Copper Pipe Coil & Tubes for Plumbing - Lawton Tubes

Class B Fire Rated Pre-Insulated Coil – Pair – Plumbing

developers — Fri, 30 Apr 2021 09:47:12 +0000

The post Class B Fire Rated Pre-Insulated Coil – Pair – Plumbing appeared first on Lawton Tubes.

Copper Plain Coil

formation — Tue, 27 Aug 2019 09:03:05 +0000

Working Pressures / Mechanical Properties

Dimensions and Tolerances (includes chrome plated and PVC covered)

O.D. (mm)	Wall (mm)	Temper	Max Working Pressure bar up	Thickness Tolerance	Diameter Tolerance Mean	Diameter Tolerance Including Ovality
6	0.6 (TX)	Half Hard	133	±10%	± 0.04mm	±0.09mm
6	0.6	Soft	90	±10%	± 0.04mm	Not applicable
6	0.8 (TY)	Half Hard	188	±10%	± 0.04mm	±0.09mm
8	0.6 (TX)	Half Hard	97	±10%	± 0.04mm	±0.09mm
8	0.6	Soft	66	±10%	± 0.04mm	Not applicable
8	0.8 (TY)	Half Hard	136	±10%	± 0.04mm	±0.09mm
10	0.6 (TX)	Half Hard	77	±10%	± 0.04mm	±0.09mm
10	0.7 (TY)	Soft	62	±10%	± 0.04mm	Not applicable
10	0.8 (TY)	Half Hard	106	±10%	± 0.04mm	±0.09mm
12	0.6 (TX)	Half Hard	63	±10%	± 0.04mm	±0.09mm
12	0.8 (TY)	Half Hard	87	±10%	± 0.04mm	±0.09mm
15	0.7 (TX)	Half Hard	58	±10%	± 0.04mm	±0.09mm
15	1.0 (TY)	Half Hard	87	±13%	± 0.04mm	±0.09mm
15	1.0 (TY)	Soft	67	±13%	± 0.04mm	Not applicable
22	0.9 (TX)	Half Hard	51	±10%	± 0.05mm	±0.10mm
22	1.2 (TY)	Half Hard	69	±15%	± 0.05mm	±0.10mm
22	1.2 (TY)	Soft	57	±15%	± 0.05mm	Not applicable
28	0.9 (TX)	Half Hard	40	±10%	± 0.05mm	±0.10mm
28	1.2 (TY)	Half Hard	55	±15%	± 0.05mm	±0.10mm
35	1.0 (LiteX)	Hard	42	±15%	± 0.06mm	±0.07mm
35	1.2 (TX)	Half Hard	42	±10%	± 0.06mm	±0.11mm
35	1.5 (TY)	Hard	64	±10%	± 0.06mm	±0.07mm
42	1.0 (LiteX)	Hard	35	±15%	± 0.06mm	±0.07mm
42	1.2 (TX)	Half Hard	35	±10%	± 0.06mm	±0.11mm
42	1.5 (TY)	Hard	53	±10%	± 0.06mm	±0.07mm
54	1.2 (TX)	Hard	33	±15%	± 0.06mm	±0.07mm
54	2.0 (TY)	Hard	55	±10%	± 0.06mm	±0.07mm
66.7	1.2 (TX)	Hard	26	±15%	± 0.07mm	±0.10mm
66.7	2.0 (TY)	Hard	45	±15%	± 0.07mm	±0.10mm
76.1	1.5 (TX)	Hard	29	±15%	± 0.07mm	±0.10mm
76.1	2.0 (TY)	Hard	39	±15%	± 0.07mm	±0.10mm
108	1.5 (TX)	Hard	20	±15%	± 0.07mm	±0.20mm
108	2.5 (TY)	Hard	34	±15%	± 0.07mm	±0.20mm
133	1.5 (TX)	Hard	16	±15%	± 0.20mm	±0.70mm
159	2.0 (TX)	Hard	18	±15%	± 0.20mm	±0.70mm
219	3.0 (TX)	Hard	20	±15%	± 0.60mm	±1.50mm

