Introduction Lawton Tube has been supplying the UK and International market for nearly one hundred years. Having developed a reputation for strength, quality and reliability, Lawton are market leading producers and suppliers of copper tubes. All Lawton’s tube and fittings are available from leading national and independent wholesalers.

Lawton’s ACR product range includes: • Straight lengths • Coils • Lawton Dual • Lawton K65 • Fittings • Brazing rods

Demand Lawton’s copper for: • Air conditioning and refrigeration installations • CO2 supermarket refrigeration • Commercial and domestic applications • Bespoke OEM applications • General engineering applications

Lawton’s ACR products were used in many prestigious projects including: • UK Olympic Stadium and Village • All major UK supermarkets • Harrods of London • The Shard

Whether you’re talking about our business or our product, Lawton’s Copper Tubes offer: • Strength • Quality • Reliability

The ACR industry is a demanding one, so demand Lawton Tubes

We are proud to have supplied such prestigious venues throughout the UK from our extensive stocksOliver Lawton MD

Refrigeration tube - EN 12735-1 Pipeline solutions for refrigeration and air conditioning Our copper tube is designed specifically for refrigeration and air conditioning use and accordingly cleaned, nitrogen-purged and capped.

The commitment that we have to stock levels allows us to meet the most demanding of customer requirements. We offer a complete range of tube from 3/16” O.D. to 4,1/8” O.D.

All product is clearly marked for identification and traceability in line with PED requirements, both by inkjet marking and engraving to include manufacturer, production date, batch code, tube size, EN 12735-1 and temper.

Copper Straight Tube to EN 12735-1 R250/R290

O.D. (inches)

3/8 3/8 1/2 1/2 5/8 5/8 3/4 3/4 3/4 7/8 7/8 7/8

1 1/8 1 1/8 1 1/8 1 3/8 1 3/8 1 3/8 1 3/8 1 5/8 1 5/8 1 5/8 1 5/8 1 5/8 2 1/8 2 1/8 2 1/8 2 1/8 2 5/8 2 5/8 2 5/8 2 5/8 3 1/8 3 1/8 3 1/8 3 5/8 3 5/8 4 1/8 4 1/8 4 1/8

Gauge (SWG)

21 18 20 18 20 18 19 18 16 18 16 12 18 16 14 18 16 14 12 18 16 14 12 11 18 16 14 12 18 16 14 12 16 14 12 16 14 16 14 12

Length (m)

3 & 6 6

3 & 6 6

3 & 6 6

3 & 6 3 & 6

6 3 & 6

6 6

3 & 6 3 & 6

6 3 & 6 3 & 6

6 6

3 & 6 3 & 6

6 6 6

3 & 6 3 & 6 3 & 6

6 3 & 6 3 & 6

6 6 6 6 6 6 6 6 6 6

3m Lengths

800 -

600 -

450 -

300 250

- 250

- -

200 150

- 130 55 - -

100 - - - -

100 50 - - - - - - - - - - - - - -

6m Lengths

400 -

300 -

225 -

150 125

- 125

- -

100 75 -

75 110

- -

50 - - - - - - - - - - - - - - - - - - - -

Estimated Tubes per CaseWall (inches)

0.032 0.048 0.036 0.048 0.036 0.048 0.040 0.048 0.064 0.048 0.064 0.104 0.048 0.064 0.080 0.048 0.064 0.080 0.104 0.048 0.064 0.080 0.104 0.116 0.048 0.064 0.080 0.104 0.048 0.064 0.080 0.104 0.064 0.080 0.104 0.064 0.080 0.064 0.080 0.104

Standard Range Copper Coiled Tube to EN 12735-1 R220

Economy Range Copper Coiled Tube to EN 12735-1 R220

Actual Coils per Box O.D. (inches)

O.D. (inches)

3/16 1/4

5/16 5/16 3/8 1/2 5/8 3/4 7/8

1/4 3/8 1/2 5/8 3/4

Wall (inches)

Wall (inches)

0.028 0.028 0.028 0.036 0.032 0.032 0.036 0.040 0.040

0.020 0.020 0.022 0.028 0.032

Gauge (SWG)

Gauge (SWG)

22 22 22 20 21 21 20 19 19

25 25 24 22 21

Length (m)

Length (m)

Box Qtys15m

Lengths 30m

Lengths

30m 6, 15 & 30

30 30

6, 15 & 30 6, 15 & 30 6, 15 & 30

15 & 30 15

15 15 15 15 15

12 8 6 5 3

- 10 - - 7 5 4 3 2

- 6 - - 4 3 2 1

Lawton Dual Some things were meant to be together...

Lawton Dual The new generation of tubing for ACR applications

Lawton Dual uses a metallurgical bond of a copper core and aluminium exterior, making a system that has all the strength and durability of copper, but is considerably cheaper, and lighter, thanks to its aluminium content.

