球閥的工作原理是通過旋轉閥芯來實現閥門的開啟或關閉。球閥的啟閉件是一個球體，球體繞閥桿的軸線旋轉90度，從而控制流體的通斷。當球閥旋轉到開啟位置時，流體可以通過球閥；而當球閥旋轉到關閉位置時，球體與閥座緊密接觸，阻止流體通過。球閥具有開關輕便、體積小、密封可靠、結構簡單、維修方便等特點，并且適用于多種介質，包括含纖維、微小固體顆粒的介質。
B3T72903-15G-T1-F，B3T72903-20G-T1-F，
B3T72903-25G-T1-F，B3T72903-32G-T1-F，
B3T72904-40T-T2-F，B3T72904-50T-T2-F，
B3T72904-65T-T2-F，B3T72904-80T-T2-F，
B3T72904-15T-T2-F，B3T93905-15N-T3-F7，
B3T93905-20N-T3-F7，B3T93905-25N-T3-F7，
B3T93905-32N-T3-F7，B3T93906-40F-T4-F7，
B3T93906-50F-T4-F7，B3T93906-65F-T4-F7，
B3T93906-80F-T4-F7，B3T74907-15K-L5-F8,
B3T74907-20K-L5-F8,B3T74907-25K-L5-F8,
B3T74907-32K-L5-F8,B3T74908-40K-L6-F8,
B3T74908-50K-L6-F8,B3T74908-65K-L6-F8,
B3T74908-80K-L6-F8,B3T74909-15K-L7-F8,
B3T74909-20K-L7-F8,B3T74909-25K-L7-F8,
B3T74909-32K-L7-F8,B3T74910-40K-L7-F8,
B3T74910-50K-L7-F8,B3T74910-65K-L7-F8,
B3T74910-80K-L7-F8,B3T74912-40K-L7-F8,
B3T74912-50K-L7-F8,B3T74912-65K-L7-F8,

B3T74912-80K-L7-F8,