A28W型Spring Loaded Safety Valve适用于工作温度≤200℃有腐蚀性介质的设备或管路上,作为超压保护装置。
Structure and working principle
- This valve consists of valve shell, valve seat, valve stem, valve flap, spring and other parts.
- This valve when not working or not reached the specified working pressure, relying on the pressure of the spring will valve flap tightly pressed on the valve seat to keep it sealed, when the working pressure exceeds the specified working pressure, the valve flap automatically open, to exclude the medium, so that the pressure does not continue to rise, to ensure that the use of safety.
Product Parameters
产品型号 | A28W-16P |
阀体材质 | 304不锈钢 |
公称压力 | ≤1.6Mpa |
适用介质 | 腐蚀性介质 |
适用温度 | ≤200℃ |
Product Size Reference

通径 | do | R | L | L1 | G | ≈H |
DN15 | 10 | 1/2 | 37 | 65 | 3/4 | 196 |
DN20 | 12 | 3/4 | 40 | 70 | 1 | 215 |
DN25 | 15 | 1 | 45 | 78 | 1-1/4 | 233 |
DN32 | 20 | 1-1/4 | 60 | 90 | 1-1/2 | 304 |
DN40 | 25 | 1-1/2 | 67 | 105 | 2 | 325 |
DN50 | 32 | 2 | 76 | 115 | 2-1/2 | 346 |
DN65 | 40 | 2-1/2 | 110 | 145 | 3 | 372 |














