What is the name of the air gun valve?

Usually called "air nozzle" or "air inlet".

Because they are channels for injecting or exhausting gas, similar to the function of the mouth. In an air gun, gas enters the barrel through a nozzle, and then is compressed and released to form a projectile. Therefore, people usually refer to the air nozzle as "inflation port" to cooperate with the operation of air guns.

In the pneumatic control system, the air gun valve is an important component. It is a controllable valve, which regulates the speed and action of pneumatic system by controlling the flow of compressed air. In pneumatic system, air gun valve is usually used to control the on-off action of pneumatic components. According to different application scenarios, its structure and function are different, but its basic principle is similar. In the pneumatic system, the working state of air gun valve and the accuracy of flow regulation play a vital role in the operation of the whole system.