Twa21 is a vent safety valve with external thread connection, which is designed, manufactured and inspected according to GB / t12241-12243. It is applicable to the equipment and pipeline of air, natural gas and other media. The main feature of the valve is that a pressure storage tank is added around the sealing surface of the valve seat, which makes the valve discharge capacity stronger, and the valve rod structure is used to make the valve reset more stable after opening.

Specification: dn10 ~ 40

Pressure class PN16 ~ 160

Throat diameter: 6-25mm

Temperature range ≤ 200 ° C