Spring full bore type with lever safety valve
A28H-10C, A28Y-10P, A28Y-16P, A28Y-25P, A28Y- 40P
A28Y-16C, A28Y-16R, A28Y-25R, A28Y-40R
A28H type are used for the equipment and pipeline of the air,N2,H2 mixed gas vapor etc. medium what the working temperature are less than 200℃.A28Y-P/10R8 type are used for the equipment and pipeline of the quality with corrode medium what the working temperature are less than 200℃.Take for extra pressure protection devices.