This explanation of the working principle is not idle talk, but to better understand the installation and commissioning of the cylinder valve body. The details are as follows:

After the installation, in order to avoid the influence of some impurities in the valve body, we should clean the valve again. That is to say, after the medium passes through, all valves should be in an open state to prevent impurities from getting stuck in the valves. After we use the handwheel parts, we should restore the product to its original position.