Vertical Check Valve

Vertical check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent the medium from flowing back. It is also called check valve, one-way valve, reverse flow valve, and back pressure valve. Check valve is a kind of automatic valve, its main function is to prevent the back flow of the medium, prevent the pump and drive motor from reversing, and discharge the container medium. Check valves can also be used to supply pipelines for auxiliary systems whose pressure may rise above the system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).
The function of this type of valve is to only allow the medium to flow in one direction and to prevent the flow of direction. Usually this kind of valve works automatically. Under the action of the fluid pressure flowing in one direction, the valve flap opens; when the fluid flows in the opposite direction, the fluid pressure and the self-coincidence of the valve flap act on the valve seat, thereby cutting off the flow.

Vertical check valve: Due to the pressure of the medium at the inlet end of the pipeline, the valve can be opened or closed by overcoming the spring resistance. When the medium pressure at the inlet end is lower than that at the outlet end, the spring pushes the valve core to the valve seat to close the valve, preventing the medium from flowing back, so it plays a role of check. Vertical check valve is widely used in chemical, liquefied petroleum gas, fluid and other industries. According to the structure of the check valve, it can be divided into three types: lift check valve, swing check valve and butterfly check valve.

Size:DN15~DN250

Pressure:1.6~25MPa/Class150-2500/2.0-42.0MPa

Working temperature:-29~+550℃

Materials ：WCB, Cast iron,Alloy steel ,stainless steel ,forged steel

Applicable media: water, oil, steam, acidic media, etc.

On pipelines in various operating conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries, it is a valve that controls the one-way flow of medium in the pipeline, used to prevent medium backflow in the pipeline.

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Application

Water Supply Systems: Used to prevent backflow in water distribution lines and pumping systems.

HVAC Systems: Controls flow direction in heating, ventilation, and air conditioning systems.

Chemical Processing: Ensures unidirectional flow of chemicals in processing lines.

Oil and Gas Pipelines: Prevents backflow in vertical sections of oil, gas, and other fluid pipelines.

Wastewater Treatment: Used in drainage and wastewater systems to prevent reverse flow of contaminated water.

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Product Features

The Vertical Check Valve is a unidirectional valve designed to prevent backflow in piping systems. Installed vertically, it operates automatically, relying on fluid pressure to open and close. This valve type is ideal for systems requiring reliable backflow prevention, especially in vertical pipelines, ensuring continuous and unidirectional flow.

● Compact Vertical Design: Fits easily into vertical pipelines where space is limited.

● Automatic Operation: Operates based on fluid pressure, requiring no manual intervention.

● Low Maintenance: Minimal moving parts, resulting in reduced maintenance requirements and increased reliability.

● Backflow Prevention: Prevents reverse flow effectively, protecting pumps and other upstream equipment.

● Variety of Materials and Seals: Available in multiple materials to handle various fluids and temperatures.

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