描述--

氨用截止阀操作方便、灵活,工作行程小，启闭时间短；关闭体（阀瓣）与阀座密封面采用锥面密封，关闭力小，耐冲刷，密封可靠。阀座可为更换式阀座，可任意组合与关闭件密封面材料的配对，以满足工况要求，延长使用寿命

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.

优点--

1.针对普通阀门耐腐蚀性能差、壳体易穿孔的缺点，根据介质具体特性，氨气专用阀在阀体材料上选用耐腐蚀钢(碳素钢添加耐蚀合金元素)，可耐氨气、液氨腐蚀，低温可至－40℃,最大限度保证工况条件使用要求。

2.氨用截止阀密封副配对结构型式采用球、平面型，密封自动补偿，达到双重保险的效果，密封性能稳定，无粘着磨损，有效地解决了化工管道用普通阀门密封性能差、易泄露的难题。

3.产品中法兰采用榫槽密封结构，即使在管道压力波动的情况下，保证中法兰密封绝对可靠。

4.上密封装置中采用多级聚四氟乙烯密封材料，形成组合密封，确保阀门在使用期限内填料函无介质泄露，消除了普通阀门填料函密封薄弱、介质易外漏，甚至造成事故的可能。

用途--

氨用截止阀结构紧凑，设计合理,通道流畅耐性好,流阻系数小,密封面采用巴氏合金或四氟,使用寿命长,在使用过程中遇到温差幅度变动环境下能自然达到化学处理性能,适用于食品、啤酒、制药、化工、水利等行业冷冻、冷藏系统的氨气、氨液介质的管路中。

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.