Fire breathing valve

Security 

● Requirements:ISO16852 、ISO28300   要求

● The whole fire resistance performance test was carried out and the ATEX type of German IBExU was obtained Certification certificates, including：

Product type test certificate

Production process quality system certificate

● The overall flow test was carried out and the flow diagram certified by the third-party qualification agency was obtained

● 100% strict factory inspection

Environment

● R ZETOP  Breather valve near zero leakage technology

●  High sensitivity, low overpressure value 10% airfoil disc patented technology

●  Metal face sealing technology

●  Split stainless steel seat technology

●  High precision grinding technology

National Recognition

● S Technology approved by the Ministry of Ecology and Environment

● Comply with VOCs emission control policies for storage tanks

● In the case of stationary storage tank without pressure relief, the leakage meets the

requirement of GB37822 attached A discharge limit of 20mg/m³

European standard

● Adopts the European breather valve leakage standard,stricter than API2000/ISO28300

● Leakage test pressure ≥85% set pressure

● The maximum allowable leakage value：

Valve size ≤DN150:0.0017m³/h

Valve size DN150-DN300:0.003m³/h