During emergency or abnormal shutdown conditions, it ensures the venting of two gases (H₂/0₂) with different densities under predetermined pressure differentials without requiring any external intervention. The operational principle involves active discharge of higher-density gas and passive discharge of lower-density gas. Safety isolation is achieved through dual-layer high-pressure diaphragms, guaranteeing absolute safety even in the event of diaphragm damage.

Key parameters: 

-Pressure range: 0-5 MPa 

-Nominal diameter: 1/4" 

-Maximum temperature resistance: 200°C