About Pneumatic Fitting product selection and confirmation Pneumatic Fitting is a type of quick coupling that uses pressure to actuate and is ideal for automated test connections because it can be used without human intervention. With the rapid development of industrial technology and the replacement of manual operation by automation, the application area of Pneumatic Fitting is becoming more and more popular, and WENZHOU ANGRUI MACHINER Co. ANGRUI has formed a comprehensive pneumatic product line with Pneumatic Fitting as the starting point, which has made ANGRUI brand recognized by many equipment manufacturers. Many people also call Pneumatic Fitting quick coupling and quick release coupling. Although the names are different, as long as you master the basic three points, you can judge the coupling and select the type. Here are some answers.