Armaflex Self Seal Class O Insulation 42mm x 9mm

For lagging 42mm copper, Armaflex Self Seal Class O Insulation with a 9mm wall is a quick-fit wrap. Split along its length with adhesive strips already applied, it makes short work of lagging pipe that is already fixed to the wall.

Where 42mm Armaflex self seal insulation goes

42mm is a commercial size, found on heating and hot water mains in offices, schools and blocks of flats. The 9mm wall suits pipe running inside heated areas, where the aim is to cut heat loss and keep things tidy. It is closed cell foam, so it resists water vapour on cooler lines too.

• Bore: 42mm
• Wall thickness: 9mm
• Overall size: about 60mm fitted
• Length: 2m, pre-slit with self-adhesive strips

Check there is space for about 60mm at clips and where pipes run in pairs. Other sizes are in our pipe insulation range.

Where one length meets the next, push them firmly together and glue the joint. Armaflex tape tidies up bends. Chilled lines want insulated supports at the clips.

42mm x 9mm pipe lagging at the Glasgow counter

Come in to Plumb Parts, 555 South Street, Glasgow G14 0QX. Times are Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. You can also order online.

Specification

• Brand: Armaflex
• Range: Class O Self Seal
• Material: Closed cell elastomeric foam
• Connection: Pre-slit tube with self-adhesive seam
• Sizes: 42mm 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

What is 42mm x 9mm Armaflex used on?

42mm heating and hot water mains in offices, schools and flats, where the pipe runs through heated space.

How do I join two lengths of 42mm Armaflex?

Butt the ends hard together and seal the joint with Armaflex adhesive, so damp air cannot creep in at the gap.

How much room does 42mm lagged pipe need?

Add the wall twice to the pipe size and allow that at clips and where pipes run in pairs.