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

Inactive Publication Date: 2012-07-04
山东沃克控制阀有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]At present, most of the widely used valve seats are single-line seals. Although the processing technology is relatively simple, there are disadvantages of large torque and poor sealing effect when opening

Method used

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Embodiment Construction

[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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Abstract

The invention provides a double-seal valve seat. Two seal rings are arranged on a seal body on the valve seat, a lower seal ring and the valve seat form an inclined angle of 5-10 degrees in the vertical direction, and an upper seal ring and the valve seat form an inclined angle of 15-25 degrees in the vertical direction. Traditional single-line seal is replaced by double-line seal, simultaneously the characteristic of elastic deformation of a teflon material is fully utilized, and good sealing effect is achieved. Compared with an ordinary type valve seat, the double-seal valve seat adopts the double-line seal and is small in opening force moment and good in sealing effect.

Description

Technical field: [0001] The invention relates to the field of pneumatic cut-off ball valves, in particular to a double-sealed valve seat. Background technique [0002] At present, most of the widely used valve seats are single-line seals. Although the processing technology is relatively simple, there are disadvantages of large torque and poor sealing effect when opening. Contents of the invention [0003] In order to solve the above problems, the present invention provides a double sealing valve seat. [0004] The present invention is realized in this way: two sealing rings are arranged on the sealing body on the valve seat, the lower sealing ring forms an included angle of 5°-10° with the vertical direction of the valve seat, and the upper sealing ring forms an angle of 15° with the vertical direction of the valve seat The included angle is -25°, changing the traditional single-line seal to a double seal while making full use of the elastic deformation characteristics of...

Claims

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Application Information

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IPC IPC(8): F16K5/20F16K5/06
Inventor 王秀孙刚王宏刘业军刘常成刘晓丽
Owner 山东沃克控制阀有限公司
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