Industrial type pre-insulated pipe is composed of four main materials. The inner “service pipe” is generally a seamless pipe depending on the fluid to be transferred, the middle layer is isolation material glass wool and (PUR) and the outer covering pipe is a high density polyethylene material.
Industrial type pre-insulated pipe
Steel: ST 35.8 I quality seamless ( drawing ) pipe
PUR: Rigid poliuretan , density > 60 kg/m3
Glass Wool: Industrial type , aluminum foiled prefabricated , fire resistant, density 110-140 kg/m3
HDPE: UV resistant , black , high density , polyethylene , density > 940 kg/m3