A42d and 48D are Japanese standard series safety valves. It is applicable to the equipment and pipeline of petroleum gas, air, water, steam, corrosive and other media.

Specification DN20 ~ 200

Pressure level 1.6 ~ 4MPa

Throat diameter 10-146mm

Temperature range - 196 ° C ~ 538 ° C

Flange standard jisb2213, b2214