Spring micro-opening closed safety valve are devices used to cut off, connect, and regulate the medium in pipelines. Unlike general fully open Spring micro-opening closed safety valves can automatically close after pressure relief without manual resetting, with a maximum opening height of 1/4 of the inner diameter.
Product Model : A41H / Y
Nominal Diameter : 20-250 mm
Nominal Pressure : 1.6-4.0 MPa
Applicable Temperature : -29 degree -300 degree
Spring micro-opening closed safety valves mainly consist of springs, valve bodies, valve covers, and valve cores. They control the opening and closing of the valve based on the elasticity of the spring and the pressure of the medium. When the medium pressure exceeds the set pressure, the valve core is pushed away, allowing the medium to be discharged; when the pressure drops below the set value, the spring pushes the valve core back, closing the valve.
Spring micro-opening closed safety valves are suitable for equipment or pipelines with working temperatures Less than or equal to 200 degree for air, nitrogen-hydrogen mixtures, etc. Due to their simple structure, good sealing performance, accurate opening pressure, and other features, they are widely used in industrial applications requiring precise pressure control.
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