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classification
add：no.93 xianle road, zhujing town, jinshan district, shanghai
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.
nominal pressure:4.0mpa
design temperature:-196℃～ 80℃
applicable medium:lng 、lo2、ln2、lar
connection method:the screw thread
| main components name | materials |
| valve body | zg0cr18ni9 |
| valve disc | hpb59-1 |
| main seal | ptfe |
| model | main form and the connection size (mm) | nominal pressure | 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 |