Anti-fouling block valve

by:Lianke Valve     2022-08-15
The anti-fouling isolation valve is named according to its application in life, so what is the anti-fouling isolation pump, and what are the applications and needs to be paid attention to? Anti-fouling isolation valve: a check valve installed in various pipeline systems to strictly prevent the backflow of the medium and protect the subsequent medium or equipment from pollution. It consists of two check valves in series and a transition part, which are tightly sealed to ensure that there is no backflow of the medium. Pipeline anti-fouling block valve is a safety device used to prevent backflow pollution of drinking water pipelines to ensure the hygiene and safety of drinking water. Product structure: The safety type anti-fouling block valve is composed of a drainer between two check valves. The upper chamber of the drain is connected to the inlet end of the primary check valve with a high-pressure hose. The first and second level check valves are mainly composed of valve body, valve cover, valve disc, gasket, spring and so on. The drain is mainly composed of valve body, valve cover, diaphragm, valve disc, sealing plate, valve core, valve seat, spring, etc. Ordinary anti-fouling block valve is composed of two check valves in series. Working principle: The anti-fouling isolation valve is composed of two check valves in series. When one of them is damaged, the other one also acts as a seal to prevent backflow. However, after the seals of the two check valves are destroyed at the same time, the check function is lost, the safety and reliability are relatively poor, and the working principle is relatively simple. The anti-fouling block valve is based on the ordinary type with a drain in the middle, so that even if the seals of the two check valves are damaged at the same time, it can also play a role in preventing backflow pollution.
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