How to choose the cable connector

In cable engineering, the use of cable joints is relatively frequent, and sometimes the problem of a joint is not handled well, which will affect the quality of the entire cable project, and even the progress of the entire cable project. Therefore, the following issues should be paid attention to wh

The working principle of the air vent valve

First, the structure of the ventilation valveThe vent valve is usually composed of a valve body, a valve plate, a spring and a regulating nut. The valve body is the main structure of the ventilation valve, which is divided into two parts: the inner cavity and the shell, and the inner cavity is equip