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•
Type
“BN” with positive pressure and
DIN 58600 bayonet connector, to be used with Type BN demand valve. BN
masks are also provided with a special patented mechanism that enables use with negative pressure devices such
as SCBA demand valves or canisters having a standard thread connector to EN 148-1.
(Rd 40x1/7”).
Available models:
-
TR 2002 BN CL3 (code 113010000), TR 2002 S BN CL3 (code 113070000) certified EN 136:98 class 3
•
Type
“B” with positive pressure
and DIN 58600 bayonet connector, to be used with Type BN demand valve.
Available models:
-
TR 82 B (code 112310000) certified EN 136:98 class 3.
See the attached instructions of each mask for more information on their features and appropriate use.
2.7.
ACCESSORIES
2.7.1.
Four-way valve
The Automatic 4-way connection or Four-way valve is an accessory provided upon request that allows you to:
-
feed a second operator who will be equipped with an individual warning device signal on their mask;
-
connect the self-contained breathing apparatus to an alternative source of air to prolong its autonomy and/or to
ensure a safe escape whenever the main feeding source has suffered an accidental interruption. When fed by an
alternative source (at 5.5 bars), the cylinder is automatically excluded.
The detailed instructions for use of the 4-way valve are attached to the accessory.
2.7.2.
Additional warning device
The additional warning device can be installed, upon request, on the BVF device and allows you to have a continuous
alarm signal, in addition to the intermittent alarm signal already provided with the demand valve.
It is installed on the reducer and simultaneously activates itself with the main warning device.
2.7.3.
Excess flow valve
The valve of the cylinder can be equipped, upon request, with an excess flow valve.
2.7.4.
Medium pressure connections
The medium pressure hose, which connects the reducer to the demand valve, can be equipped with quick Euro-
Coupling connections (default) or Spasciani connections (upon request).
2.7.5.
ATEX self-contained breathing apparatus
Upon request, the self-contained breathing apparatuses can be provided in the "Atex" version. See section 8 for details
on this line of devices.
3.
USE
Warnings
All the preparatory and use operations of the self-contained breathing apparatus must only be carried out by qualified
and trained personnel. Make sure any accessory or auxiliary device or any other type of protective wear used in
addition to the system does not compromise or hinder its safety or hold.
The autonomy of the self-contained breathing apparatus depends on the initial amount of air available and on the
operator's breathing rate, but also on the presence of accessories that could consume the air (i.e. additional warning
device, second output hose).
Always use devices that were preventively checked. The operations described here below must always be followed
before use.
3.1.
BEFORE USE
3.1.1.
Cylinder installation
Insert the cylinder into its holder and fix it by means of the special buckle (pos. a3 in Fig.1). Connect the reducer to the
cylinder using the appropriate swivel connector.
3.1.2.
Connecting the demand valve
Insert the male and female quick connectors of the medium pressure hose. Apply little pressure to connect them.
Please note: Apply little axial pressure on the connections to disconnect them, while simultaneously pulling back the
female connector. Never disconnect if the hoses are under pressure!
Press the locking button of demand valve (pos. 1 in Fig.3) to avoid air leaks when wearing the device.
3.1.3.
Check cylinder pressure
Insert the locking button (pos. 1 in Fig.3). Open the valve of the cylinder: the pressure gauge should read not less than
280 bar for cylinders with an operating pressure of 300 bar.