Lalizas 71327 Instructions Of Use page 3

a. A visor (designed to provide a wide field of vision, to be attached in a reliable and gas-tight manner to the faceblank and to be resistant to scratching and mist covering),
b. A speech diaphragm (protected against mechanical damage),
c. An exhalation valve (that works well in all orientations and is protected against dirt and mechanical damage),
d. A plug-in interface for the insertion of the "on demand" valve (readily connected and secured by hand and not possible to be connected to a thread, assuring correct and reliable
connection between the facepiece and other parts of the equipment),
e. Rubber straps (designed so that the full face mask can be donned and removed easily, while they are adjustable so as to hold the full face mask firmly and comfortably in position),
f. A sealing edge (that in combination with the high quality rubber straps ensure high fitting/ sealing regardless the face structure. It is unlikely that the requirements for leakage will be
achieved if facial hair or spectacle side arms pas under facial seal!)
g. A head net.
All components which are integral with the face mask, are of high quality and ergonomic design so as to serve in the best way a combination of well-fitting and easy-use of the device. Care
has been taken so that materials that may come in contact with the wearer's skin are not likely to cause irritation or have any adverse effect to health.
e) Cylinder: For 71327 SCBA Model, a metallic cylinder of 6L and working pressure of 300bar, tested according to European Standard EN 1964-1 "Transportable gas cylinders.
Specification for the design and construction of refillable transportable seamless steel gas cylinders of water capacities from 0,5 litre up to and including 150 litres" and Certified under
Pressure Equipment Directive (PED) 97/23/EC as amended as well as under Transport Equipment Directive (TPED) 2010/35/EC, is used.
For 71328 SCBA Model, a composite cylinder of 9L, which has a working pressure of 300bar, tested according to European Standard EN 1975 "Transportable gas cylinders. Specification
for the design & construction of refillable transportable seamless aluminium and aluminium alloy gas cylinders of capacity from 0.5 litre up to 150 litre" & EN 12245 "Transportable gas
cylinders- Fully wrapped composite cylinders" and certified under Pressure Equipment Directive (PED) 97/23/EC as amended, is used. The pressure vessel outlet connection is designed
per EN 144-1 i.e. the Cylinder thread for both models is 18x1, 5mm.
Both types of cylinders are coloured per the Colour Coding System as instructed for breathing air by EN 1089-3:2001 "Transportable gas cylinders- Gas Cylinder Identification (excluding
LPG)- Part 3: Colour Coding."
f) Pressure Vessel Valve (Figure 1): The cylinder valve that is used for both Self-Contained Breathing Apparatus Models (71327 & 71328), is designed in accordance with EN 144-1
"Respiratory Protective Devices- Gas Cylinder Valves- Thread Connections for Inlet Connector" and EN 144-2 "Respiratory Protective Devices- Gas Cylinder Valves-Outlet Connections".
More specifically, the inlet and outlet connections on the pressure vessel valve are respectively in accordance with the requirements given in EN 144-1 for the inlet connection (M18X 1,
5mm) and EN 144-2 for the outlet connection (G5/8). This valve has a Working Pressure of 30MPa, while it bears a relief valve. The cylinder valve is equipped with a convenient in use
rubber knob and is so arranged that the wearer can operate it while wearing the apparatus. It is also protected against blockage and transmission of particulate matter that may be
contained in the compressed air and is so designed that the valve spindle cannot be completely unscrewed from the assembly during normal operation.
The LALIZAS Self-Contained Breathing Apparatus Models (71327 & 71328) are packed in heavy duty plastic carrying suitcases which provide high impact resistance that protects the
product in case of shock and drop (Figure 5). However, it is recommended to handle them with care.
Grooves for the high
and medium pressure
hoses of the pressure
regulator
Pressure
gauge & whistle
Thread G5/8
First stage
regulator
relief valve
a) Back frame assembled with first stage regulator, second stage regulator & face piece.
b) Back frame assembled with first stage regulator, second stage regulator, face piece & cylinder.
Rubber
protection
cover
Thread G5/8
First stage
regulator
relief valve
(a)
Figure 1 SCBA components.
Figure 2 First stage regulator
(b)
Figure 3 Second stage regulator
OFF button
ON button
Pneumatic
hose fast joint
Cylinder
Cylinder valve
On demand
valve
Plug in
interface