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application

   This safety valve is widely used in food, brewing, beverage, dairy, pure water and other industries.

Technical Parameters

◆Specifications: 1"~2" DN25~DN50

◆Connection method: clamp, thread, flange

◆Maximum positive pressure value: ≤3.2bar

◆Maximum vacuum: ≤-0.9bar

◆Working temperature: -10 ° C to 120 ° C

◆Contact with material: SS304/SS316L

◆Inside surface contact product: Ra≤1.6μm

◆Sealing: EPDM, Silicone Rubber (SI), Fluororubber (FPM)

working principle

When the positive pressure value in the container is greater than the set pressure value of the positive pressure spring of the valve, the valve automatically opens to exhaust the outside of the container. When the positive pressure value in the container is lower than the set pressure value of the positive pressure spring of the valve, the valve is closed; When the vacuum negative pressure value generated in the container is greater than the negative pressure value set by the valve, the valve will automatically open and inhale into the container. When the vacuum negative pressure value in the container is lower than the negative pressure value set by the valve, the valve is closed. The breathing valve can realize the double action of the call and the suction, effectively protecting the safety of the system of the container and the pipeline.