Check Valve Series

H74 wafer check valve

The H74 thin wafer swing check valve is an ultra - thin model, characterized by its simple structure, sleek look, lightweight build, and easy installation. It is widely applicable in water supply systems and key industries such as petroleum, chemicals, and metallurgy.

H41H Lift Check Valve

The H41H flanged lift check valve excels in demanding industrial applications. Rated for PN1.6 - 6.4MPa and -29℃ to 550℃, it handles water, oil, and steam across petroleum, chemical, and power sectors. Key features: - Superior Sealing: Valve disc and seat, surfaced with iron - based or Stellite cobalt - alloy, resist wear, heat, corrosion, and galling for long - term reliability. - Flexible Compatibility: Compliant with GB/T12235 standard, it offers diverse flange options and sealing types, ensuring seamless integration into various projects. - Versatile

YZL48H Axial Flow Check Valve

1. Monolithic structure, light - weight, good rigidity, easy to maintain. 2. Spring thrust keeps the valve disc closed even without medium pressure. 3. Excellent support ensures valve disc and seat alignment at any installation angle. 4. Streamlined design results in low - loss, stable flow and low - noise operation. 5. Special design prevents jamming and ensures good sealing. 6. Spring design allows low - pressure sealing and opening, protecting pumps.

American Standard Wafer Check Valve

A check valve, also called non - return/one - way valve, automatically opens and closes via medium flow to stop backflow. It protects pumps, prevents container leakage, and is used in auxiliary systems. Main types include swing (rotating) and lift (axial - moving) check valves.

H44 Swing Check Valve

The H44 swing check valve adopts an internally installed rocker arm swing structure. All the opening and closing components are installed inside the valve body. Except for the sealing at the middle flange, there are no external leakage points, which completely eliminates the risk of leakage. The spherical connection between the rocker arm and the valve disc endows the valve disc with the ability to move freely within a 360° range and to have a small amount of position compensation. The sealing surfaces of the sealing pairs are overlaid with alloy steel (13Cr) or Stellite 6 hard alloy.

American Standard Check Valve

The American Standard check valve refers to a valve that automatically opens and closes its disc relying on the flow of the medium itself to prevent the backflow of the medium. It is also known as a non-return valve, one-way valve, backflow valve, and backpressure valve. A check valve belongs to a type of automatic valve, and its main functions are to prevent the backflow of the medium, prevent the reverse rotation of pumps and their driving motors, and prevent the discharge of the medium from containers.