Armaflex Self Seal Class O Insulation 22mm x 9mm

If the pipe is already in, Armaflex Self Seal Class O Insulation with a 22mm bore and 9mm wall saves threading lengths on from the end. It opens up, goes round 22mm copper or plastic pipe and sticks shut along the pre-glued seam.

Where 9mm Armaflex self seal insulation suits

Most domestic heating mains leave the boiler in 22mm, so this is the bore for the primary runs. The 9mm wall is the lighter option, best where the pipe sits inside heated space and room is tight. In a cold loft or garage, step up to a thicker wall. Being closed cell, the foam resists water vapour, so it keeps working on cool pipes too.

• Bore: 22mm
• Wall thickness: 9mm
• Finished size: about 40mm across
• Length: 2m, pre-slit with self-adhesive strips

Other sizes sit in our pipe insulation range.

Push each length tight to the last one so there is no gap. Then glue those end joints, not just the long seam, using Armaflex adhesive or tape for the neatest finish at bends and tees.

Buying 22mm x 9mm pipe lagging in Glasgow

Pick one up at Plumb Parts, 555 South Street, Glasgow G14 0QX. Serving Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. Or send your order online.

Specification

• Brand: Armaflex
• Range: Class O Self Seal
• Maker code: AF-CO-09X022-A
• Material: Closed cell elastomeric foam
• Connection: Pre-slit tube with self-adhesive seam
• Sizes: 22mm 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

Can I fit 22mm self seal tube on pipe that is already in?

Yes, that is what it is made for. Open it over the pipe, peel the film and press the seam shut.

Is 9mm lagging enough on 22mm heating pipe in a loft?

In a cold loft, go thicker. The 9mm wall is best for pipe running inside the heated part of the house.

How do I fit Armaflex round a 22mm tee?

Cut a hole in the run tube for the branch and shape the branch piece to meet it. Seal the joint with adhesive or tape.