蝶阀在工作中，蝶阀的蝶板在中间介质流动时介质中的杂物会冲刷蝶板，造成蝶板损伤，使阀门关闭不严；
(This is a perennial problem!)
（这是长久存在的问题！）
2.
In addition to the debris in the medium, the sealing surface of the
gate valve is washed out during use, causing damage to the sealing
surface and seriously affecting its tightness.
2.闸阀在使用过程中除了介质中的杂物冲刷闸阀密封面，造成密封面出现破损严重影响其密闭性。
When
the medium flowing through the valve is at rest, the debris in the
medium is hoarded in the valve gate slot, which will cause the gate to
close not in place, leaving gaps, so that the valve is not tightly
closed, and there is leakage and dripping.
流经阀门介质在静止时介质中的杂物囤积在阀门闸板槽中会造成闸板关闭不到位，留有缝隙，使阀门关闭不严，出现渗漏、滴水现象。
3.
All-welded ball valve adopts imported all-welded robot ring seam
welding process to ensure its airtightness and reduce the cost of
screws, gaskets, flanges and so on.
3.全焊接球阀采用进口全焊接机器人环缝焊接工艺，保证其密闭性，减少了螺丝、垫片，法兰等成本。
Directly welded with the pipeline, can be with the pipeline life, can be long service life.
直接与管道焊接，可以与管道同寿命，可使用寿命长。
