Product Description 
 ZYJ pressure self-help is one of the coal and gas outburst mine safety protection measures, it is a fixed permanent self-rescue equipment for coal and Watts and Adams prominent coal mine disaster protection, installed in the refuge cavern Some work places and the mobility of the roadway, can also be installed in the tunneling and mining face. When the coal and gas outburst or highlight portentously appears, the staff can conveniently enter the self-rescue device, open the pressure valve for disaster prevention. The number of workers who are self-rescue device by certain pressure gas constitute a group, each group head groups generally from 3 to 5, every assembly of the number of heads, the workplace should be considered depending on the number of installed head should be greater than the number of people working in that place. The device system is simple, cheap, is an economical permanent self-help device system. The implementation of standards: MT 390-1995 "the mine pressure self-help device technical conditions" 
 Technical parameters 
 Pressure air supply pressure: 0.3 ~ 0.7MPa 
 Adjustment range of the output pressure: 0.09MPa 
 Air consumption of a single device: 150 ~ 200L/min 
 Gas supply mode: connect pressure air system or a separate gas distribution station (ground) 
 Vacuum noise: ≤ 85dB 
 Operating modes: manual adjustment, operation 
 Weight: 0.5kg