Class 0 Fire Rated Pre-Insulated Coil – Pair
Pre-Insulated Coil
| Part | Description | Length | Size 1 | Size 2 | Insulation | Classification |
|---|---|---|---|---|---|---|
| O1001 | 9MM-O LAWTON PAIR 1/4" & 3/8" X 20M BLACK | 20M | 1/4" | 3/8" | 9MM | O Class |
| O1002 | 9MM-O LAWTON PAIR 1/4" & 1/2" X 20M BLACK | 20M | 1/4" | 1/2" | 9MM | O Class |
| O1003 | 9MM-O LAWTON PAIR 1/4" & 5/8" X 20M BLACK | 20M | 1/4" | 5/8" | 9MM | O Class |
| O1004 | 9MM-O LAWTON PAIR 3/8" & 5/8" X 20M BLACK | 20M | 3/8" | 5/8" | 9MM | O Class |
| O1005 | 13MM-O LAWTON PAIR 1/4" & 3/8" X 20M BLACK | 20M | 1/4" | 3/8" | 13MM | O Class |
| O1006 | 13MM-O LAWTON PAIR 1/4" & 1/2" X 20M BLACK | 20M | 1/4" | 1/2" | 13MM | O Class |
| O1007 | 13MM-O LAWTON PAIR 1/4" & 5/8" X 20M BLACK | 20M | 1/4" | 5/8" | 13MM | O Class |
| O1008 | 13MM-O LAWTON PAIR 3/8" & 5/8" X 20M BLACK | 20M | 3/8" | 5/8" | 13MM | O Class |
| O1009 | 13MM-O INSULATED COIL 1/4" X 20M BLACK | 20M | 1/4" | 13MM | O Class |
Pre-Insulated Coil A fast and easy solution that meets the needs of UK Building Regulations.
- Backed by Lawton’s reputation for quality, service and customer care for over 100 years
- Meets UK Building and Fire Safety Regulations
- Class O tested and passed in the UK for complete peace of mind
- Nitrile Butadiene Rubber (NBR) Class O rated insulation matched with Lawton Copper tube gives total product confidence
- The only Class O Pre-insulated Coil on the market for the UK and Ireland
- Suitable for Air Conditioning and Refrigeration applications
- Available in 20mtr coils, in both 9mm and 13mm thickness
- Easy installation. No glue, tape or messy powder
- Using pre insulated coil achieves pipework installation in less than half the time of conventional methods
- New improved profile developed for easy splitting during installation
| Part Number | Product Description | Tube Dimensions | Temper | Insulation Thickness | Lengths | Pallet Qty (coils) | Kgs per Coil |
| O1001 | 9mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 3/8″ x 0.81mm | Soft | 9mm (3/8″) | 20m | 11 | 6.45 |
| O1002 | 9mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 1/2″ x 0.81mm | Soft | 9mm (3/8″) | 20m | 11 | 7.22 |
| O1003 | 9mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 5/8″ x 0.91mm | Soft | 9mm (3/8″) | 20m | 11 | 9.32 |
| O1004 | 9mm Lawton Pair Coil Class O Fire Rated | 3/8″ x 0.81mm & 5/8″ x 0.91mm | Soft | 9mm (3/8″) | 20m | 10 | 10.93 |
| O1005 | 13mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 3/8″ x 0.81mm | Soft | 13mm (1/2″) | 20m | 11 | 6.45 |
| O1006 | 13mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 1/2″ x 0.81mm | Soft | 13mm (1/2″) | 20m | 10 | 7.22 |
| O1007 | 13mm Lawton Pair Coil Class O Fire Rated | 1/4″ x 0.71mm & 5/8″ x 0.91mm | Soft | 13mm (1/2″) | 20m | 10 | 9.32 |
| O1008 | 13mm Lawton Pair Coil Class O Fire Rated | 3/8″ x 0.81mm & 5/8″ x 0.91mm | Soft | 13mm (1/2″) | 20m | 9 | 10.93 |
Other Information & Insulation properties
- Temper: Soft
- Lengths: 20m
- Material: Highly flexible Closed Cell NBR Foam insulation in 9mm & 13mm
- Thermal Conductivity to ASTM C518: 0.036 W/mK at 20deg C
- Density: 40kg/m3 to 70kg/m3
- Working Temperature: -50deg C to +105deg C
- Vapour Barrier to ASTM C209: 7000
- Fungal growth: NIL
- Environmental: CFC Free, Zero ODP, Zero GWP. Corrosion resistant, dust and fibre free
Fire Performance
- Surface Spread of Flames, Class 1 Tested to BS476 Part7: Pass
- Fire Propagation: Total Index Performance (I) ≤ 12 Sub Index (i1 ) ≤ 6
- Fire Performance According to Building Regulations, Class O Tested to BS476 Part 6: Pass
- Practical Fire Behaviour: Self-Extinguishing, does not drip & does not spread flames
Technical Data
Product Overview
Pre-insulated copper coils available in Class O (NBR) and Class B (PE) fire-rated insulation options. Supplied as pair coils and single coils for use in air conditioning, refrigeration, and heat pump installations.
Applications
- Air conditioning systems
- Refrigeration piping systems
- Heat pumps
Market Sector
- Domestic
- Commercial
Tube Specifications
| Property | Specification |
| Material | CW024A Copper |
| Material Condition | R220 (Soft, Annealed) |
| Standard | EN 12735-1 |
| Outside Diameter Range | 1/4″ – 5/8″ (6.35 mm – 15.87 mm) |
| Wall Thickness Range | 0.028″ – 0.036″ (0.71 mm – 0.91 mm) |
| Inner Surface Quality | Clean and smooth, carbon content ≤ 0.38 mg/dm² |
| Delivery Condition | Nitrogen purged and capped |
| Form of Supply | Boxed coils |
Insulation Specifications
| Property | Class O | Class B |
| Material | Closed Cell NBR Foam | Closed Cell PE Foam |
| Insulation Thickness | 9 mm & 13 mm | 9 mm |
| Fire Classification (EN 13501-1) | BL-s3,d0 | BL-s1,d0 |
| Coil Lengths | 20 m | 25 m |
| UV Resistance | ASTM G154 & ISO 4892-3 Tested | ASTM G154 & ISO 4892-3 Tested |
Compatible Refrigerants
- R32
- R134a
- R410A
- R404A
- R407C
- R407F
- R1234yf
- R1234ze
- R744 (CO₂)
- And other common refrigerants
Installation Benefits
- No glue, tape or powder required
- Split insulation profile for easy fitting access
- Marked insulation and coil for easy identification
Guarantee
75-Year Guarantee
Subject to standard Terms & Conditions. Please refer to our website for full details.
Material Mechanical Properties
| Material Designation | Minimum Tensile Strength (MPa) | Minimum Elongation (%) | Hardness HV5 |
| R220 (Soft, Annealed) | 220 | 40 | 40 – 70 |
Material Composition
| Property | Value |
| Copper Content (including Silver) | 99.90% |
| Phosphorus Content | 0.015 – 0.040% |
| Total Impurities (excluding Phosphorus & Silver) | ≤ 0.060% |
| Melting Point | 1083°C |
| Density | 8.96 g/cm³ |
Maximum Operating Pressure (R220 Annealed Tube, up to 100°C)
| Outside Diameter | Wall Thickness | SWG | Maximum Operating Pressure (bar) |
| 1/4″ | 0.028″ | 22 | 101 |
| 3/8″ | 0.032″ | 21 | 75 |
| 1/2″ | 0.032″ | 21 | 55 |
| 5/8″ | 0.036″ | 20 | 44 |
