dys-20(20a)系列低温升压调压阀dyj-20(20a) low cryogenic pressureregulating valve
此类型专用低温升压调节阀主要用于低温储槽、槽车和罐车的升压系统，广泛用于lng、液态乙烯及其它低温介质，具有密封可靠、动作灵敏、压力稳定可靠和防静电的特点。
this type is special low-temperature step-down regulator is mainly used for lowtemperature storage tank, tank car and tank car step-down system, widely used in lng, ethylene and other low temperature liquid medium, with reliable sealing, action quick, the characteristics of thepressure is stable and reliable, and anti-static.
主要技术参数
main technicalparameters
公称压力/nominal
设计温度/design temperature:-196℃～+80℃
适用介质/applicable medium:lng 、lo2、ln2、lar
连接方式/connection method:螺纹
主要零部件名称main components name 材料materials
阀体/valve body zg0cr18ni9
阀瓣/valve disc hpb59-1
主密封件/main seal ptfe
型号model 主要外形和连接尺寸main form and the connection size (mm) 公称压力nominal pressure 调压范围scope of pressure adjustment
h h1 w1 w2 m （mpa） （mpa）
dys-20 239 192 100 ф133 2-rc¾ pn-4.0 0.2~0.8
dys-20a 255 203 100 ф133 2-rc¾ pn-4.0 0.4~1.6

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