Positive pressure air breathing apparatus: 

 Models: RHZK-5/30, RHZK-6/30, RHZKF6.8/30 RHZKF6.8 × 2/30, RHZKF9/30 type 
 Cylinder material and cylinder volume is divided into the following types of respirators (specific parameters see table): 
 A cylinder-type positive-pressure air respirator (gas cylinders for steel cylinders) A.RHZK-5/30 positive pressure air breathing apparatus (5L steel cylinders) 
 B.RHZK-6/30 type positive pressure air breathing apparatus (the 6L steel cylinders) 
 2 composite cylinders positive pressure air breathing apparatus (aluminum interior carbon fiber fully wrapped composite cylinders) 
 A.RHZKF6.8/30 type positive pressure air breathing apparatus (6.8L aluminum interior carbon fiber fully wrapped composite cylinders) 
 B.RHZKF6.8 × 2/30 two-bottle positive pressure air breathing apparatus (2 6.8L aluminum interior carbon fiber fully wrapped composite cylinders) 
 C.RHZKF9/30 type positive pressure air breathing apparatus (9L aluminum interior carbon fiber fully wrapped composite cylinders) 
 RHZK series of positive pressure air breathing apparatus (Positive Pressure Air Breathing Apparatus,) is a self-sufficiency in open air respirator, mainly applies to the fire, chemical, shipbuilding, petroleum, smelting factories, mines, etc., so that firefighters or emergency rescue personnel to safely in the harsh environment full of smoke, gas, steam or oxygen for fire fighting, rescue and relief and rescue work. 
 The series of air respirator with a broad vision, bright, gas-tight full face mask, the air supply unit with a smaller, light weight, stable performance of the new supply valve; selection of the backplane of the high strength and high safety factor high-quality high-pressure cylinders; reducing valve device equipped with a residual gas alarm, the provisions within the cylinder pressure, the audible signal to the wearer, to remind use to withdraw from the scene in a timely manner. 
 The series air respirator in similar products, with a light weight, small size and use; easy maintenance, wear comfortable, stable performance, etc., is engaged in disaster relief, fire-fighting operations ideal personal respiratory protection device. 
 The series of positive-pressure air respirators by the National Fire Equipment Quality Supervision and Inspection Center qualified to meet the GA124 <> requirements. 


 Specification model and technical parameters: RHZKF6.8/30 positive pressure air breathing apparatus, 12 parts, the characteristics of the various components of the now described below: 
 Mask: in the vision window, the surface of the window lens polycarbonate material with high transparency, strong wear resistance, with anti-fog function, mesh hooded wear, wearing comfort, convenience, colloids with silica gel, non-toxic, tasteless, no stimulation, airtight performance. 
 Cylinder: aluminum interior carbon fiber fully wrapped composite cylinders, pressure 30MPa, with the light weight, high strength, good safety performance, the valve has a high-voltage protective devices. 
 (3) bottles with a group: a bottle with a card for a quick cam locking mechanism, and to ensure that the bottle belt is always in a closed-loop state. The cylinder does not appear flipped. 
 4 straps: flame-retardant polyester fabric strap with bilateral adjustable structure, so that the weight drop in Yaokua site, reduce the oppression of the shoulder strap on the chest, making breathing smooth. And the shoulder strap has a large flexible liner, alleviate shoulder oppression. 
 Alarm whistle: placed on the chest, the alarm sound is easy to differentiate, small size and light weight. 
 Gauge: large dial with night vision capabilities, with a rubber protective cover. 
 Cylinder valve: a high pressure safety device, open the torque is small. 
 Pressure reducer: small size, flow, stable pressure output. 
 Back care: back care design ergonomic, injection molding of composite materials made from carbon fiber, flame retardant and antistatic functions, lightweight, sturdy, flexible pad in the back to prop the inside lining enable the wearer comfortable. 
 Belt group: Snap lock, easy to adjust. 
 11 Quick Connector: small, one-hand operation, locking anti-off function. 
 12 supply valve: a simple structure, functionality, output flow, with the bypass output, small size. 
 Model 

 Cylinders work pressure MPa 

 Cylinder volume L 

 Maximum gas flow Lmin 

 Breathing resistance Pa 

 Alarm pressure MPa 

 Time (min) 

 Weight (kg) 

 Package Size 
 Expiration 

 Inspiratory 
 RHZK-5/30 

 30 

 5 

 300 

 <687 

 <588 

 4-6 

 50 

 ≤ 12 

 700 × 300 × 480 
 RHZK-6/30 

 30 

 6 

 300 

 <687 

 <588 

 4-6 

 60 

 ≤ 14 

 700 × 300 × 480 
 RHZKF6.8/30 

 30 

 6.8 

 300 

 <687 

 <588 

 4-6 

 60 

 ≤ 8.5 

 700 × 300 × 480 
 RHZKF9/30 

 30 

 9 

 300 

 <687 

 <588 

 4-6 

 90 

 ≤ 11.5 

 700 × 300 × 480 
 RHZKF6.8 × 2/30 pairs of bottles 

 30 

 6.8 × 2 

 300 

 <687 

 <588 

 4-6 

 120 

 ≤ 17 

 700 × 300 × 480 

 Note: positive pressure air respirator models now ZHK series requirements, prepared according to GAl24-1996 standard original models changed to RHZK series. Of which: R firemen personal equipment. H is the product category code respirator, ZK code for the product characteristics. Z is positive pressure. K for air F for the composite bottle.