District Heating & Cooling

Standard type pre-insulated pipe is composed of three main materials. The inner “service pipe” is generally a steel pipe depending on the fluid to be transferred, the middle layer is isolation material (PUR) and the outer covering pipe is a high density polyethylene material.

Standard type pre-isolated pipe

Steel: ST 37 quality ERW ( welded longitidunal ) or SAW (spiral welded) pipe .

PUR: Rigid poliuretan , density > 60 kg/m3 heat transfer coefficient < 0.028 W/mK ( 50 0C) , isolation life at 120 0C 30 years , at 115 0C 50 years

HDPE: UV resistant , black , high density , polyethylene , density > 940 kg/m3

Properties of pre-insulated pipe:

• Long life
• Less heat loss compared to conventional isolation systems ( 40% energy saving )
• Can be burried in the ground
• Reduces consruction cost.
• %100 water resistant system
• Homogen and Equially distributed isolation on every point.
• Durable against chemical and sunlight
• Available combining parts.
• Manufacturing in accordance with standards.