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add：no.93 xianle road, zhujing town, jinshan district, shanghai
this type is special low temperature lift check valve is suitable for low temperature storage tank, tank car and tank car to prevent the reverse medium, is widely used in lng, ethylene and other low temperature liquid medium, has the characteristics of the sealing is reliable.
nominal pressure:4.0mpa
design temperature:-196℃～ 80℃
applicable medium:lng 、lo2、ln2、lar
connection method:插焊
nominal diameter:10mm～50mm
| main components name | materials |
| valve body | zg0cr18ni9 |
| valve disc | 0cr18ni9ti |
| main seal | ptfe |
| model | main form and the connection size (mm) | weight（kg） | |||||
| h | l | d0 | d1 | d2 | b | weight | |
| dh-10p | 56 | 60 | ф13 | ф14.5 | ф24 | 6 | |
| dh-15p | 62 | 65 | ф15 | ф18.5 | ф29.5 | 6 | 0.7 |
| dh-20p | 71 | 80 | ф20 | ф25.5 | ф36 | 8 | |
| dh-25p | 78 | 90 | ф25 | ф32.5 | ф43.5 | 8 | 1.4 |
| dh-32p | 90 | 105 | ф32 | ф38.5 | ф53 | 8 | |
| dh-40p | 99 | 120 | ф40 | ф45.5 | ф62 | 8 | 2.86 |
| dh-50p | 112 | 140 | ф50 | ф57.5 | ф72 | 10 | 4.35 |