旋塞閥優點
Advantages of plug valve
1、旋塞閥用于經常操作，啟閉迅速、輕便。
1. The plug valve is used for regular operation, and the opening and closing is fast and light.
2、旋塞閥流體阻力小。
2. The plug valve has small fluid resistance.
3、旋塞閥結構簡單，相對體積小，重量輕，便于維修。
3. The plug valve has the advantages of simple structure, small volume, light weight and easy maintenance.
4、密封性能好
4. Good sealing performance
5、不受安裝方向的限制，介質的流向可任意。
5. Not limited by the installation direction, the flow direction of media can be arbitrary.
6、無振動，噪聲小。
6. No vibration and low noise.
閘閥的缺點:
Disadvantages of gate valve:
1、閘板在開啟和關閉過程中始終存在摩擦,因此操作扭矩大,并且在閘板及閥座密封面上易產生劃痕,導致閥門泄漏;
1. Friction always exists during the opening and closing of the ram, so the operating torque is large, and scratches are easy to occur on the sealing surface of the ram and valve seat, resulting in valve leakage;
2、無自檢泄漏裝置,(即使通過兩個閘閥再安裝一小閥達到此功能,也不能實現自動檢測功能);
2. No self checking leakage device (even if this function is achieved by installing a small valve through two gate valves, the automatic detection function cannot be realized);
3、對于含有顆粒雜質的介質,如沙粒,沉積在閥門底部,使閘板無法完全關到位,導致閥門的泄漏是非常嚴重的，(這點對于閘閥來說是致命的缺點)。
3. For the medium containing particle impurities, such as sand, deposited at the bottom of the valve, so that the gate cannot be fully closed in place, resulting in the leakage of the valve is very serious (this is a fatal disadvantage for the gate valve).
The above is the detailed introduction of Lianggong valve. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.kasidc.com
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