球閥的工作原理是通過旋轉(zhuǎn)閥芯來實(shí)現(xiàn)閥門的開啟或關(guān)閉。球閥的啟閉件是一個(gè)球體，球體繞閥桿的軸線旋轉(zhuǎn)90度，從而控制流體的通斷。當(dāng)球閥旋轉(zhuǎn)到開啟位置時(shí)，流體可以通過球閥；而當(dāng)球閥旋轉(zhuǎn)到關(guān)閉位置時(shí)，球體與閥座緊密接觸，阻止流體通過。球閥具有開關(guān)輕便、體積小、密封可靠、結(jié)構(gòu)簡單、維修方便等特點(diǎn)，并且適用于多種介質(zhì)，包括含纖維、微小固體顆粒的介質(zhì)。?
B2P290-15G,B2P290-20G,B2P290-25G,B2P290-32G,
B2P290-40T,B2P290-50T,B2P290-65T,B2P290-80T,
B3P290-15G,B3P290-20G,B3P290-25G,B3P290-32G,
B3P290-40T,B3P290-50T,B3P290-65T,B3P290-80T,
B2P391-15N,B2P391-20N,B2P391-25N,B2P391-32N,
B2P391-40K,B2P391-50K,B2P391-65K,B2P391-80K,
B3P391-15N,B3P391-20N,B3P391-25N,B3P391-32N,
B3P391-40K,B3P391-50K,B3P391-65K,B3P391-80K,
B2P490-15F,B2P490-20F,B2P490-25F,B2P490-32F,
B2P490-40H,B2P490-50H,B2P490-65H,B2P490-80H,
B3P490-15F,B3P490-20F,B3P490-25F,B3P490-32F,

B3P490-40H,B3P490-50H,B3P490-65H,B3P490-80H,