Double-seal valve seat
A double sealing and valve seat technology, applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of poor sealing effect and large torque, so as to increase the service life, reduce the opening torque and ensure the sealing effect Effect
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[0013] As shown in the figure, two sealing rings are arranged on the valve seat sealing body 1 on the valve seat 4, the lower sealing ring 3 forms an included angle of 5°-10° with the vertical direction of the valve seat 4, and the upper sealing ring 2 and the valve seat 4 The vertical direction forms an included angle of 15°-25°, and the traditional single-line seal is changed to a double seal while making full use of the elastic deformation characteristics of the material PTFE to achieve a good sealing effect.
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