Cast Bronze Check Valve

The KOSEN Forged Piston Check Valves is a valve which is automatically opened and closed by the flow of the medium itself, and is used to prevent the reverse flow of the medium. It is also called a reverse check valve, a one-way valve, a countercurrent valve, and a back pressure valve. The check valve is an automatic valve. Its main function is to prevent the backflow of the medium, prevent the reversing of the pump and drive motor, and the discharge of the container medium. The check valve can also be used to supply pipelines where the pressure may exceed the system pressure. Check valves can be divided into swing check valves (with center of gravity rotation) and lift check valves (along the axis).

The KOSEN Axial flow Check Valve is composed of valve body, valve seat, guide body, disc, bearing and spring. The internal flow path is streamlined design, the pressure loss is small, the valve opening and closing stroke is very short, the pump can be closed quickly when the pump is stopped, so as to prevent the sound of the huge water hammer and form the silent effect. The valve is mainly used in water supply, drainage, fire fighting, HVAC, petrochemical, electric and other industrial projects. It can be installed at the outlet of the pump to prevent the reverse flow of medium and the damage to the equipment by water hammer.

The product is composed of valve body, guide body, axial movement valve disc and spring component. The product can effectively prevent the reflux of the medium. Ensure the safety of the pipeline. The valve body, disc and tail are designed as streamlined passageways with good fluid performance, minimizing flow resistance and pressure. Using high performance spring material HT/INCONELX-750, it has excellent corrosion resistance, antioxidant and excellent mechanical properties, and ensures the running state of the spring under the long working condition. Mute operation eliminates noise and water hammer in valve piping to ensure safety of equipment and piping. The opening and closing reaction is fast, and the high reliable preload spring enables the disc to respond quickly to the change of fluid pressure. Compact structure, convenient installation, vertical and horizontal installation. The valve is made of alloy steel overlaying welding cover, wear-resistant, corrosion resistant and long life.

KOSEN Investment Casting Screwed Check Valves is used to prevent back flow in the line .Flow is in a straight line through the valve resulting in minimal pressure drop . The disc swings into the open position as the media flows through the line .Back pressure in the line holds the disc in the closed position .
KOSEN Investment Casting Screwed Check Valves may be installed in horizontal or vertical lines ,but must be installed in proper relation to the media flow as indicated by the flow direction arrow marked on the body .