(1) Overview: 
 For gas drainage and use of system charge, stem, branch slagging slagging installations of gas drainage pipeline necessary; must be installed in the copper an intensive anti-tempering device and explosion-proof before use Lan connection with the piping or other equipment; the device through a classification screen bezel blocking and precipitation pipeline cinders, stones and other debris, purify the air; to protect the safety of the gas drainage equipment. 
 (2) Specification: 
 Corresponding import and export diameters of DN150 ~ of DN1000.