Advantages of plug valve

1、旋塞阀用于经常操作，启闭迅速、轻便。

1. The plug valve is used for regular operation, and the opening and closing is fast and light.

2、旋塞阀流体阻力小。

2. The plug valve has small fluid resistance.

3、旋塞阀结构简单，相对体积小，重量轻，便于维修。

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、不受安装方向的限制，介质的流向可任意。

5. Not limited by the installation direction, the flow direction of media can be arbitrary.

6、无振动，噪声小。

6. No vibration and low noise.

闸阀的缺点:

Disadvantages of gate valve:

1、闸板在开启和关闭过程中始终存在摩擦,因此操作扭矩大,并且在闸板及阀座密封面上易产生划痕,导致阀门泄漏;

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、无自检泄漏装置,(即使通过两个闸阀再安装一小阀达到此功能,也不能实现自动检测功能);

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、对于含有颗粒杂质的介质,如沙粒,沉积在阀门底部,使闸板无法完全关到位,导致阀门的泄漏是非常严重的，(这点对于闸阀来说是致命的缺点)。

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).

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