Spring Full Open Safety Valve
Specifications: DN15 to DN50
The pressure operating range can be adjusted by changing the spring
Connection method: welding, clamp, thread, flange
Working pressure: 16bar, 25bar, 40bar, 64bar
Specifications: DN15 to DN50
The pressure operating range can be adjusted by changing the spring
Connection method: welding, clamp, thread, flange
Working pressure: 16bar, 25bar, 40bar, 64bar
Working temperature: -10℃ to 120℃ (140℃ for short period or disinfection)
Material: 304/316L
Inner surface contact product: Ra≤0.8μm
External surface treatment: polishing
Seal: EPDM (ethylene propylene diene monomer), PTFE (polytetrafluoroethylene)
Starting pressure: 0.1bar - 10bar optional
Application
A27W/Y type is suitable for equipment and pipelines with water, air, steam and other media with working temperature ≤ 200℃. A27Y-P/R type is suitable for equipment or pipelines with corrosive media with working temperature < 200℃ as an overpressure protection device.
Main connection dimensions
 |
Nominal diameter DN |
Size | |||||
| DN | do | R | L | L1 | G | ≈H | |
| 15 | 13 | 1/2" | 32 | 53 | 1/2" | 158 | |
| 20 | 18 | 3/4" | 35 | 60 | 3/4" | 170 | |
| 25 | 22 | 1" | 39 | 65 | 1" | 186 | |
| 32 | 28 | 1 1/4" | 46 | 80 | 1 1/4" | 202 | |
| 40 | 38 | 1 1/2" | 50 | 86 | 1 1/2" | 252 | |
| 50 | 38 | 2" | 55 | 95 | 2" | 286 | |
Application
A28W/Y type is suitable for equipment and pipelines with medium such as air, steam, water, ammonia hydrogen mixture and working temperature <200℃. A28W-P/R type is suitable for equipment or pipelines with corrosive medium with working temperature ≤200℃ as overpressure protection device.
Main connection dimensions
 |
Nominal diameter DN |
Size | |||||
| DN | do | R | L | L1 | G | ≈H | |
| 15 | 13 | 1/2" | 35 | 60 | 3/4" | 171 | |
| 20 | 18 | 3/4" | 42 | 67 | 1" | 190 | |
| 25 | 22 | 1" | 48 | 73 | 1 1/4" | 197 | |
| 32 | 28 | 1 1/4" | 53 | 92 | 1 1/2" | 258 | |
| 40 | 38 | 1 1/2" | 53 | 101 | 2" | 264 | |
| 50 | 38 | 2" | 71 | 114 | 2 1/2" | 325 | |
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