A22 is a spring full open safety valve with external thread connection. Design, manufacture and inspection according to GB / t12241-12243. It is suitable for equipment and pipeline of air, steam, water, nitrogen hydrogen mixture and corrosive medium.

Specification: dn10 ~ 80

Pressure class PN16 ~ 40

Throat diameter 10 ~ 50mm

Temperature range ≤ 200 ° C