New design of control head ,all of the buckle-fit, which is convenient for installation and disassembly.Can realize the control valve body and head are respectively installed;
2,The exhaust port positioned on the body, is convenient to install muffler to reduce noise and pollution;
3,Operation of diversified forms, a variety of control head, is convenient to use under different conditions;
4,The body has a buffer installation;
5,Multi position installation,and easy to use.