12mm PE-RT EVOH 3-Layer Pipe for Underfloor Heating Pipe

12mm PE-RT EVOH 3-Layer Pipe – Underfloor Heating

The 12mm PE-RT EVOH 3-Layer Pipe is a high-quality multilayer pipe designed specifically for efficient and reliable underfloor heating systems. It features a 3-layer construction comprising an inner PE-RT (Polyethylene of Raised Temperature) layer, a bonded EVOH (Ethylene Vinyl Alcohol) oxygen diffusion barrier, and a protective outer PE-RT layer.

The oxygen barrier completely encases the inner pipe, preventing oxygen ingress which helps reduce corrosion in the heating system and extends system longevity. Its flexible and lightweight design makes installation quick and easy, perfectly suited for overlay and screed-based underfloor heating installations.

Key Features

• Diameter: 12 mm
• Wall Thickness: Approximately 1.6 mm
• Maximum Service Temperature: 70°C
• Maximum Working Pressure: 6 bar at 35-65°C (underfloor heating), 12 bar at 20°C (cold water)
• Construction: Three layers - PE-RT inner, adhesive layer, EVOH oxygen barrier, and PE-RT outer layer
• Oxygen Diffusion Barrier: Fully encased EVOH barrier to protect system components
• Flexibility: Easy to bend and handle for fast installation
• Certifications: Compliant with ISO 22391 and DIN 4726 standards
• Typical Coil Lengths: 80m and 320m coils available
• Colour: Usually white outer sheath

This pipe is ideal for modern low-temperature underfloor heating systems, offering excellent thermal efficiency, corrosion protection, and long-term durability.

Note: Not suitable for domestic plumbing; intended primarily for underfloor heating applications.

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on all orders

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Delivery fee of £15

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX