Gas Specific Fall Lift Safety Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Gas specific fall lift safety valves
Applications
Gas specific full lift safety valve is suitable for equipments and pipes of natural gas, liquefied petroleum gas, ammonia, etc., and similar non-corrosive media that working temperature is -40 ~ +80 ℃. When the device internal medium pressure is abnormal elevation of the required value, the gas specific full lift safety valve automatically opens, and then with the whole amount of emissions, when the pressure is reduced to the specified value, the gas specific full lift safety valve automatically closes to ensure safe operation of gas pipeline equipments.
Dimensions & constructral diagram
Gas specific fall lift safety valve constructral diagram
The materials of main parts
| NO. | part name | A42F Materials |
| 1 | Seat | 2Cr13 |
| 2 | Body | WCB |
| 3 | Adjusting ring | 2Cr13 |
| 4 | Disc holder | 2Cr13 |
| 5 | Disc | 2Cr13+PTFE |
| 6 | Guide sleeve | 2Cr13 |
| 7 | Bonnet | ZG230-450 |
| 8 | Spring | 50CrVA |
| 9 | Stem | 2Cr13 |
| 10 | Adjusting bolt | 45 |
| 11 | Cap | ZG200-450 |
External and connection dimensions(mm)
| Nominal diameter DN(mm) | Dimensions(mm) | |||
| do | L | L1 | DN | |
| 25 | 15 | 110 | 95 | 32 |
| 32 | 20 | 115 | 100 | 40 |
| 40 | 25 | 120 | 110 | 50 |
| 50 | 32 | 135 | 120 | 65 |
| 80 | 50 | 170 | 135 | 100 |
| 100 | 65 | 195 | 175 | 125 |
| 150 | 100 | 255 | 230 | 175 |
| 200 | 125 | 300 | 260 | 250 |
