J41BAmmonia globe valveWith stable sealing performance, safe and reliable use, strong corrosion resistance, no media leakage and lightweight operation, it has successfully solved the problem of poor corrosion resistance, easy to perforate the shell and poor sealing performance and easy to leakage of ordinary valves for chemical pipelines. Especially suitable forchemical industryAmmonia, gas pipeline transmission, and to meet the requirements of long-term reliable use, its sealing, repairability, safety and so on. Widely used in freezing, refrigeration, chemical, petroleum, food, smelting, liquefied gas and other industries.
Product Features
- 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(低温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。
- 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。
- 产品中法兰采用凹凸密封结构,即使在管道压力波动的情况下,保证中法兰密封绝对可靠。
- 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。
Product Parameters
产品型号 | J41B-25C |
阀体材质 | 铸钢 |
公称压力 | ≤2.5Mpa |
适用介质 | 氨气、氨液等 |
适用温度 | ≤150°C |
Product Size Reference

DN | L | D | D1 | D2 | D6 | b | f | f1 | z-d |
15 | 130 | 95 | 65 | 45 | 40 | 16 | 2 | 4 | 4-14 |
20 | 150 | 105 | 75 | 55 | 51 | 18 | 2 | 4 | 4-14 |
25 | 160 | 115 | 85 | 65 | 58 | 18 | 2 | 4 | 4-14 |
32 | 180 | 135 | 100 | 78 | 66 | 20 | 2 | 4 | 4-18 |
40 | 200 | 145 | 110 | 85 | 76 | 20 | 3 | 4 | 4-18 |
50 | 230 | 160 | 125 | 100 | 88 | 22 | 3 | 4 | 4-18 |
65 | 290 | 180 | 145 | 120 | 110 | 24 | 3 | 4 | 8-18 |
80 | 310 | 195 | 160 | 135 | 121 | 26 | 3 | 4 | 8-18 |
100 | 350 | 230 | 190 | 160 | 150 | 30 | 3 | 4.5 | 8-23 |
125 | 400 | 270 | 220 | 188 | 176 | 32 | 3 | 4.5 | 8-25 |
150 | 480 | 300 | 250 | 218 | 204 | 32 | 3 | 4.5 | 8-25 |
200 | 600 | 360 | 310 | 278 | 260 | 34 | 3 | 4.5 | 12-25 |
250 | 650 | 425 | 370 | 335 | 310 | 36 | 3 | 4.5 | 12-30 |
300 | 750 | 485 | 430 | 390 | 364 | 40 | 3 | 4.5 | 16-30 |