USE
The user has no contact with the ambient atmosphere, the equipment offers complete protection of the respiratory tracts during fire fighting operation or in industrial environment, either in a premises with a high level of toxic gas or where the oxygen content has fallen below 17% in volume.
PRINCIPLE
The air required for breathing is contained in one cylinder mounted vertically on a frame designed to assume the shape of the user’s back with the valves at the lower end. The compressed air is then de-compressed by means of a pressure reducer which in turn supplies air to a regulator. This
regulator is connected to the lower part of the mask, supplies air as required and adapts to the physiological requirements of the user. An audible warning whistle sounds an alarm when the cylinder pressure drops to a dangerous level and a supply of few minutes of air is left.
SPECIFICATIONS
1. Capacity of Cylinder – 1200/1800 ltrs. (Air) at 200 bar.
2. Reduced Pressure at demand valve (After Ist stage) 4/5 bar (preset).
3. Weight of unit – 12.5/14 KG. (approx) Duration of working – 30/45 minutes
4. Audio – alarm system – pre-adjusted when 5-7 minutes of supply remain.
5. Back plate – light weight FRP.
SA L I E NT F E A T U R E S
1. CYLINDER
Single cylinder fitted with valve as per IS specification. High tensile steel cylinders, seamless, certified by chief controller of explosives, Nagpur, for storing compressed Air.
2. REDUCER
Exclusive & efficient two stage pressure reducing system which is safer than single reduction.
3. HIGH & LOW PRESSURE HOSES
Both high and low pressure hoses are tested at double it’s working pressure.
4. DEMAND VALVE
Efficient lung operated Demand valve fitted to Air tight face mask with wide vision polycarbonate visor.
5. WARNING WHISTLE
Loud warning whistle sounds continuously when 5-7 minutes of supply is left.
6. MASK
Molded Rubber Mask with speech transmission diaphragm & an ex-hale valve. Mask is provided with quick snug & release head harness. The design is such that it reduces the misting effect.
7. BACK PLATE
FRP backplate with harness locking the cylinders to back plate.
8. CYLINDER VALVE
The cylinder valve operates by a hand wheel & provides maximum ease & comfort to wearer for opening & closing.
9. HARNESS
Simple synthetic harness provided with cushion at shoulder & quick release buckles. The Complete set comes to the user in a beautiful synthetic waterproof bag for convenient handling and storage.
MAINTENANCE & OPERATION MANUAL WILL BE FURNISHED WITH EACH SET.