50mm Wall Thickness Pipe Insulation
50mm Wall Thickness Pipe Insulation — UK Specialist Supplier
Shop our range of pipe insulation with 50mm wall thickness, available in Kingspan Kooltherm phenolic foam, Kingspan K-Roc mineral fibre and Rockwool Rocklap stone wool. 50mm wall insulation represents the maximum standard wall thickness for pipe insulation and is specified for the most demanding large-bore industrial and process pipework, district heating networks and high-temperature steam systems.
Available Products
- Kingspan Kooltherm 50mm Wall — Premium phenolic foam with λ = 0.025 W/mK. Meets BS 5422 for very large bore commercial and industrial heating pipework (up to 219mm OD). Class O fire rated, foil faced. Maximum phenolic performance at the thinnest possible wall
- Kingspan K-Roc 50mm Wall — Mineral fibre pipe insulation with A2 fire classification. λ = 0.033 W/mK, reinforced aluminium foil facing with self-adhesive closing lap. Specified for the most demanding high-temperature industrial and process pipework applications
- Rockwool Rocklap 50mm Wall — Foil-faced stone wool pipe sections. A1 non-combustible (Euroclass A1), rated to 750°C continuous operating temperature. The standard specification for heavily insulated steam, superheated water and industrial process pipework
Why Choose 50mm Wall Thickness?
- Maximum thermal performance — 50mm wall minimises heat loss from large-bore and high-temperature pipework, delivering the greatest energy savings in industrial and process applications
- BS 5422 compliance — 50mm Kooltherm meets the minimum insulation requirement for very large bore pipework (up to 219mm OD) under BS 5422
- A1 non-combustible — Rockwool Rocklap achieves Euroclass A1, essential for fire-critical industrial environments and high-risk process pipework
- Extreme temperature capability — mineral wool maintains full performance at continuous operating temperatures up to 750°C, covering all standard steam and process applications
- Process industry standard — 50mm wall is the standard specification for heavily insulated steam and process pipework in refineries, power stations and industrial plant
Common Applications
- High-pressure steam pipework in industrial plant and power stations
- Superheated water and process pipework in refineries and chemical plant
- Very large bore district heating and heat network pipework (up to 219mm OD)
- Industrial boiler house and plant room pipework requiring maximum insulation
- Fire-rated pipework in high-risk industrial environments
50mm vs 40mm — Which Should I Choose?
40mm wall covers most large-bore commercial heating and district heating applications. 50mm is specified where BS 5422 requires maximum wall thickness for very large bore pipework, or where process industry standards demand the highest level of thermal insulation. See our wall thickness guide for full details.
