Mini Grease Gun: The Role and Importance of the Air Screw

In the daily operation of lubrication equipment, the mini grease gun has become an indispensable tool for many engineers and technicians due to its portability and efficiency. However, when using a mini grease gun to add grease, an often overlooked but crucial detail is the role of the air screw. This article will explore in detail the function of the air screw in the mini grease gun and its importance in ensuring smooth flow of grease and reducing the generation of bubbles.

1. Basic Function of Air Screw
Mini grease guns are usually equipped with an air screw, which plays a key role in the lubrication process. When grease is pumped from the oil tank into the pipeline and eventually into the equipment that needs lubrication, there may be air or other gases in the pipeline, which will hinder the smooth flow of grease, resulting in poor lubrication and even possible damage to the equipment. The role of the air screw is to exhaust the air in the pump body and pipeline before or during the filling of grease to ensure the purity and smooth flow of grease.

2. The Importance of Air Screw
Ensure smooth flow of grease: By exhausting the air in the pump body and pipeline, the air screw can reduce the resistance of grease flow and ensure that grease can smoothly enter the equipment that needs lubrication. This is essential to maintain the normal operation of the equipment and extend its service life.
Reduce the generation of bubbles: The presence of air not only affects the fluidity of butter, but also may cause the generation of bubbles. These bubbles may hinder the contact between butter and the surface of the equipment during the lubrication process, thereby reducing the lubrication effect. The vent screw can effectively reduce the generation of bubbles and improve the lubrication efficiency.
Improve the lubrication effect: By ensuring the smooth flow of butter and reducing the generation of bubbles, the vent screw can significantly improve the lubrication effect. This helps to reduce the wear and failure rate of the equipment and improve the operating efficiency and reliability of the equipment.
3. How to use the vent screw

Before using the mini grease gun to fill butter, you should open the vent screw first, press the grease gun gently several times, and exhaust the air in the pump body and pipeline. Then close the vent screw and start filling butter normally. During the filling process, if you find that the butter does not flow smoothly or bubbles are generated, you can open the vent screw again for exhaust operation.

The vent screw plays a vital role in the mini grease gun. It ensures the smooth flow of butter and reduces the generation of bubbles by exhausting the air in the pump body and pipeline, thereby improving the lubrication effect and the operating efficiency of the equipment. Therefore, when using the mini grease gun, we should pay full attention to the role of the vent screw and operate it correctly to ensure the normal operation of the equipment and extend its service life.