球閥：有固定式、浮動式、電動式等多種類型，具有密封性好、流體阻力小、操作靈活、啟閉迅速等特點，適用于各種工業管道中液體和氣體的輸送，包括強腐蝕性介質。

Ball valve: There are various types such as fixed, floating, and electric, which have the characteristics of good sealing, low fluid resistance, flexible operation, and quick opening and closing. It is suitable for the transportation of liquids and gases in various industrial pipelines, including highly corrosive media.

閘閥：有平行式、升降式、截止式等多種類型，可用于切斷或調節流體，結構簡單、操作方便。

Gate valve: There are various types such as parallel, lift, globe, etc., which can be used to cut off or regulate fluids. It has a simple structure and easy operation.

止回閥：有旋啟式、升降式、蝶式等多種類型，能防止流體倒流，常用于防止水錘現象。

Check valve: There are various types such as swing, lift, butterfly, etc., which can prevent fluid backflow and are commonly used to prevent water hammer phenomenon.

安全閥：有彈簧式、杠桿式、薄膜式等多種類型，用于保護設備和管道系統安全，當壓力超過設定值時自動開啟，釋放壓力。

Safety valve: There are various types such as spring type, lever type, diaphragm type, etc., used to protect the safety of equipment and pipeline systems. When the pressure exceeds the set value, it automatically opens and releases the pressure.

蝶閥：結構簡單、啟閉迅速、安裝方便，采用高性能密封材料，密封性能優良，可起到調節流量、切斷介質、防止倒流等作用。

Butterfly valve: simple structure, quick opening and closing, easy installation, using high-performance sealing materials, excellent sealing performance, can regulate flow, cut off media, prevent backflow and other functions.

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