1Passed ISO9001-2000 2Equipped with drainage 3Cooling medium is repeatedly used 4Used in contaminated or oxygen-deficiet atmo

Self-contained positive pressure compressed oxygen breathing apparatus

HYZ series breathing apparatus is a closed-circuit SCBA used in the contaminated or oxygen-deficient atmosphere, such as mine, fire fighting, chemical industry, petroleum and tunnel and so on. It provides long-time breath for the workers to deal with an emergency and provide disaster relief. It adopts positive pressure principle to supply oxygen, which makes the pressure in the facemask exceed the atmospheric pressure, so it can efficiently stop harmful gas outside from flowing into the facemask, which assure rescues corps safety.

specifications:

Name/title	HYZ4(ZYHS120)
Rated protective time/Duration	≥240minutes(i.e. 2h)
Period of use under moderately severe conditions	1h
Period of use under extremely heavy severe conditions	4h
Rated pressure of the cylinder	20MPa
Rated reserves in the cylinder	540Litres
Oxygen cylinder	540litres at 20Mpa fill
Constant Rate of Flow	1.6±0.2L/min
Demand Valve	≥80 L/min
Bypass Valve	≥80 L/min
Vent Valve Maximum Value	400~700Pa
Bypass Valve Minimum Value	1.40~180 Pa
Inhalation Temperature	≤35
Weight of CO2 Absorbent	1.8kg
Weight	11 kg
Size	470×350×160mm
Weight-fully Charged	14kg

 

 

positive pressure compressed oxygen breathing apparatus