Spasciani BVF Instrucciones De Uso página 12

Tab.1 – Technical features of the cylinders
Capacity
(l)
3 (steel)
3 (composite)
*at a pressure of 300 bars, the PxV formula is no longer used to calculate the volume of air available, you must consider the
compressibility factor, which leads to a reduction of about 8%.
**autonomy achieved for an average consumption of about 30 l/min. per operator.
The cylinders are equipped with hand wheel valves (b1) with threads connection according to the EN 144-1 standard
as far as the connection between the valve and cylinder is concerned (cylinder neck thread M18x1.5) and to the EN
144-2 for nominal operating pressures of 300 bar as far as the connection between the valve and pressure reducer is
concerned.
The cylinders and valves are in accordance with the PED 2014/68/UE and/or TPED 2010/35 EU Directives and with the
national regulations of the countries in which they are marketed. They are also provided with all the relevant
documents (declarations of conformity, test certificates, instructions for use).
The identification data is printed on the cylinders and valves as required by the applicable laws or on a special permanent
label applied to the cylinder (composite cylinders). The cylinders are painted according to the EN 1089-3 standard.
Breathable air is provided by the cylinders and must always be in accordance with the EN 12021 standard.
The valves of the cylinders can be provided with the Excess Flow Valve accessory upon request (see accessories).
2.3. PRESSURE REDUCER (pos. C in Fig. 1 and Fig. 2)
The pressure reducer has a brass body and contains the devices which reduce and maintain the pressure at 5.5 bar
depending on the pressure inside the cylinder. When the cylinder pressure reaches (705) bar, a special device increases
the output pressure to 8 bar, thus turning the alarm signal of the mask on.
The reducer consists of the following elements:
- EN 144-2 connection for the cylinder (pos. 1 in fig. 2); the swivel is rubber-coated
- High pressure connection (pos. 2 in fig. 2). The pressure gauge is connected to the high-pressure connection (pos.3
in fig.2)
- Medium pressure hose (pos. 4 in fig. 2) with quick safety connection to feed the demand valve. The medium pressure
hose is connected to the reducer via a swivel fitting (pos. 5 in fig. 2)
- Auxiliary connection with cap (pos. 6 in fig. 2). On the auxiliary connection, the "additional alarm" accessory (see
section 2.7.1) can be fitted, removing the cap
- Safety valve (pos. 7 in fig. 2).
2.4. PRESSURE GAUGE (pos. D in Fig. 1 and pos. 3 in Fig.2)
Pressure gauge with zero stop feature and within the precision limits of class 1.6. It is equipped with a nickel-plated
casing and covered with a gauge cover shell to protect it from shock. The quadrant is luminous, with a full scale of 360
bars, a resolution of 5 bars and a reserve indicator under 50 bars. A second PSI scale is provided.
2.5. AUTOMATIC DEMAND VALVE WITH AUDIBLE WARNING DEVICE (pos. E in Fig. 1 and Fig. 3)
The demand valve is made of a reinforced plastic material case and contains both the device that delivers the air and
the acoustic warning device. It is connected to the reducer via a medium pressure hose with an articulated connector.
The locking button (pos. 1 fig. 3) allows you to block the dispensing device that is activated before the first breath. A
type A or Bayonet BN demand valve can be provided depending on the full-face mask version (see section 2.6).
2.6. FULL FACE MASK (Fig. 4)
A description of the masks that can be used with the self-contained breathing apparatus BVF is described here below.
Check the Configurator for details on the masks that can be used on each model.
• Type "A" with positive pressure and thread connector EN 148-3 (M45x3), to be used with Type A demand valve.
Available models:
- TR 82 A (code 112300000) certified according to EN 136:98 class 3
- TR 2002 A CL3 (code 113000000), TR 2002 S A CL3 (code 113060000) certified EN 136:98 class 3
Note: The operation of the SCBA, if equipped with connector EN 148-3, it is still possible with other masks conform to
the same standard exclusively in emergencies and in case it is not available (due to accidents) the correct mask.
Pressure Diameter
(bar) (mm)
300 115
300 115
Length Weight
(mm) empty (kg)
420 5
440 1.9
Reserve* Autonomy**
(l) (min.)
830 27
830 27
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