High-performance sealing lining plastic butterfly valve
By setting multiple "O" rings and "V" filler structures on the upper and lower ends and valve stems of the butterfly plate of the anti-corrosion butterfly valve, the problem of medium leakage is solved, and high-performance sealing and long-life effect is achieved.
CN222650586UActive Publication Date: 2025-03-21CHONGQING GUOLI VALVE TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202323469759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2033-12-12
AI Technical Summary
Technical Problem
Existing anti-corrosion butterfly valves are prone to leakage of media during use, resulting in device parking and economic losses.
Method used
Multiple "O" ring sealing structures are set at the upper and lower ends of the butterfly plates, and a "V"-shaped filler structure is set at the upper and lower valve stems of the butterfly plates to form a high-performance sealing effect.
Benefits of technology
Effectively prevent media leakage, ensure reliable quality of the valve, long service life, and eliminate abnormal fault parking losses.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a high-performance sealing lining plastic butterfly valve, and belongs to the utility model and creation of anti-corrosion butterfly valves. The utility model aims to solve the problem that the existing high-corrosivity media, air pipe galleries, process devices, used steel lining fluoroplastic butterfly valves (anti-corrosion butterfly valves for short) and chemical engineering devices with highly corrosive substances have very strict requirements on the sealing performance of the anti-corrosion butterfly valves, and due to the fact that on the toxic and harmful special working conditions, the sealing performance of the anti-corrosion butterfly valves cannot be influenced once the valves leak out of the media. The valve can be replaced only if unsafe factors are caused and the device is stopped. On-site investigation shows that the medium leakage reason of an existing anti-corrosion butterfly valve is that O-shaped rings arranged at the upper end and the lower end of a butterfly plate fail in sealing, and the O-shaped sealing rings eroding a valve shaft fail, so that the medium leaks out of middle holes of an upper valve body and a lower valve body. Therefore, according to the novel anti-corrosion butterfly valve, the upper end and the lower end of the butterfly plate are provided with O-shaped rings for sealing, the upper valve rod and the lower valve rod are provided with packing sealing structures, and the problem of medium leakage is solved.
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