Working pressures are to BS 2871:part1:1971

Water Capacity

Table W Microbore

O/D mm	Capacity kg/m
6	0.0169
8	0.0347
10	0.0558

Table X 6mm – 159mm

O/D mm	Capacity kg/m
6	0.0169
8	0.0347
10	0.0615
12	0.0890
15	0.1416
18	0.2063
22	0.3140
28	0.5308
35	0.8220
42	1.2163
54	2.0712
67	3.2134
76	4.1699
108	8.6107
133	13.2647
159	18.8351

Table Y 6mm – 108mm

O/D mm	Capacity kg/m
6	0.0139
8	0.0302
10	0.0529
12	0.0818
15	0.1280
18	0.1952
22	0.2943
28	0.5050
35	0.7888
42	1.1758
54	1.9317
67	3.2375
76	4.0438
108	8.2527

Expansion of copper tube

Copper has a coefficient of linear expansion of 17 x 10-6oC. for example, a 10 metre length of copper tube carrying hot water at 600C will increase in length by almost 7mm when heated from 200C. Assuming that temperature cycling of the system is 200C, thaere will be a continuous cycle of expansion and contration of 3.4mm. Refer to table below.

Temperature change	3m	4m	5m	6m	7m	8m	9m	10m	12m	25m
10°	0.5mm	0.7mm	0.9mm	1.0mm	1.2mm	1.4mm	1.5mm	1.7mm	2.0mm	4.3mm
20°	1.0mm	1.4mm	1.7mm	2.0mm	2.4mm	2.7mm	3.0mm	3.4mm	4.0mm	8.5mm
30°	1.5mm	2.0mm	2.6mm	3.1mm	3.6mm	4.1mm	4.6mm	5.1mm	6.1mm	13.0mm
40°	2.0mm	2.7mm	3.4mm	4.1mm	4.8mm	5.4mm	6.1mm	6.8mm	8.2mm	17.0mm
50°	2.6mm	3.4mm	4.3mm	5.1mm	6.0mm	6.8mm	7.7mm	8.5mm	10.2mm	21.0mm
60°	3.1mm	4.1mm	5.1mm	6.1mm	7.1mm	8.2mm	9.2mm	10.2mm	12.2mm	26.0mm
70°	3.6mm	4.8mm	6.0mm	7.1mm	8.3mm	9.5mm	10.7mm	11.9mm	14.3mm	30.0mm
80°	4.1mm	5.4mm	6.8mm	8.2mm	9.5mm	10.9mm	12.2mm	13.6mm	16.3mm	34.0mm
90°	4.6mm	6.1mm	7.7mm	9.2mm	10.7mm	12.2mm	13.8mm	15.3mm	18.4mm	38.0mm
100°	5.1mm	6.8mm	8.5mm	10.2mm	11.9mm	13.6mm	15.3mm	17.0mm	20.4mm	43.0mm
150°	7.65mm	10.2mm	12.75mm	15.3mm	17.85mm	20.4mm	22.95mm	25.5mm	30.6mm	63.75mm
200°	10.2mm	13.6mm	17.0mm	20.4mm	23.8mm	27.2mm	30.6mm	34.0mm	40.8mm	85.0mm

The post Copper Plain Coil appeared first on Lawton Tubes.

Copper Plastic Coated Coil

formation — Tue, 27 Aug 2019 09:03:05 +0000

PVC Coated Copper Tubes

The Plastic that we are using for the tube coating is a Low Density Polyethylene along with a World Wide UV stabiliser.

The Physical properties are as follows:

Mechanical

Melting point: 114°C

Vicat Softening Point: 93°C (This can be generally treated as the maximum operating temperature)

Brittleness Point: < -75°C

Hardness: 55 Shore D

Tensile Break: 13.40 MPa

Flexural Strength: 8.10 MPa

Elongation at Break: 500%

Electrical

Volume Resistivity: >1015 Ohm-cm³

Surface Resistivity: >1015 Ohm -cm²

Resistance to some common chemicals below.

