Armaflex Class O Pipe Insulation 54mm x 25mm

Armaflex Class O Pipe Insulation 54mm x 25mm gives 54mm copper the heavy 25mm wall, for places where condensation or frost is the main worry. Think chilled water pipework, cold mains in plant rooms and supply pipes passing through unheated stores.

What the 25mm wall does

Cold pipes pull moisture out of the air, and on a 54mm main that can add up to a steady drip. A thick closed-cell wall keeps the foam surface warm enough that water does not condense on it. The foam itself shrugs off moisture, so it keeps working instead of getting soggy like fibre lagging.

• Bore for 54mm copper
• 25mm closed-cell foam
• About 104mm across fitted
• 2 metre tubes
• Class O fire grade

With a finished size around 104mm, allow plenty of room between pipes and at wall openings. Glue every seam and joint, and use insulated supports so the clips do not form cold bridges. Armaflex Class O Pipe Insulation 54mm x 25mm can be cut with a long sharp knife for a square end. Lighter walls for 54mm copper sit in the pipes, hoses and insulation range.

Collect from our Glasgow shop

It is handed over at the counter only, at Plumb Parts, 555 South Street, Glasgow G14 0QX. Buy online and pick it up, Mon-Fri 8am-5pm or Sat-Sun 8am-1pm.

Specification

• Brand: Armaflex
• Range: Class O pipe insulation
• Material: Flexible closed cell elastomeric (nitrile rubber) foam
• Sizes: 54mm bore, 25mm wall, 2m lengths
• Standard or approval: Class O fire performance, as named
• Suitable for: Insulating 54mm pipe

Common Questions

When should I use 25mm wall on 54mm pipe?

On 54mm chilled water, or cold mains where condensation would drip onto ceilings. It is the heaviest listed for this size.

Will 54mm x 25mm go round tight bends?

It is stiff, so make mitred joints rather than bending it. Glue each mitre.

How many lengths cover 20m of 54mm chilled pipe?

Ten 2m lengths cover 20m. Order spares for the tees and valves on the run.