Armaflex EVO Pipe Insulation — Size & Application Guide
Armaflex EVO is the UK's most widely specified elastomeric foam pipe insulation, manufactured by Armacell. It is a closed-cell nitrile rubber foam with a built-in vapour barrier, Class O fire rating and Microban antimicrobial protection — suitable for heating, HVAC, chilled water, refrigeration and plumbing applications from -50°C to +105°C.
Armaflex EVO by Pipe Size
- 15mm — 15mm guide — domestic heating, hot & cold water, radiator connections
- 22mm — 22mm guide — domestic heating mains, cylinder connections
- 28mm — 28mm guide — larger domestic and light commercial heating
- 35mm — 35mm guide — light commercial heating mains
- 42mm — 42mm guide — commercial heating mains and plant room pipework
- 54mm — 54mm guide — large bore commercial heating and chilled water
- 76mm — 76mm guide — large bore HVAC and chilled water
Armaflex EVO by Wall Thickness
- 6mm wall — OEM and tight-space applications
- 9mm wall — domestic heating and frost protection
- 13mm wall — standard domestic heating and plumbing
- 19mm wall — commercial HVAC and chilled water
- 25mm wall — condensation control and commercial heating
- 32mm wall — refrigeration and critical chilled water
Key Technical Data
- Thermal conductivity: λ ≤ 0.033 W/mK at 0°C
- Water vapour resistance: μ ≥ 10,000 (built-in vapour barrier)
- Operating temperature: -50°C to +105°C
- Fire rating: Class O (BS 476 Part 6 & 7), B-s2,d0 (EN 13501-1)
- Microban antimicrobial protection throughout
- Available in standard (open slit) and self-seal versions
Related Guides
- The Ultimate Guide to Pipe Lagging
- Armaflex Installation Guide — How to Fit Armaflex Pipe Insulation
- Armaflex Adhesive Guide — How to Use Armaflex 520 Correctly
- Condensation on Pipes: Causes, Prevention and the Right Insulation
- Pipe Insulation Wall Thickness Guide
- BS 5422 Pipe Insulation Standards Guide
- Armaflex vs Tubolit — Which Should You Choose?
- Armaflex vs K-Flex — Which Should You Choose?
- Can Pipe Insulation Be Used Outside? Outdoor Pipe Lagging Guide
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