the valve plate and the valve seat are of oblique conical structure, and heat-resistant and corrosion-resistant alloy materials are welded on the oblique conical surface of the valve plate. The installation of the spring fixed between the adjustment ring brackets and the adjustment bolts on the brackets is the same structure. The structure compensates the elastic deformation of the tolerance zone between the bearing and the valve body and the dielectric pressure of the valve rod, and solves the sealing problem of the valve in the bidirectional exchange of medium delivery. 3. 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 regardless of low temperature and high temperature. The test proves that when the pool is in a positive flow state (the flow direction of the medium 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 dielectric pressure on the valve plate. When the medium pressure in the positive direction increases, the stronger the pressing force of the oblique conical surface of the valve plate and the sealing surface of the valve seat, the better the sealing effect. 4. In the reverse flow state, the sticker between the valve plate and the valve seat presses the valve plate onto the valve seat according to the torque of the driving device. 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 spring of the adjusting ring can compensate the pressure on the sealing surface of the valve plate and the valve seat with the stored deformation energy after loading, which can play a role in The role of automatic compensation. Precautions for fluorine-lined butterfly valve: 1. Since the multi-layer soft-stacked sealing ring is fixed on the valve plate, when the valve plate is normally open, the medium forms a positive erosion on its sealing surface, and the sealing performance is directly affected after the belt is washed. 2. Restricted by structural conditions, the structure is not suitable for valves below DN200, because the overall structure of the valve plate is too thick and the flow resistance is large. The introduction of fluorine-lined butterfly valve is here first. If you still have questions or are interested in purchasing, you can consult Lianke Valve Co., Ltd., which is a company specializing in the manufacture of fluorine-lined valves. Contact +86-577-8585 9626 or.
Many of us have heard about valve application and seen some of these units in operation in types of industrial valves, types of industrial valves and types of industrial valves spaces.
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