Na-hyz4 positive pressure oxygen respirato

  Features and uses of positive pressure oxygen respirator: features: hyz4 isolated positive pressure oxygen respirator is a new type of respirator for personal respiratory protection   Substitute products
In the case of being isolated from the outside world, it can ensure that the supply of oxygen is completely matched with the human vital capacity
It has the characteristics of smooth circulating gas path, stable and sufficient oxygen supply, * timely supply, comfortable wearing belt, etc; It is widely recognized for its small respiratory resistance, small weight and volume, long protection time, high stability and reliability, simple structure, convenient disassembly and maintenance, etc

Purpose: This respirator is mainly applicable to the necessary respiratory protective equipment for mine rescue personnel, rescue and relief personnel, fire fighters, and all kinds of personnel working in toxic and harmful gas environment

  Main technical indicators:
Effective protection time: 4H (medium labor intensity)
Rated working pressure of oxygen cylinder: 20m pa
Oxygen cylinder volume: 2
4L
Oxygen storage capacity: 480L
Filling amount of calcium hydroxide: 2
1kg
Overall dimension: 560mm× 370mm× 160mm
Mass: 10 kg (excluding calcium hydroxide and oxygen)
  Main performance:
Respiratory volume: 30l/min
Expiratory resistance: ≤ 600Pa
Inspiratory resistance: > 0
Quantitative oxygen supply: 1
6± 0
1 L/min
Automatic makeup oxygen supply: > 100 L/min
Manual supply substituting oxygen: > 100 L/min
Opening pressure of automatic makeup valve: 50 ～ 245 pa
Concentration of carbon dioxide in oxygen absorption: < 1%
Oxygen concentration in inspiratory air: > 21%
Alarm pressure of alarm: 4 ～ 6 MPa
Alarm time: 30 ~ 60s
Sound level: ≥ 80db