PREMANT district heating pipe

System description

1. General

PREMANT is the protected name for a pre-insulated steel pipe system used to transport district

heat. It is a pipe system for direct installation in the ground, without channels. The system has

proven its excellence over several decades and is now recognized as the industry standard for

normal cases.

Depending on the purpose of use, PREMANT district heating pipe has a medium pipe made of

steel, either welded, seamless or galvanized, or made of stainless steel. This makes PREMANT

district heating pipe suitable to transport heating water, domestic hot water, water/glycol mix-

ture, condensates and other fluids, but not for steam. (with observation of the temperature)

Heat insulation for PREMANT district heating pipe is performed by a rigid polyurethane foam

which can withstand temperatures of up to 144 °C. PE-HD casing pipe provides external protec-

tion. All three components form one fixed unit, so this pipe system is a member of the compos-

ite pipe family.

PREMANT district heating pipe is available in three categories of insulation thickness.

Depending on the dimensions, the pipe construction units can be supplied in lengths of

6 + 12 m (or 16 m). The construction units and all associated preformed parts such as bends,

T-pieces and fixed points, etc., are prefabricated in the factory. The result is a modular system

which is correspondingly easy to plan and install.

All the components are connected together on site with circumferential seams. Supplemen-

tary insulation of the the weld seam and the weld-on ends is provided by means of joints. The

supplementary insulation work is usually carried out by system suppliers or qualified specialist

companies on our behalf. During the planning phase, we offer support based on our system

experience to system users who request this.

PREMANT district heating pipe, and the preformed parts and fittings, are manufactured

according to the latest standards (EN 253, 448, 488 and 489).

All the illustrations are schematic representations that do not correspond to the original

components in every detail.

PRE 6.100

Max. temperature for continuous operation

T

Bmax

: 144 °C (160 °C)

Max. permitted operating pressure p: 25 bar

2. Range of applications

23.5.2023 BGP

Subject to technical changes