FLOOR HEATING POLYETHYLENE PIPE

摘要

PROBLEM TO BE SOLVED: To provide a floor heating polyethylene pipe having sufficient flexibility without impairing durability, heat resistance and anticorrosiveness capable of greatly improving its workability during setting in a meandering shape. SOLUTION: The floor heating polyethylene pipe 16 to be placed in a pipe placement groove 15 formed in a pipe placement heat insulating material 14 for a floor heating device is formed of a polyethylene which has a density of 920-940 kg/m3, a yielding point stress of 15-17 MPa, a rupture point elongation of 760-820%, a tensile modulus of 550-580 MPa, a heat conductivity of 0.30-0.50 W/mK, and a coefficient of linear expansion of 1.8-2.0 10-4/K. COPYRIGHT: (C)2004,JPO&NCIPI