HEGLER STAPAFLEX EPY is a heavy, flexible steel armored pipe made of multi-layer galvanized steel strip and impregnated insulating paper insert with plastic coating for corrosion protection, in nominal sizes DN 20, 25, 32, 40 and 50. Suitable for installation in machine, plant and vehicle construction. VDE 0605, DIN EN 61386-22. Minimum compressive strength: F 1250 N/5 cm.