Using compressed airfoamsystem and drainage apparatus, the drainage process of compressed airfoam with typical protein based class a agent was studied under the concentration range of 0.
The paper introduces the parts and operating principle of the compressed air class A foamsystem and gets some conclusions about the application theory of the system through test.
In order to solve the two problems, the formulation of foam was optimized. The adoption of circularing foamsystem equipment made foam be used many times but air can be emitted into atmosphere .