Fixed breathing valve

application

This safety valve is widely used in industries such as food, brewing, beverages, dairy products, and pure water.

technical parameter

◆ Specification: 1"~ 2" DN25~DN50

Connection method: clamp, thread, flange

Maximum positive pressure value: ≤ 3.2bar

Maximum vacuum degree: ≤ -0.9bar

Working temperature: -10 ℃ to 120 ℃

◆ Part in contact with materials: SS304/SS316L

◆ Internal surface contact product: Ra ≤ 1.6 μ M

◆ Seals: EPDM, SI, FPM

operational principle

When the positive pressure value inside the container is greater than the set pressure value of the valve positive pressure spring, the valve automatically opens to exhaust outside the container. When the positive pressure value inside the container is lower than the set pressure value of the valve positive pressure spring, the valve is in a closed state; 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 generated in the container is lower than the negative pressure value set by the valve, the valve is in a closed state. This breathing valve can achieve dual functions of exhalation and inhalation, effectively protecting the system safety of containers and pipelines.