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闸阀：闸阀是一种可启闭的阀门。它只能全开或全关，不能用于调节。其主要功能是关闭和开启。当闸阀关闭时，可通过介质压力实现密封。
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2025-05-28
明杆铸铁闸阀和暗杆铸铁闸阀是闸阀的两种主要结构类型，其核心区别在于阀杆的设计和运动方式，从而导致其工作特性、适用场景和维护要求也有所不同。
2025-05-08
How to Select 4-Inch Flange Cast Iron Gate Valve: Key Points and Practical Guide
Four-inch flange cast iron gate valves are widely used in industrial piping systems due to their pressure resistance, corrosion resistance and long life, such as water treatment, petrochemical, HVAC and other fields. However, there are many types of products on the market with varying quality. How to correctly select a valve requires a combination
2025-04-03
How to Choose Different Types of Check Valves
A check valve is a valve whose opening and closing parts are circular discs and which rely on their own weight and medium pressure to produce movement to block the backflow of the medium.
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