Overview of piston full-pressure high-speed exhaust valves.
The piston full-pressure high-speed exhaust valve has a delicate and complex structure, including the lower valve body, the middle valve body, the float, the float rod, the valve core, the cover plate, the piston rod, the diaphragm and the valve cover and many other components. The peculiarity of this exhaust valve is that the pontoon rod can be flexibly rotated around the spindle by the hinge of the pontoon rod to the pin shaft. This design cleverly uses the lifting of the pontoon to control the opening and closing of the valve spool, automating the exhaust and injection of air.
When the pontoon is lowered, it means that the valve is filled with gas, and the spool rises, the small valve port opens, and the exhaust port on the small exhaust cap is closed, allowing the gas to be injected into the hydraulic tank through the conduit. When the pontoon rises under the action of buoyancy, the valve core is lowered, the small valve port is closed, and the exhaust port on the exhaust cap is opened at the same time, so that the gas in the hydraulic tank passes through the conduit to the atmosphere for pressure relief. It is worth mentioning that when the pontoon is lowered and the hydraulic cylinder is filled with gas, the large exhaust port on the valve will automatically close.
This piston full-pressure high-speed exhaust valve has excellent performance parameters and characteristics. It is recognized as the most advanced cylinder exhaust valve available, and its structure and performance surpass ordinary high-speed (double-port) exhaust valves and composite exhaust valves. For the gas in the pipeline, whether it is multiple water columns, gas columns, or various pressure states, it can achieve continuous high-speed discharge. The unique microporous design allows a small amount of gas to pass through, while the float does not press directly against the exhaust port, thus avoiding possible jamming.
In the case of negative pressure in the pipeline, this exhaust valve can also draw in air, which provides a strong guarantee for the safety of the pipeline. It can effectively prevent gas staining, alleviate water hammer boosting, and solve the problem of new pipeline commissioning. For the entire water supply system, it can not only improve safety and reliability, but also reduce pressure** and reduce drag and save energy, making a great contribution to the safe and stable operation of the urban pipe network.