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Micro-Open Type Safety Valve
Micro-open type safety valve construction
Micro-open type safety valve chief property and specification
Working temperature |
A21H=200℃ A21W=200℃ A21F-40℃~80℃ |
| Suitable medium | Model A21H: air, ammonia, petroleum gas, water etc. Model A21W: corrosive gases, or liquid. Model A21F: liquefied petroleum |
Micro-open type safety valve dimensions (mm)
| Nominal Diameter DN (mm) |
Dimensions (mm) | ||||
| Do | do | L | L1 | G | |
| 15 | 20 | 12 | 35 | 65 | G5/8" |
| 20 | 25 | 16 | 42 | 76 | G3/4" |
| 25 | 31 | 20 | 50 | 84 | G1" |
| 32 | ZG1 1/4" | 25 | 55 | 85 | G1 1/4" |
| 40 | ZG1 1/2" | 32 | 55 | 84 | G1 1/2" |
| 50 | ZG2" | 40 | 67 | 101 | G2" |
| 65 | ZG2 1/2" | 50 | 76 | 120 | G2 1/2" |
| 80 | ZG3" | 65 | 83 | 135 | G3" |