Armaflex Self Seal Class O Insulation 54mm x 9mm

On big commercial pipework, Armaflex Self Seal Class O Insulation puts a 9mm wall of closed cell foam round 54mm copper, with a self-adhesive seam. It suits big pipe inside the warm part of a building, where space is tight.

Where 54mm Armaflex self seal insulation goes

54mm copper is common on commercial heating and hot water mains, and in plant rooms feeding several zones. Its closed cells keep water vapour out of the foam. For valves and flanges on runs this size, sheet insulation cut to shape usually makes a neater box than tube.

• Bore: 54mm, for 54mm copper
• Wall thickness: 9mm
• Overall size: roughly 72mm
• Length: 2 metres, pre-slit

Pick clips and sleeves to suit the lagged size, not the bare pipe. If you need another bore or wall, check our pipe insulation section.

Fit it to a dry pipe, not one that is sweating, and put the seam where you can press it home along its length. Seal the butt joints with Armaflex adhesive or tape.

Glasgow collection for 54mm x 9mm pipe lagging

Visit Plumb Parts, 555 South Street, Glasgow G14 0QX. Counter hours: Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. The 54mm tube can be ordered online as well.

Specification

• Brand: Armaflex
• Range: Class O Self Seal
• Maker code: AF-CO-09X054-A
• Material: Closed cell elastomeric foam
• Connection: Pre-slit tube with self-adhesive seam
• Sizes: 54mm bore, 9mm wall, 2m long
• Standard or approval: Class O, as named
• Suitable for: Heating, hot and cold water pipework
• Pack quantity: One 2m tube

Common Questions

Is self seal tube practical on 54mm pipe?

Yes, it saves threading large tube onto fixed pipe. Open it round the pipe and press the seam home along its length.

How do I lag 54mm valves and flanges?

Sheet insulation cut to shape usually gives a neater box round odd shapes than tube.

Does Armaflex soak up water?

No, the closed cell structure stops water getting into the foam, so it keeps working on damp or cold pipe.