A47 is an open micro open safety valve with spanner spring. Design, manufacture and inspection according to GB / t12241-12243. It is suitable for equipment and pipeline of steam, air and other media.

Specification DN32 ~ 100

Pressure class PN16 ~ 100

Throat diameter 20-80mm

Temperature range ≤ 350 ° C

Flange standards JB / t79, hg20592, GB / t9113