● It has the function of an isolation valve. If necessary, the pipe can be stopped before maintenance. It is more convenient to operate with a wrench on the top of the valve stem. 

● Our V-ring and gland design can be replaced under pressure.  

● The main and auxiliary air outlets can release large displacement and can release large amounts of air quickly.

● The two float balls can be made of ABS or stainless steel with the same diameter for easy replacement and maintenance.     

● There is a spare bypass orifice plate, which can be equipped with a pressure gauge or other components.  

● The threaded drain port design can remove pipe residues, and it has good sealing and easy disassembly.