Polyethylene and Very Good Chemical Resistance

• Acetatic acid
• Amonium hydroxide 30%
• Calcium hydroxide 30%
• Diethylene glycol
• Ethylene glycol
• Ethanol 100%
• Glycerin
• Glycol
• Hydrogen peroxide 30%
• Mercury
• Methanol
• Potassium hydroxide 30%
• Sodium hydroxide 30%

Polyethylene and Medium Chemical Resistance

• Dibutylether
• Ethylene acetate 100%
• Furfurol 100%
• Heptane
• Paraffin

Polyethylene and Good Chemical Resistance

• Acetone
• Formaldehyde 10-40%
• Gas oil
• Caproic acid
• Iodine
• Isobutanol
• Isopropanol
• Mineral oil
• Motor oil
• Natural gas
• Gasoline
• Phenol
• Tranformer oil
• Vaseline

Polyethylene and Poor Chemical Resistance

• Diethylether
• Ethylenechloride
• Hydrogen peroxide 90%
• Methylene chloride

Polyethylene and None Chemical Resistant

• Acetylene dichloride

This range is ideal for use within walls, outside, underground and in aggressive atmospheres. The covering creates a thermal barrier reducing heat loss underground and condensation from exposure in extreme weather conditions. Tubes are pecifically made in 5.8m lengths for direct loading and shipping in full containers.

Tubes can withstand temperatures from -40 to +120 degrees centigrade.
Tubes can be bent (except 35-54mm) and jointed as per standard plain EN1057 tubes using EN1254 fittings.
To expose bare copper, plastic coating needs to be cut and pulled back away from the joint and flame (if brazing). Once joint has been made coating needs returning back to original position and both joint and cut need to be protected using an impervious plastic tape.

White Plastic Coated Copper Tubes

to BS EN 13349 / BS EN 1057 R250/R290

Product Code	O.D. (mm)	Length (m)	Wall (mm)	Tube Thickness
TXPVCW015	15	5.8 & 6	0.7	1.0
TXPVCW022	22	5.8 & 6	0.9	1.0
TXPVCW028	28	5.8 & 6	0.9	1.0
TXPVCW035	35	5.8 & 6	1.2	1.5
TXPVCW042	42	5.8 & 6	1.2	1.5
TXPVCW054	54	5.8 & 6	1.2	1.5
TXPVCW067	67	5.8 & 6	1.2	1.5
TXPVCW076	76	5.8 & 6	1.5	1.5

PVC Covered Coils

to BS EN 1057 R220

Product Code	O.D. (mm)	Length (m)	Wall (mm)	Tube Thickness
TWPVCBLK008	8 PVC Black	25	0.8	1.0
TWPVCW008	8 PVC White	25	0.6	1.0
TWPVCW010	10 PVC White	25 & 50	0.7	1.0
TWPVCY015	15 PVC Yellow/Blue	25	1.0	1.5
TWPVCY022	22 PVC Yellow/Blue	25	1.2	1.5
TWPVCY028	28 PVC Yellow	20	1.2	1.5

PVC Covered Tube

to BS EN 1057 R250

Product Code	O.D. (mm)	Length (m)	Wall(mm)	Tube Thickness
TXPVCY015	15 PVC Yellow	3 & 6	0.7	1.0
TXPVCY022	22 PVC Yellow	3 & 6	0.9	1.0
TXPVCY028	28 PVC Yellow	3 & 6	0.9	1.0

Green Plastic Coated Copper Tubes

to BS EN 13349 / BS EN 1057 R250/R290

Product Code	O.D. (mm)	Length (m)	Wall (mm)	Tube Thickness
TYPVCG015	15	5.8 & 6	0.7 or 1.0	1.0
TYPVCG022	22	5.8 & 6	0.9 or 1.2	1.0
TYPVCG028	28	5.8 & 6	0.9 or 1.2	1.0
TYPVCG035	35	5.8 & 6	1.0 or 1.5	1.5
TYPVCG042	42	5.8 & 6	1.0 or 1.5	1.5
TYPVCG054	54	5.8 & 6	1.2 or 1.5	1.5
TYPVCG067	67	5.8 & 6	2.0	1.5
TYPVCG076	76	5.8 & 6	2.0	1.5
TYPVCG108	108	5.8 & 6	2.5	1.5

Nature of Heat Insulator

Test	Unit	Onside of insulator	Inside of insulator
Tensile Strength	N/mm [kg/cm²]	31.5²10 [3.2]	29.5²10 [3.0]
Elongation	%	70	100
Compression strain	% (25%)	3.4	6
Water absorbing capacity	G/m²	0.003	0.008
Conductivity factor	W/(mk²) [kcal/m²hm²]	0.040(0.035)	0.038(0.033)
Temperature of heat resisting		-40 ~120	-40 ~120

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