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Special Full-Lift Safety Valve For Gas
ModelA42F
Special full-lift safety valve for gas applications
The valve is used in equipments and pipelines of natural gas, liquefied petroleum gas, ammonia and other mediums with opera-ton temperature -40~+80℃. The medium pressure in the equipment rises to the regulated value; the valve will open automatically and fully discharge, then close again when the pressure lowered to the regulated value so as to ensure safe operation of the equip-mint.
Special full-lift safety valve for gas brief figure of structure
Special full-lift safety valve for gas dimensions (mm)Top of page
| Nominal Diameter DN (mm) |
Dimensions (mm) | |||
| d0 | 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 |
A42F-16/25/40C 175 |
| 200 | 125 | 300 | 260 | 250 |
No. |
Name of part | A42F Materials |
| 1 | Nozzle | 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 | ZG200-400 |
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