Low flow resistance full-port globe valve

By improving the valve body and valve disc structure of the plug valve, adopting a rectangular cross-section and an arc-shaped sealing surface, and combining it with a rubber sealing layer, the problems of high fluid resistance and severe wear of the plug valve were solved, achieving low flow resistance and long service life sealing performance.

CN224515997UActive Publication Date: 2026-07-17JINGMEN MEIZHONGMEI VALVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGMEN MEIZHONGMEI VALVE CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing plug valves have high fluid resistance when the medium is flowing, and impurities in the medium cause severe erosion and wear on the valve disc rubber layer, resulting in a short product lifespan.

Method used

A low-flow-resistance full-bore plug valve was designed. By improving the structure of the valve body and valve disc, adopting a rectangular cross-section and an arc-shaped sealing surface, and combining a rubber sealing layer, the fluid resistance is reduced and the sealing performance is enhanced.

Benefits of technology

It reduces fluid resistance, reduces the wear of impurities in the medium on the valve disc rubber layer, and improves the sealing performance and service life of the product.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224515997U_ABST
    Figure CN224515997U_ABST
Patent Text Reader

Abstract

The utility model relates to a low flow resistance full-bore plug valve, which comprises a valve body (1) and a valve rod (2) movably and sealingly installed in the valve body (1), a valve disc (3) is arranged in the valve body (1), the valve disc (3) is in driving connection with the valve rod (2), a valve seat (4) is arranged on the inner wall of the inlet end of the valve body (1), the bottom of the valve disc (3) is an arc-shaped sealing surface, the valve rod (2) drives the valve disc (3) to rotate, and the bottom of the valve disc (3) is in contact sealing with the valve seat (4). The utility model has the advantages that the structure of the valve body and the valve disc is improved to improve the vortex turbulent flow and reduce the fluid resistance. The valve disc blocks the medium, the impurities in the medium scour and wear the rubber layer of the valve disc, the sealing performance and the service life of the product are improved.
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Claims

1. A low flow resistance full port plug valve, comprising a valve body (1) and a valve stem (2) movably mounted in the valve body (1), a valve disc (3) being arranged in the valve body (1) and being in driving connection with the valve stem (2), characterized in that A valve seat (4) is provided on the inner wall of the inlet end of the valve body (1). The bottom of the valve disc (3) is an arc-shaped sealing surface. The valve stem (2) drives the valve disc (3) to rotate, and the bottom of the valve disc (3) contacts and seals with the valve seat (4).

2. A low flow resistance full port faucet valve according to claim 1, characterized in that, The valve body (1) has rectangular cross-sections at both the inlet and outlet ends, and the valve seat (4) is a rectangular valve seat.

3. A low-flow-resistance full-bore plug valve according to claim 2, characterized in that, The diameter of the inlet pipe of the valve body (1) gradually decreases from the inlet to the outlet.

4. A low flow resistance full port faucet valve according to claim 3, characterized in that, The cross-section of the valve seat (4) is arc-shaped.

5. A low flow resistance full port faucet valve according to claim 4, characterized in that, The valve disc (3) is covered with a rubber sealing layer (5).

6. A low flow resistance full port faucet valve according to claim 5, characterized in that, The valve disc (3) is provided with a valve stem connection part (6) at the top, and the end of the valve stem connection part (6) is installed at the bottom of the valve stem (2).

7. A low flow resistance full port faucet valve according to claim 1, characterized in that, The valve body (1) has a valve stem mounting hole on its side wall, and the valve stem (2) is installed in the valve stem mounting hole by a packing sealing mechanism.

8. A low flow resistance full port faucet valve according to claim 1, characterized in that, A handle or actuator is connected to the top of the valve stem (2).