Twin Welding Hose
Blue hose – a flexible hose for transporting oxygen for welding and cutting, for arc welding using shielding gas and related pro cesses.
Red hose – a flexible hose for transporting acetylene for welding and cutting, for arc welding using shielding gas and related pro cesses. Also suitable for hydrogen, coal gas and carbon dioxide, argon, nitrogen for welding and cutting (not suitable for LPG, MPS and CNG).
Standard/approval: ISO 3821:2008 (formerly EN 559:2003).
Temperature range: -30°C / +70°C.
Safety factor: 3:1
Tube: EPDM, black, smooth.
Reinforcement: Textile spiral construction.
Cover: EPDM, blue and red, smooth.
Marking: Continuous laser marking on the blue hose: “SEMPERIT S TWIN ISO 3821 (EN559) PN 2MPa (20 bar) DN -30°C quarter/year Made in EU”.