旋啟式不銹鋼止回閥
【簡(jiǎn)單介紹】
【詳細(xì)說(shuō)明】
旋啟式不銹鋼止回閥:止回閥又稱單向閥或逆止閥,其作用是防止管路中的介質(zhì)倒流。水泵吸水關(guān)的底閥也屬于止回閥類。
啟閉件靠介質(zhì)流動(dòng)和力量自行開啟或關(guān)閉,以防止介質(zhì)倒流的閥門叫止回閥。止回閥屬于自動(dòng)閥類,主要用于介質(zhì)單向流動(dòng)的管道上,只允許介質(zhì)向一個(gè)方向流動(dòng),以防止發(fā)生事故。
止回閥按結(jié)構(gòu)劃分,可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和臥式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為直通式、以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接和焊接三種。
旋啟式不銹鋼止回閥技術(shù)規(guī)范:
1 適用介質(zhì):水、油品、蒸汽。
2 適合溫度:≤425℃。
3 閥門試驗(yàn)壓力及閥門在各級(jí)溫度下的zui大工作壓力。
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