The A48W/Y spring-loaded full-lift safety valve is suitable for equipment or pipelines handling corrosive media at operating temperatures ≤200°C, serving as an overpressure protection device.
Working Principle
When the pressure in the equipment and pipeline exceeds the permissible value, the valve automatically opens and then discharges the full amount; when the pressure drops to the specified value, the valve automatically closes to ensure the safe operation of the equipment and pipeline.
Product Parameters
Product Model | A48Y-16P |
Valve body material | 304 Stainless Steel |
Nominal pressure | ≤1.6Mpa |
Applicable medium | Corrosive Media |
Applicable temperature | ≤200℃ |
Product Size Reference

Nominal Diameter | do | DN | L | L1 | ≈H |
DN20 | 15 | 25 | 110 | 95 | 306 |
DN25 | 16 | 32 | 110 | 95 | 306 |
DN32 | 20 | 40 | 115 | 100 | 309 |
DN40 | 25 | 50 | 120 | 110 | 323 |
DN50 | 32 | 65 | 135 | 120 | 333 |
DN65 | 40 | 80 | 160 | 140 | 420 |
DN80 | 50 | 100 | 170 | 135 | 432 |
DN100 | 65 | 125 | 205 | 160 | 553 |
DN125 | 80 | 150 | 210 | 190 | 639 |
DN150 | 100 | 175 | 255 | 230 | 654 |
DN200 | 125 | 250 | 305 | 260 | 797 |
DN250 | 150 | 300 | 350 | 320 | 998 |
DN300 | 220 | 400 | 370 | 350 | 1246 |
DN350 | 250 | 500 | 500 | 450 | 1711 |
DN400 | 280 | 500 | 500 | 450 | 1780 |














