A shock-resistant bidirectional sealing butterfly valve

By introducing an anti-impact unit and a detection unit into the bidirectional sealing butterfly valve, the impact of the medium is detected and the movement of the rotating parts is controlled. By utilizing the elastic structure and flow guidance optimization, the wear problem of the sealing parts under frequent impact conditions is solved, thereby improving the sealing performance and extending the service life.

CN122216352APending Publication Date: 2026-06-16CHINA VALVE HLDG (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA VALVE HLDG (GRP) CO LTD
Filing Date
2026-05-07
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

In existing bidirectional sealing butterfly valves, under conditions of frequent back-and-forth impacts and alternating pressures of the medium, the sealing components are prone to wear, leading to sealing failure and leakage.

⚗Method used

By employing an impact-resistant unit and a detection unit, the coordinated action of rotating and adjusting components is controlled by detecting the direction and force of the impact of the medium, thereby reducing the wear of the seals, utilizing the elastic structure to adapt to water flow fluctuations, optimizing the flow guidance effect, and converting the impact energy of the medium.

🎯Benefits of technology

It effectively reduces wear on seals, extends service life, improves sealing performance, reduces leakage risk, and enhances the overall service life of butterfly valves.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122216352A_ABST
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Abstract

The application discloses an anti-impact bidirectional sealing butterfly valve and relates to the technical field of industrial valves.The anti-impact bidirectional sealing butterfly valve comprises a valve body, a sealing unit, an anti-impact unit and a detection unit, wherein the valve body is used for providing a mounting and fixing base for the sealing unit, the anti-impact unit and the detection unit; the sealing unit is used for controlling the opening and closing of the valve body; the anti-impact unit is used for avoiding the abrasion of the sealing unit caused by the water flow impact on the sealing unit; and the detection unit is used for detecting the water flow direction and controlling the anti-impact unit. After the sealing unit completes the sealing of the valve body, the detection unit detects the water flow direction in the valve body, the impact force of the water flow on the sealing unit is reduced through the anti-impact unit, the relative movement of the sealing part is avoided, the abrasion of the butterfly valve caused by the impact is reduced, and thus the service life of the butterfly valve is prolonged.
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