Pre-insulated pipes

Technical data of pre-insulated district heating network components

1. Carrier pipe.

The steel carrier pipe meets the requirements of PN-EN 253.
• seamless steel pipes – made of P235GH grade steel with a quality as per PN-EN 10216-1, PN-EN 10216-2
• longitudinally or spirally welded steel pipes – made of P235GH grade steel with a quality as per PN-EN 102017-1, PN-EN 102017-2, PN-EN 102017-5,
• longitudinally welded galvanized steel pipes – made of P235GH or P235TR1, P235TR2 steel grade with a quality as per
PN-
EN 10217-1, PN-EN 10217-2 and PN-EN 10217-5, and a zinc coating with a quality as per PN-EN 10240.

2. Casing jacket. PN-EN 253 casing pipes.

3. Thermal insulation.

• As per PN-EN253.

4. Pre-insulated pipes.

• Pre-insulated pipes in the range of diameters DN20 ÷ DN1000 with a steel carrier pipe (made in accordance with PN-EN 253).

5. Pre-insulated elements.

Made in accordance with PN-EN 253 and PN-EN 448.
• Bends
• Reductions
• Perpendicular branches
• Parallel branches
• Fixed points
• Bellows expansion joints

6. Pre-insulated fittings.

Made in accordance with PN-EN 253, PN-EN 448, and PN-EN 488.
• Vents
• Drains
• Shut-off valves
• Shut-off vent valves
• Shut-off drain valves
• Shut-off drain-vent valves

8. Alarm system components.

The alarm systems comply with the requirements of the 14419 standard.
• Sensor conductors
• Return conductors
• Two-wire conductors
• Four-wire conductors
• Clamping ferrules
• Heat-shrink tubing
• Supports
• Connectors
• Junction boxes
• Metering boxes
• Metering equipment