Pipeline anti-break valve, commonly known as explosion-proof valve, is an automatic protection device for excess flow. The descending speed is less than 10% of the original descending speed. Let's understand the working principle of the one-way anti-pipeline crushing valve!

The use of the crushing valve can effectively prevent the occurrence of unexpected situations such as pipeline rupture, pipe joint falling off, and hydraulic locking failure in the hydraulic system. It has the characteristics of simple structure, fast response, convenient control, safety and reliability. widely used.

When the pressurized pipeline or pipe joint ruptures, the hydraulic system loses back pressure, and the loaded hydraulic transmission device accelerates and falls uncontrollably. This uncontrolled movement can be prevented by using a one-way line explosion-proof valve. Structure diagram and graphic symbols of one-way pipeline explosion-proof valve. This kind of crushing valve is a flat valve. Under the natural state, the valve plate leaves the valve seat under the action of elastic force, and the valve port maintains a certain opening degree.

When the water flows from b to f, due to the flow resistance, when the pressure difference of the valve port is working normally, it will not exceed the elastic force, the valve port is open, and the hydraulic oil can flow normally. When the f-side pipeline ruptures, the flow from b to f increases sharply, when the flow resistance through the orifice exceeds the elastic force, the spool is closed immediately, and the load stays at the position at the moment of the pipeline rupture, before the normal pressure is restored on the f-side , the flow cannot flow normally.

The crush valve provides a burst valve that can increase the opening area. The rupture valve according to one aspect of the patented technology of the present invention is formed on the wall of the container, and is ruptured and opened when the internal pressure in the container rises. A plurality of dividing lines of the opening area, the outer edge line has a first base line and a second base line, and the discontinuous first base line and the second base line are formed in the fractured portion forming the first base line in the first direction, from the first base line to the first base line. The first support portion extending from the two base lines forms a line, and the second support portion is formed on the fractured portion of the second base line, extending from the second base line toward the first base line

Such a crushing valve needs to be directly installed at the pressure oil inlet of the hydraulic cylinder. If it is installed in the middle of the pipeline, when the pipeline between the actuator and the explosion-proof valve is ruptured, it will not play a protective role.

The above is the working principle of the one-way anti-pipeline crushing valve. If you want to know more about the one-way anti-pipeline crushing valve, you can contact us at any time! The customer service is always online to provide you with services, and you are welcome to join us at any time!