REDUCER COUPLER COMPRESSION

Compression Fittings
PartDescriptionSizeSizeBagBox
COMCP0100810MM X 8MM REDUCING COUPLING COMPRESSION10MM8MM20600
COMCP0150815MM X 8MM REDUCING COUPLING COMPRESSION15MM8MM10140
COMCP0151015MM X 10MM REDUCING COUPLING COMPRESSION15MM10MM10110
COMCP0151215MM X 12MM REDUCING COUPLING COMPRESSION15MM12MM10120
COMCP0221522MM X 15MM REDUCING COUPLING COMPRESSION22MM15MM1060
COMCP0281528MM X 15MM REDUCING COUPLING COMPRESSION28MM15MM1050
COMCP0282228MM X 22MM REDUCING COUPLING COMPRESSION28MM22MM10100
COMCP0352235MM X 22MM REDUCING COUPLING COMPRESSION35MM22MM560
COMCP0352835MM X 28MM REDUCING COUPLING COMPRESSION35MM28MM525

Compression Reducer Coupler

The Lawton Compression Reducer Coupler is designed to provide a secure transition between different copper pipe sizes within compression pipework systems. This fitting allows installers to reduce pipe diameters efficiently while maintaining a dependable connection.

The compression design enables quick and straightforward installation without the need for soldering or specialist tools. The compression nut and olive assembly creates a reliable mechanical seal while providing flexibility during installation and maintenance.

Manufactured to EN 1254-2 standards and suitable for BS EN 1057 copper tube from 8mm to 54mm, the Lawton Compression Reducing Coupler delivers long-lasting performance for plumbing and heating applications. Backed by Lawton’s 75-Year Warranty, it provides confidence in every installation.

Key Features

  • Connects different copper pipe sizes
  • Manufactured to EN 1254-2
  • Suitable for BS EN 1057 copper tube
  • Compatible with pipe sizes from 8mm to 35mm
  • Quick and straightforward installation
  • No soldering or specialist press tools required
  • Secure mechanical compression joint
  • Suitable for plumbing, heating and general pipework applications
  • Durable construction for long-term performance
  • 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/°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

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