Welding check valve

The sanitary welding check valve is made of SUS304 and 316L, which can meet the special requirements of various media in the fields of food, medicine, beverage, beer, dairy, biology, and fine chemical engineering. Its quick installation setting is also very suitable for on-site cleaning needs. Technical Specifications:

Standards: ISO, DIN, IDF, SMS

Material: Stainless steel 304 and 316L
Quality: High grade polishing equipment is used for processing both inside and outside, achieving the required surface precision
Sealing rings: EPDM, NBR, PTFE
Packaging: cardboard/wooden box packaging/plastic
Work pressure: 1.0Mpa
Working temperature: -10 ℃ 150 ℃
Application scope: Food, beverages, pharmaceuticals, dairy products, beer, and fine chemicals
Shell material: stainless steel 304, 316L

Hygienic gradeWelding check valveworking principle

When the pressure at the lower part of the valve stem exceeds the pressure above the valve stem and the spring force, the check valve opens. When the pressure on the valve stem is balanced, the valve will close. A higher reverse pressure will act on the valve stem to close it.The working principle of a check valve is that it does not require external control and is a fluid controlled valve. When the fluid pressure is greater than the suction pressure of the spring, the valve automatically opens. When the two forces are equal or the fluid pressure is less than the spring pressure, the valve closes. A higher reverse pressure can also cause the valve to close. Due to the pressure of the medium at the inlet end of the pipeline, the valve is opened or closed by overcoming the resistance of the spring. When the pressure of the medium at the inlet end is lower than that at the outlet end, the spring pushes the valve core towards the valve seat, causing the valve to close and preventing the medium from flowing back, thus playing a check function.