Flexible Pre-insulated Piping System

is a piping system composed of an inner carrier pipe (for transporting fluids like hot or chilled water), surrounded by a thermal insulation layer (typically polyurethane or similar), and enclosed within a durable protective jacket — all in a flexible, bendable configuration.
These systems are commonly used in district heating/cooling networks, hot water distribution, and underground piping. They offer energy efficiency, ease of installation, and excellent resistance to weather, corrosion, and mechanical stress.