Lift Type Check Valve

The Lift Type Check Valve is a common valve type, mainly used to prevent the medium from flowing back in the pipeline and ensure the one-way flow of the fluid. It realizes automatic opening and closing through the deadweight of the valve disc or the pressure of the medium, and is widely used in pipeline systems of water, steam, oil and other media. The following is a detailed introduction to the Lift Type Check Valve:

Working Principle：

The valve disc (also called the valve disc) of the Lift Type Check Valve moves up and down along the vertical center line of the valve body. When the medium flows forward, the medium pressure pushes the valve disc up and the valve opens; when the medium stops flowing or flows in the reverse direction, the valve disc drops under the action of deadweight or reverse pressure, closing the valve, thereby preventing the medium from flowing back.

Product Features：

• Simple structure and easy maintenance

The Lift Type Check Valve has a compact structure, fewer parts, easy installation and disassembly, and easy maintenance.

• Good sealing performance

The valve disc and the valve seat adopt metal sealing or soft sealing structure, with excellent sealing performance, which can effectively prevent medium leakage.

• Low flow resistance design

When the valve disc is open, the medium flow resistance is small, which is suitable for systems with high pressure loss requirements.

Automatic opening and closing, no external power required

Relying on the medium pressure and the valve disc's own weight to achieve automatic opening and closing, no additional control device or power source is required.

• Wide range of application

Applicable to a variety of media such as water, steam, oil, etc., and can also be used in high temperature and high pressure conditions.

• Nominal diameter (DN): DN15-DN600 (customizable according to needs)
• Pressure level (PN): PN10-PN160 (or higher pressure level)
• Applicable temperature: -20°C to 550°C (depending on the material)
• Valve body material: cast iron, carbon steel, stainless steel, alloy steel, etc.
• Sealing material: metal seal, rubber, polytetrafluoroethylene (PTFE), etc.
• Connection method: flange connection, threaded connection, butt welding connection, etc.

• Medium characteristics

Select appropriate valve body material and sealing material according to the corrosiveness, temperature, pressure, etc. of the medium.

• Installation direction

The Lift Type Check Valve must be installed vertically to ensure that the valve disc can be closed smoothly by its own weight.

• Flow and pressure requirements

Select the appropriate diameter and pressure level according to the flow and pressure of the pipeline system.

• Special working conditions

For high temperature, high pressure or corrosive media, special materials or custom designs are required.

• Regularly check the sealing surface of the valve disc and valve seat to ensure no wear or damage.
• Clean the inner cavity of the valve body to prevent impurities from accumulating and affecting valve performance.
• For high temperature or corrosive media, the sealing material or valve disc needs to be replaced regularly.

The Lift Type Check Valve is an efficient and reliable valve that is widely used in various pipeline systems. It can effectively prevent the backflow of media and protect the safe operation of equipment and pipeline systems. If you have special needs, you can also customize the design and selection according to the working conditions.

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