NUT COMPRESSION
Compression Fittings
| Part | Description | Size | Bag | Box |
|---|---|---|---|---|
| COMNUT008 | 8MM NUT COMPRESSION | 8MM | 100 | 1300 |
| COMNUT010 | 10MM NUT COMPRESSION | 10MM | 100 | 1000 |
| COMNUT015 | 15MM NUT COMPRESSION | 15MM | 10 | 700 |
| COMNUT015EXT | 15MM NUT COMPRESSION EXTENDED | 15MM | 0 | 0 |
| COMNUT022 | 22MM NUT COMPRESSION | 22MM | 50 | 500 |
| COMNUT022EXT | 22MM NUT COMPRESSION EXTENDED | 22MM | 0 | 0 |
| COMNUT028 | 28MM NUT COMPRESSION | 28MM | 20 | 300 |
| COMNUT035 | 35MM NUT COMPRESSION | 35MM | 10 | 180 |
| COMNUT042 | 42MM NUT COMPRESSION | 42MM | 5 | 60 |
| COMNUT054 | 54MM NUT COMPRESSION | 54MM | 5 | 60 |
Compression Nut
The Lawton Compression Nut is designed to provide a secure connection within compression pipework systems. Manufactured for reliability and durability, it forms an essential part of a compression assembly by securing the olive against the fitting body to create a dependable mechanical seal.
The compression design enables quick and straightforward installation without the need for soldering or specialist tools. When tightened correctly, the nut ensures consistent performance across a wide range of plumbing and heating applications.
Manufactured to meet the requirements of professional installations, the Lawton Compression Nut is suitable for use with compatible compression fittings and copper tube systems. Backed by Lawton’s 75-Year Warranty, it delivers lasting reliability.
Key Features
- Secures compression fittings for reliable installation
- Manufactured for durability and long-term performance
- Suitable for compatible Lawton compression fittings
- Quick and straightforward installation
- No soldering or specialist press tools required
- Creates a secure mechanical compression joint
- Suitable for plumbing and heating applications
- Compatible with BS EN 1057 copper tube systems
- Available across compatible pipe sizes
- Backed by a 75-Year Warranty
Technical Data
Product Overview
Lawton Compression Fittings provide a simple, reliable and reusable jointing solution for potable water, heating and cooling systems. Available in sizes from 6mm to 54mm, the range includes both standard brass and dezincification-resistant (DZR) brass fittings, manufactured in accordance with EN 1254-2.
Applications
- Potable Water Systems
- Heating Systems
- Cooling Systems
Market Sectors
- Domestic
- Commercial
Product Specifications
|
Property |
Specification |
|
Size Range |
6mm – 54mm |
|
Standard Range Material |
CW614N Brass |
|
DZR Range Material |
CW602N Brass |
|
Jointing Method |
Compression |
|
Manufacturing Standard |
EN 1254-2 |
|
Product Marking |
Permanent Marking, Lawton Logo, Size |
|
Electrical Continuity |
Yes |
|
Form of Supply |
Bags and Boxes |
|
Inner Surface Quality |
Clean and Smooth |
|
Thread Specification (Male) |
ISO 7 / EN 10226-1 |
|
Thread Specification (Female) |
BS EN ISO 228 |
|
Warranty |
75 Years* |
Subject to standard Terms & Conditions. Please refer to our website for full details.
Standards & Compliance
|
Category |
Standard |
|
Compression Fittings |
EN 1254-2 |
|
Male Threads |
ISO 7 / EN 10226-1 |
|
Female Threads |
BS EN ISO 228 |
Maximum Operating Pressure
|
Nominal Size |
30°C |
65°C |
95°C |
|
6mm to 15mm |
25 bar |
25 bar |
16 bar |
|
Over 15mm to 28mm |
16 bar |
13 bar |
10 bar |
|
Over 28mm to 54mm |
16 bar |
10 bar |
7 bar |
Torque Settings
|
Nominal Size |
Torque (Nm) |
|
6mm – 12mm |
25 |
|
15mm |
40 |
|
22mm |
60 |
|
28mm |
80 |
|
35mm |
100 |
|
42mm |
180 |
|
54mm |
240 |
Tightening
After hand-tightening the nut, the following additional turns are recommended to achieve a watertight joint:
|
Nominal Size |
Turns |
|
6mm – 28mm |
1 Turn |
|
35mm – 54mm |
3/4 Turn |
Material Composition
|
Material |
Cu (%) |
Zn (%) |
P (%) |
Pb (%) |
As (%) |
Sn (%) |
Fe (%) |
Ni (%) |
Al (%) |
Mn (%) |
Other (%) |
Total Impurities (%) |
|
CW024A |
≥ 99.90 |
— |
0.015 – 0.040 |
— |
— |
— |
— |
— |
— |
— |
— |
≤ 0.060* |
|
CW614N |
57.0 – 59.0 |
Bal. |
— |
2.5 – 3.5 |
— |
≤ 0.3 |
≤ 0.3 |
≤ 0.3 |
≤ 0.05 |
— |
≤ 0.2 |
— |
|
CW602N |
61.0 – 63.0 |
Bal. |
— |
1.7 – 2.8 |
0.02 – 0.15 |
≤ 0.1 |
≤ 0.1 |
≤ 0.3 |
≤ 0.05 |
≤ 0.1 |
≤ 0.2 |
— |
* Excluding phosphorus and silver.
Physical Properties
|
Material |
Melting Point / Range (°C) |
Density (g/cm³) |
Thermal Conductivity (W/m·°C) |
Thermal Expansion 20-300°C (×10⁻⁶/°C) |
Electrical Conductivity (% IACS) |
Modulus of Elasticity (GPa) |
|
CW024A |
1083 |
8.96 |
305 |
16.5 |
65 |
117 |
|
CW614N |
875 – 890 |
8.50 |
120 |
21.0 |
28 |
110 |
|
CW602N |
900 – 920 |
8.43 |
117 |
20.7 |
26 |
— |
Installation & Performance
|
Property |
Specification |
|
Jointing Method |
Compression |
|
Reusable Connection |
Yes |
|
Electrical Continuity |
Yes |
|
Internal Surface Quality |
Clean and Smooth |
|
Product Identification |
Permanent Marking |
