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 low temperature 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 the pressure is stable and reliable, and anti-static.
主要技术参数
Main technical parameters
公称压力/Nominal pressure:2.5MPa
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
|
0Cr18Ni9Ti
|
|
主密封件/Main seal
|
PTFE或PCTFE
|
|
调节螺杆/Valve stem
|
OCr18Ni9
|
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
|
D
|
B
|
（MPa）
|
（MPa）
|
|
DYS-25P
|
256
|
272
|
Ф32.5
|
10
|
2.5
|
0.2~0.8
|
|
DYS-25P/A1
|
256
|
272
|
Ф32.5
|
10
|
2.5
|
1.2~3.0
|
|
DYS-25P/A2
|
256
|
272
|
Ф32.5
|
10
|
2.5
|
0.8~1.6
|