Copper tubes for Autogas (LPG/CNG)

Further to the recent enforcement of the new ECE/UN R67- 01 norm, COPTECH has developed high pressure copper pipes for LPG/CNG (auto gas) vehicles able to successfully get through the very stringent tests it contemplates.


Our offer: High pressure soft copper tubes for LPG vehicles

 Our copper tubes for LPG (autogas) vehicles are produced according to

UN EC R67-01 regulative.

LPG copper tube       autogas copper utbes                         

 

In our offer we have copper tubes with black PVC cover with outside diameters Ø 6 and 8 mm with wall thickness 0.8, 0.9 and 1.0 mm.

 

Tubes have "ECE acc. LPG 67r01" mark printed on it PVC cover.


Auto gas copper tubes - dimensions, allowable pressures and weights

Outer diameter

Wall thickness

Weight

Pressure

mm*

mm

(kg/m)**

(bar)***

6

0.8

0.116

115

6

0.9

0.128

129

6

1.0

0.140

145

8

0.8

0.161

87

8

0.9

0.179

97

8

1.0

0.196

109

 

* Values indicated in the table relate to outer diameter (excluding PVC coat). PVC coat thickness ranges from 1.4 to 2.0 mm.

** Copper  tube weight only (excluding PVC coat).

*** Values indicated for pressure in the table above are computed for soft tubes, without PVC cover, with safety factor N=5. Values indicated for allowable pressure relate only to tubes, not to their joints. 

Copper tubes are produced in Serbia according to Quality Management System ISO 9001:2000 and with mechanical properties according to EN 1057:2006 standard. EN 1057 is the European reference standard at continental level for the manufacture of copper gas and water tubes in water and heating applications. Copper tubes have minimally 99.90% of copper.

Mechanical properties according to EN 1057:2006   for soft copper tubes

Temper

Temper designation

Tensile strength (N/mm²)

Elongation (%) A5

Hardness HV5 (approximately)

soft

R220

min. 220

40

40 - 70

 

PVC coating reduce heat loss, prevents burns in users, protects copper tubes from aggressive environments and prolongs its service life. Plastic insulation layer is elastic and enables bending and all other working operations during installation.Autogas tubes

Material used to coat copper tubes is polyvinylchloride (PVC) of the following characteristics:

  • Density: 1400 - 1500 kg/m³ 
  • Elongation: 207 %
  • Breaking strength: 14 N/mm 2
  • Maximum working temperature: +95°C LPG tube
  • Minimum bending temperature: -10°C

 

Green Technology fact

Driving an LPG vehicle is safe, easy, cleaner and, best of all, much cheaper than petrol or diesel.