The product looks like an aluminium tube from the outside, but like a copper tube from the inside. The cross section (opposite) shows the two metals in layers. The copper and aluminium are unified by a metallurgical bond to become one single homogenous tube demonstrating the beneficial properties of both metals.

Lawton Dual is ideal for the air-conditioning unit installation market, with capabilities that are ideal for connecting split-type air-conditioning units. The installer can work with it just as they would normal copper tubing, as it still joins perfectly to other copper tubes.

The process for joining Lawton Dual to other copper tubes remains simple. Expanding the end of the tube exposes the copper inner, allowing copper to copper contact. A heat shrinkable jacket is supplied free with the product for sealing the dual tube to the brass flare nut on the air conditioning unit. Having stood up to numerous corrosion tests, Lawton’s are confident that the durability and reliability of the joins will not be compromised.

The tube feels, bends and flares just like a normal copper system. It doesn’t require any expensive tools, lots of special fittings or different processes.

Dual is available in various standard sizes from 1/4” to 5/8”, and is delivered in the usual 15m and 30m coils. All sizes can withstand a maximum working pressure of 55bar (800psi), so are compatible with systems operating the latest generations of refrigerants such as R410A. Duals capabilities are far in excess of today’s refrigerant requirements for air conditioning. Installers can use Lawton Dual with complete confidence, knowing that it will be strong enough for any current requirements.”

By virtue of the copper interior, the tube still retains all the strength, corrosion resistance and durability of copper, but the inclusion of aluminium, makes it much lighter than usual. The installation process is less cumbersome, particularly for installers working in tricky overhead conditions.

Its key selling point at the moment, however, has to be its price. Reducing the amount of copper needed to make the tube has reduced the cost significantly. The lower weight will also reduce transport costs as less weight uses less fuel. The aluminium exterior also hides the valuable copper interior, reducing the risk of theft.

Copper/Aluminium Coiled Tube

O.D. (inches)

1/4 3/8 1/2 5/8

Wall (mm)

0.8 1.0 1.0 1.2

Length (m)

15 & 30 15 & 30 15 & 30 15 & 30

15m Lengths

12 8 6 5

30m Lengths

6 4 3 3

Actual Coils per Box

In refrigeration, and in particular in the area of supermarket refrigeration systems, more and more ecology-oriented plant concepts are being implemented.

The modern, environment-friendly refrigerant CO2 that is used here leads to high operating pressures. For these applications the new K65 tube system is available.

Tubes and fittings are made of the high-strengthcopper alloy K65 which has already been used with success in electrical engineering and the automotive industry. K65 allows economical installation of refrigeration systems with operating pressures up to 120 bar.

K65 has good processing properties which are similar to those of copper. K65 tubes may be brazed to K65 fittings in the traditional way. K65 fittings are manufactured by IBP Conex. Safety ensured by two well-known manufacturers K65 tubes and K65 fittings fall under a joint system guarantee that includes CO2 applications up to 120 bar for the items listed.

Easy to identify – even after installationK65 tubes and fittings are marked appropriately, so that the system components can be clearly identified at all times. In addition, the material is slightly magnetic and can easily be distinguished from copper by means of a neodymium magnet – a helpful, practical advantage.

EconomicalThe main advantage is the mechanical strength of K65. Because of the high strength of the material, the K65 product can be made with comparatively thinner walls. The light weight of tubes made of K65 means not only a saving in material, but also easier handling, for example when mounting the tubes on ceilings.

Lawton K65 The tube system for high pressure applications

Further dimensions for industrial applications, and also for other pressures, are available according to customer specifications.Changes in surface colour are possible with this material. However, these changes are purely optical and will not affect the technical performance.

K65 Tubes for CO2 Applications

O.D. (inches)

3/8 1/2 5/8 3/4 7/8

1 1/8 1 3/8 1 5/8

Length (m)

5 & 6 5 & 6 5 & 6 5 & 6 5 & 6 5 & 6 5 & 6 5 & 6

80 Bar

Wall (mm)

- 0.60 0.75 0.90 1.00 1.30 1.60 1.90

120 Bar

Wall (mm)

0.65 0.85 1.05 1.30 1.50 1.90 2.30 2.70

Manufactured to ASME B16.22 Lawton’s ACR fittings are all seamless, one piece fittings, which makes them stronger and easier to use. All Lawton’s fittings are available from 3/16” to 4 1/8” for use with our entire range of ACR tubes.

Regularly needed for large supermarket projects we can supply high pressure fittings for CO2

applications. All fittings from stock for quick delivery.

Wherever possible all our fittings are engraved for additional traceability.

We offer a variety of silver solder brazing alloys suitable dependent upon product type and application.

Fittings & Accessories

ISO 9001:2008FM451

The Lawton Tube Co. Ltd Torrington Avenue, Coventry CV4 9AB

Telephone: (024) 7646 6203 Fax: (024) 7669 4183

E-mail: sales@lawtontubes.co.uk

www.lawtontubes.co.uk