保特律閥門

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H42W-16P H42H-16C  H42H-25 H42H-40  H42H/Y/W鑄(鍛)鋼立式止回閥產(chǎn)品概述  (保特律閥門) 9{SD(z4Q  
H42W/H/Y嚴格按 API6D、GB/T12235 標準設(shè)計制造,本系列閥門正常處于關(guān)閉狀態(tài)，由于管線中進口端介質(zhì)的壓力作用，而克服彈簧阻力使閥門開啟。當(dāng)進口端介質(zhì)壓力低于出口端時，彈簧將閥芯推向閥座而使閥門關(guān)閉，阻止介質(zhì)逆流，故起止回作用。本閥門由于采用彈簧支撐閥芯，故采用立式安裝或臥式裝均可。本產(chǎn)品廣泛應(yīng)用于石油、化工、制藥、電力行業(yè)等各種工況的管路上。 q_{wJeE0G  
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