High-performance center line-type butterfly valve
By using a spherical structure design for the sealing pair and sealing ring, combined with components such as O-rings, packing glands, and annular plates, the problems of poor sealing and rapid wear in centerline rubber-lined butterfly valves are solved, achieving efficient and reliable butterfly valve operation and meeting the needs of modern industry.
CN224174554UActive Publication Date: 2026-04-28SANBORA VALVE
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Patent Information
- Application Number
- CN202520522851.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-28
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Technical Problem
Existing centerline rubber-lined butterfly valves suffer from high closing torque, poor sealing, and easy wear due to their planar sealing design, resulting in shortened lifespan and increased maintenance costs.
Method used
The sealing pair and sealing ring, designed with a spherical structure, combined with components such as O-rings, packing glands, and annular plates, achieve a stable connection and seal for the butterfly valve, reducing friction and wear.
Benefits of technology
It significantly reduces operating torque, improves sealing performance and valve body life, enhances connection stability, prevents leakage, and extends equipment service life.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model belongs to the technical field of butterfly valves, and discloses a high-performance center line-type butterfly valve which comprises a valve body, a valve seat is installed in the valve body, a valve rod is arranged in the valve seat in a penetrating mode, a butterfly plate is installed on the outer wall of the valve rod, the valve rod drives the butterfly plate through rotation, the outer edge of the butterfly plate and the valve seat form a sealing pair, and the valve seat and the butterfly plate are connected through a connecting rod. A sealing ring is installed on the outer side of the butterfly plate, the sealing pair is of a spherical surface structure design, the outer edge of the sealing ring is also of a spherical surface structure, in the using process of the butterfly valve, the sealing pair and the sealing ring are of the spherical surface structure design, the sealing position of the valve seat and the butterfly plate is specially processed, and the contact portion is in smooth transition. Therefore, in the opening and closing process of the valve body, the sealing pair can achieve smooth displacement, and friction and abrasion are greatly reduced. Therefore, the torque needed by the valve body in the operation process is small, the operation difficulty is reduced, the service life of the valve body is remarkably prolonged, and the overall reliability of the valve body is remarkably improved.
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