描述--
氨用截止閥操作方便、靈活,工作行程小，啟閉時間短；關(guān)閉體（閥瓣）與閥座密封面采用錐面密封，關(guān)閉力小，耐沖刷，密封可靠。閥座可為更換式閥座，可任意組合與關(guān)閉件密封面材料的配對，以滿足工況要求，延長使用壽命
The cut-off valve for ammonia is easy to operate, flexible, small work travel and short opening and closing time; the closed body (valve) and seat seal face is conical seal, and the closing force is small, and the seal is resistant to scour and the seal is reliable. The valve seat can be replaced valve seat, and it can be combined and closed with the sealing face material at any time to meet the working requirements and prolong the service life.
優(yōu)點--
1.針對普通閥門耐腐蝕性能差、殼體易穿孔的缺點，根據(jù)介質(zhì)具體特性，氨氣專用閥在閥體材料上選用耐腐蝕鋼(碳素鋼添加耐蝕合金元素)，可耐氨氣、液氨腐蝕，低溫可至－40℃,最大限度保證工況條件使用要求。
2.氨用截止閥密封副配對結(jié)構(gòu)型式采用球、平面型，密封自動補償，達到雙重保險的效果，密封性能穩(wěn)定，無粘著磨損，有效地解決了化工管道用普通閥門密封性能差、易泄露的難題。
3.產(chǎn)品中法蘭采用榫槽密封結(jié)構(gòu)，即使在管道壓力波動的情況下，保證中法蘭密封絕對可靠。
4.上密封裝置中采用多級聚四氟乙烯密封材料，形成組合密封，確保閥門在使用期限內(nèi)填料函無介質(zhì)泄露，消除了普通閥門填料函密封薄弱、介質(zhì)易外漏，甚至造成事故的可能。
用途--
氨用截止閥結(jié)構(gòu)緊湊，設(shè)計合理,通道流暢耐性好,流阻系數(shù)小,密封面采用巴氏合金或四氟,使用壽命長,在使用過程中遇到溫差幅度變動環(huán)境下能自然達到化學(xué)處理性能,適用于食品、啤酒、制藥、化工、水利等行業(yè)冷凍、冷藏系統(tǒng)的氨氣、氨液介質(zhì)的管路中。
The cut-off valve has a compact structure, reasonable design, good flow resistance, small flow resistance coefficient, a long life, and a natural ability to achieve chemical treatment under the environment of temperature difference during the use. It is suitable for freezing and refrigerating systems in food, beer, pharmaceutical, chemical, water conservancy and other industries. In the pipeline of ammonia and ammonia liquid medium.
