Vertical Check Valve (H42H/W Series)
Model: H42H / H42W
Actuation: Automatic
Connection Type: Flanged, Threaded
Structure Type: Vertical
Sealing Type: Self-sealing
Pressure Range: 1.6 MPa – 4.0 MPa
Nominal Diameter: DN10 – DN200
Material: WCB, Stainless Steel
Design & structural Features:
The stainless steel vertical check valve operates automatically under the flow of the medium, opening and closing the valve disc to prevent reverse flow. Also known as a non-return valve, one-way valve, backflow preventer, or back-pressure valve, this valve is an automatic device primarily used to prevent backflow, protect pumps and motors from reverse rotation, and prevent unintended discharge from vessels.
The valve is designed strictly according to GB12235 standards. The valve disc moves along a central guide in a lift motion, and the bushing is made from materials with excellent wear resistance and low friction coefficient, ensuring smooth and reliable operation. The sealing performance is dependable.
Applications:
Petroleum pipelines
Chemical industry pipelines
Pharmaceutical production systems
Power plants
General industrial piping systems requiring backflow prevention






