DIN High Pressure Self Sealing Swing Check Valve

DIN Pressure Seal Swing Check Valve is suitable for various pipelines with working temperatures ranging from -29 to +425℃ (carbon steel), -29 to +650℃ (chromium-molybdenum steel), and -40 to +500℃(stainless steel).

Working principle:

DIN Pressure Seal Swing Check Valve is a type of valve that automatically opens and closes the valve disc based on the flow of the medium itself, used to prevent the backflow of the medium. It is also known as a non-return valve, one-way valve, backflow valve, and back pressure valve. It belongs to a kind of automatic valve.   It can also be used on pipelines to supply auxiliary systems where the pressure may rise above the system pressure. It can mainly be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).

Advantage of pressure seal

Their wedge design tightens automatically as system pressure increases, preventing leaks. They require no external force for sealing, reduce flange stress, simplify maintenance, and perform reliably in high-pressure/temperature systems like power plants and refineries.

Structural Features:

1. Carefully selected materials, in compliance with domestic and international relevant standards, with high overall material quality.

2. The products are manufactured in accordance with the requirements of German standards DIN3352 and DIN3230.

3. Various pipe flange standards and flange sealing types can be adopted to meet the needs of various projects and user requirements.

4. The valve body materials are complete in variety, and the gaskets can be reasonably selected according to the actual working