Air Conditioning Pipe Insulation

Specialist pipe insulation for air conditioning systems, refrigerant pipework, and split system installations. AC pipework carries refrigerant at both high and low temperatures, requiring insulation that controls heat gain on suction lines, prevents condensation, and withstands the demands of indoor and outdoor installation environments.

Closed-cell elastomeric foam insulation — including Armaflex EVO, AF/ArmaFlex, and K-Flex ST — is the preferred choice for air conditioning pipework. Its closed-cell structure provides an integral vapour barrier, resists moisture ingress, and maintains thermal performance across the full range of AC operating conditions. Self-seal formats allow fast, clean installation on split system and VRF pipework.

• Insulates refrigerant suction and liquid lines on split systems and VRF/VRV installations
• Prevents condensation and heat gain on low-temperature suction pipework
• Closed-cell structure provides an integral vapour barrier — no additional wrapping required
• UV-resistant and weatherproof options available for external pipe runs
• Suitable for R32, R410A, R22, and other common refrigerants
• Available in slit, self-seal, and coil formats for all installation types

Browse our full range of AC pipe insulation below, or visit our Pipe Insulation Learning Centre for installation guidance and thickness recommendations.