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          NKJ61/64Y NKJ41/44H vacuum isolation valve
          Product Name:
          NKJ61/64Y NKJ41/44H vacuum isolation valve
          Description:

          NKJ61/64Y NKJ41/44H真空隔離截止閥

          產(chǎn)品描述:

          主要結(jié)構(gòu)特點(diǎn)及用途

          ①本系列閥門主體采用鑄鍛結(jié)構(gòu),具有平行雙密封副半強(qiáng)制雙向密封,密封面到位運(yùn)動(dòng)和楔形塊運(yùn)動(dòng)分步作用實(shí)現(xiàn)零泄漏。

          ②密封面運(yùn)動(dòng)摩擦力小,啟閉輕便,而且密封面磨損有自動(dòng)補(bǔ)償功能。

          ③結(jié)構(gòu)簡單、緊湊、檢修方便、使用壽命長。

          ④閥蓋填料室設(shè)有真空密封結(jié)構(gòu),具有自脹壓緊作用,并且各接觸面采用高強(qiáng)膨脹材料密封,使系統(tǒng)與大氣完全隔離,具有很好的系統(tǒng)氣密性。

          ⑤本系列閥門連接形式分法蘭、焊接兩種,驅(qū)動(dòng)方式有手動(dòng)、電動(dòng)兩種。

          ⑥該閥門適用于工作溫度≤425℃和≤550℃,工作介質(zhì)為水、蒸汽或空氣的管路上,作為啟閉裝置;尤其適用于火電廠汽機(jī)冷凝和真空負(fù)壓系統(tǒng),起真空隔離密封作用。

          閥門結(jié)構(gòu)型式


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