Control Valve Flow To Open And Flow To Close

According to the different flow direction, the Control Valve can be divided into flow to open type and flow to close type.

Flow to open type: The force of the medium pushes the plug of the valve away from the seat sealing surface (the flow direction of the medium promotes the opening of the valve).

Flow to close type: The force of the medium pushes the plug of the valve close to the seat sealing surface (the flow direction of the medium promotes the closing of the valve).