Material spiral: spring steel wire wall: pure polyester polyurethane (acc. to DIN ISO 4649 more abrasion-resistant in compari- son to polyether polyurethane) wall thickness between spirals approx. 1.7 - 2.1 mm, depending on DN Applications ● For increased requirements of abrasion ● Suction & Transport Hose for extremely ● Flat roof gravelling ● Working Hose for silo vehicles and cargo ●Transport Hose for problematic media, e.g. sand, gravel, grain, granulates | Properties ● halogen and plasticizer-free ● extremely abrasion-resistant via specific ● high vacuum and apex pressure resistance ● good flexibility ● smooth inner lining, optimum flow ● highly durable, long service lives ● good chemical resistance ● generally good UV and ozone resistance ● oil/petroleum-proof ● gas-tight ● high tensile strength ●acc. to TRBS 2153 (Zone 20) for non- flammble dust/bulk solids for conductingelectrostatic charges when earthed at both ends of the spiral ● microbe-resistant ● antistatic, surface resistance < 10 Temperature Range ● -40°C to +90°C ● peaks to +125°C |