RN/BN 1603
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RN/BN 1603
RN/BN 1603 is a Self Contained Breathing Apparatus designed for maintenance works in chemical plants and industrial areas, for rescue operations and, generally,  in all cases where there is, or may be, oxygen deficiency

RN/BN 1603 adds on maximum safety and comfort the efficiency, versatility and simple use of the MK2 System, as well as the astonishing field of vision of the Spasciani TR 2002 BN mask.

TR 2002 BN mask  is provided with a special dual use connection enabling to use the mask in positive or negative pressure. A special patented device automatically corrects valve loading to adapt it to the device connected. The mask is provided with a special quick connector to DIN 58600  and with a standard screw connector according to EN 148-1, it can therefore be used in positive pressure with Spasciani breathing apparatus equipped with type BN demand valve and  with filters and other negative pressure devices.

RN/BN 1603 is fitted with an automatic demand valve which keeps a positive pressure in the mask thus avoiding any possible inward leakage of contaminated air from the outside. Should it become necessary the positive pressure mode can be activated by acting on the  special button that acts as a supplementary air command, too. The demand valve is connected to the medium pressure hose by means of a quick coupling which allows to disconnect it very easily for maintenance.

RN/BN 1603  takes advantage from the unique MK2 System warning built into the demand valve. This is activated when the pressure left in the cylinder drops below 55 bar. The signal originates from a sounding vibration caused by every inhalation. In this way the full capacity of cylinder is made available to the user for breathing. The acoustic warning is related to the respiratory frequency of the user and allows the user to distinguish his own signal from that emitted by nearby fellows or noise (Self Test Function). The location of the warning device protects it from frost or dirt.

The back plate is made of blow moulded polypropylene, it is extremely robust and anatomically shaped to allow a comfortable distribution of weight and remains steady on the wearer’s back even when crouching or crawling. The supporting harness is provided with a special padding to increase comfort and can be equipped, on demand, with a soft belt in the hips area to increase portability of the equipment. Special handles integral with the backplate are provided for carrying the set along. The pressure reducer keeps the outlet pressure constant throughout the emptying of the cylinder and is connected to an easy to read phosphorescent gauge. The steel cylinder has a capacity of 6 litres with a pressure of 300 bar and is fitted with a valve according to EN 144.

RN/BN 1603 can also be used in conjunction with a wheeled BA Spasciani RC or an air line feeding system by means of the optional 4-way valve.

Technical Data
Pressure Reducer: piston with compensator
Automatic Demand Valve: with integral alarm device and supplementary supply button
Setting of the Alarm: 55 ± 5 bar
Volume/pressure of Cylinder: 6 l/ 300 bar
Air reserve: 1660 N litres
Duration: 55 min at an average consumption of 30 l/min for a single user
Classification and Marking
Certified Type 1 to EN137:2006 and meeting with directives 89/686/EEC (PPE), 97/23/EC (PED) and 96/98/EC (MED)

Materials
Mask: TR 2002 BN
  • Outer face blank: EPDM
  • Panoramic Visor: scratch and solvent resistant polycarbonate
  • Inner Nose Cup: TPE
  • Five arm head harness: EPDM
  • Carrying strap: PVC
Backplate: thermoplastic polypropylene
Harness with padding: self-extinguishing webbing and elastomeric foam
Pressure reducer: brass alloy nickel plated
Automatic Demand Valve: fiber glass reinforced nylon housing
Cylinder: Composite
Weight
15 Kg approx., set complete with mask and fully charged cylinder
Dimensions
310x660x220 mm, measured with set laying down on a flat surface.

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