型號(hào)：q647f 品牌：其他 材質(zhì)：襯氟 連接形式：外螺紋 結(jié)構(gòu)形式：浮動(dòng)球球閥 適用介質(zhì)：氧氣 壓力環(huán)境：常壓 工作溫度：真空 標(biāo)準(zhǔn)：國(guó)標(biāo) 流動(dòng)方向：換向 驅(qū)動(dòng)方式：熱力 零部件及配件：閥桿 用途：泄壓 類型(通道位置)：直通式 作用對(duì)象：氧氣

供應(yīng)q647f固定球氣動(dòng)球閥的詳細(xì)描述：

固定球氣動(dòng)球閥適用于Class150-300Lb，工作溫度≤150℃的長(zhǎng)輸管線和一般工業(yè)管線，其安全、耐惡劣環(huán)境性等的設(shè)計(jì)均已進(jìn)行特殊考慮，適用于水、油品、蒸汽等介質(zhì)。

產(chǎn)品結(jié)構(gòu)特點(diǎn)
1.閥門中腔停滯的壓力異常超過彈簧的預(yù)緊力時(shí)，閥座后退脫離球體，達(dá)到自動(dòng)泄壓的效果，卸壓后閥座自動(dòng)復(fù)位。
2.當(dāng)萬一發(fā)生火災(zāi)或由于異常升溫使閥座密封圈燒損或軟化時(shí)，在彈簧和介質(zhì)壓力作用下，使支撐圈球面部位和球體形成金屬對(duì)金屬接觸，達(dá)到暫時(shí)密封作用，阻止了火災(zāi)進(jìn)一步擴(kuò)大，符合API 6FA的規(guī)定。
3.填料壓蓋部位密封采用PTFR填料和0形密封圈雙重密封圈，特別適用于氣體介質(zhì)，填料裝在填料盤內(nèi)，可隨時(shí)采用摩擦系統(tǒng)低的新型SF型自潤(rùn)滑滑動(dòng)軸襯，減低操作力矩。

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