Steel Air Breathing Tube Set

Technical Information:
It is designed to protect people against hazards of airborne hazards in fire-fighting industrial environments or in fire-fighting environments where fire gases and fumes are present.
89/686 / EEC is a special design tube respiration system which is classified as Personal Protective Equipment.
Conforms to EN 137 TYPE 2 / EN 139 standards and CE marked.
Conforms to the MED directive
Vision 3 Positive Pressure Full Face Mask + Sigma 2 Complete set including Carrier Plate and Demand Valve.
The Sigma 2 Type 2 set is a simple and reliable two-stage pneumatic system.
The first breath-activated positive pressure valve provides low breathing resistance and excellent performance, especially at high flow rates.
In the first stage, the pressure reducing valve only has two moving parts, accepting pressures of 300 bar without adjustment.
Activation of the first breath varies from -20 to -30 mbar.
The static positive pressure is between 1.0 and 4.0 mbar.
Includes non-adjustable, spring loaded piston mechanism and first stage pressure relief valve with output supply.
Maximum working pressure is 450 bar
The minimum blast pressure is 800 bar.
Length 600mm, Width 278mm, Depth (6.0 liter 200 bar cylinder) 200mm.
Cylinder (tube) connection device has a removable bronze filter.
55 Bar has early warning warning whistle and shoulder mounted pressure gauge.
Equipped with manual lock, impeller valve.
1860 liter free air capacity, 46 minutes usage