一、Introduction:
With the continuous development of the city, many high-rise buildings have sprung up, and water supply pipelines have become one of the main considerations. When there are many high-rise buildings without water or in normal use, due to the structure of the secondary water supply, rust water, stagnant water, and sewage will appear. At this time, if there is a backflow, it will greatly pollute the normal residential water and affect health and safety. The same, In the food or pharmaceutical manufacturing industry, a safe and reliable water supply is needed. At this time, the anti-fouling shutoff valve is very important.
The anti-fouling shutoff valve is a non-return valve installed in various pipeline systems to strictly prevent the back flow of the medium and protect the subsequent medium or equipment from contamination. Composed of two check valves in series and a transition part, tightly sealed to ensure that there is no backflow of the medium. The pipeline anti-fouling shutoff valve is used to prevent drinking water pipelines.
二、Working Principle:
The anti-fouling shutoff valve is a kind of hydraulic control valve. It is a combination of two check valves connected together, which has the effect of cleaning and check from two aspects. When the fluid flows forward in the normal direction, the valve flap will be opened. If there is a reverse flow, the fluid will react against the valve flap and press the valve flap hard. The greater the pressing force, the tighter the valve flap will be closed. When one of the check valves leaks, the other can also play a protective role.
Post time: May-26-2025