Application
Blue hose – a flexible hose for transporting oxygen for welding and cutting, for arc welding using shielding gas and related processes.
Red hose – a flexible hose for transporting acetylene for welding and cutting, for arc welding using shielding gas and related processes. Also suitable for coal gas, carbon dioxide, argon, nitrogen for welding and cutting (not suitable for LPG, MPS and CNG).
Standard/Approval
ISO 3821:2019 (formerly EN 559:2003).
Safety factor
3 : 1
Tube
EPDM, black, smooth.
Reinforcement
Textile spiral.
Cover
EPDM, blue and red, smooth.
Marking
continuous inkjet on blue hose, white letters: "SEMPERIT (S) TWIN ISO 3821 (EN 559) PN 2 MPa (20 bar) ID x OD / ID x OD -30°C YYYY MADE IN EU //////".