... -resistant jaceting Twin-way EPDM Pre insulated Flex Stainless steel pipe system ,fast installation ,no soldering Thermal protection: The characteristic value ... . Insulation thickness DN 16/13 mm; DN 20/20 mm.DN25/20mm Corrugated stainless steel tube: Flexible high-grade stainless steel ... bar; DN 20/17.5 bar,DN25 17.5 bar Rated burst pressure 200 barEPDM INSULATION PIPE of EPDM, light, flexible, closed ...