Main Service Pipe

The production standards of copper pipes are given in the table below.

Production Standards

TS EN 1057+A1

TS EN 12449+A1

TS EN 12451

TS EN 13600:2013

Rigid Polyurethane (PUR) Insulation

Rigid polyurethane foam is an insulation material with an extremely low thermal transmission coefficient, consisting of mixing of polyol and isocyanate in certain ratios and pressure injection of these materials. PUR, which is injected between the carrier pipe and the casing pipe (HDPE), provides heat insulation as well as enables two pipes to operate as one pipe by bonding them together and filling in the space between the pipes longitudinally. In the manufacturing of pre-insulated geothermal pipes, the PUR in accordance with the standard TS EN 253 has to meet the following minimum requirements:

Technical Specifications

Components

Polyol and Isocyanate

Minimum cellular mass density

55 kg/m3 ISO 845

Max. Thermal Conductivity Coefficient

0,029 W/mK ISO 8497

Average cell structure

< 0,5 mm

Closed cell content

> %88 ISO 4590

Min. Radial Compressive Strength

0,30 MPa ISO 844

Water absorption at high temperature

< 10% when tested according to TS EN 253 5.3.5

Axial cutting strength

23 °C ± 2 °C ≥ 0,12 N/mm²

140 °C ± 2 °C ≥ 0,08 N/mm²

Temperature range

-50 °C / +148 °C

Impact strength

No damage must exist - when tested in accordance with EN 253 5.4.5
ISO 3127

Linear Water Tightness

Must be Watertight When tested in accordance with EN 253 5.4.6

Chlorofluorocarbon

None

The service life of insulation according to continuous service temperature

3 years at 140 ˚C

30 years at 120 ˚C

50 years at 115 ˚C

HDPE Casing Pipe

Extruded polyethylene casing pipe is used on the outermost part, which protects the insulation material from external factors and chemicals. The HDPE casing pipe manufactured in accordance with the standards TS EN 253 and TS EN 12201-2 must contain antioxidants, UV stabilisers and carbon black.

Technical Specifications

Standard

EN 253, EN 12201-2

Dimensions

EN 253 part 4.3.2.2 table5

Material

PE 80 – PE 100 ISO 9080

Density

> 944 kg/m3 ISO 1133

Thermal Conductivity Coefficient

0,43 W/mK

Thermal Stability (OIT)

> 20 min (210 °C) ISO 11357-6

Temperature Range

40 °C / + 80 °C

Cracking resistance under stress

> 300 hrs (4 MPa, 80 °C) ISO 16770

Post-thermal treatment changes

<%3 no damage must exist) ISO 2505

Melt Flow Index (MFI 190°C/5kg)

0,2 < MFR ≤ 1,0 g/10dk ISO 1133

Carbon black content

> by mass 2.5% ± 0.5 ISO 6964

Carbon black propagation degree

<3 ISO 18553

Breaking elongation

>% 350 ISO 6259-1

Hydrostatic Strength

10,8 bar

80°C 165 sa ISO 1167-1-2

Inner surface treatment

Corona process on extruded line (on-line)

UV Protection

Yes

Copper Pipes
PRODUCT NOMINAL SIZE COPPER PIPE HDPE CASING PIPE PUR PIPE LENGTH INSULATED PIPE WEIGHT(kg/m)
DN INCH Outer Diameter dₐ (mm) Wall Thickness t (mm) kg/m Outer Diameter D (mm) Wall Thickness (mm) Inner Diameter (mm) Thickness (mm) L (mt)
Ø 20/90 20 3/4" 20 1,50 0,78 90 3,0 84,0 32 6 1,97
Ø 25/90 25 1" 25 1,50 0,99 90 3,0 84,0 29,5 6 2,17
Ø 30/110 32 1 1/4" 35 1,50 1,41 110 3,0 104,0 34,5 6 2,96
Ø 40/110 40 1 1/2" 42 2,20 2,45 110 3,0 104,0 31 6 3,98
Ø 50/125 50 2" 54 3,70 5,20 125 3,0 119,0 32,5 6 7,00
Ø 65/140 65 2 1/2" 64 4,40 7,33 140 3,0 134,0 35 6 9,42
Ø 80/160 80 3" 80 2,30 5,00 160 3,0 154,0 37 6 7,47
Ø 100/200 100 4" 105 2,50 7,17 200 3,2 193,6 44,3 6 10,71
Ø 100/200 100 4" 108 4,50 13,02 200 3,2 193,6 42,8 6 16,52
  • Non-insulated pipe ends will have a length of 150 - 250 mm ±10 mm
  • Upon request, manufacturing can be made in lengths, diameters and insulation thicknesses different from the values in the table.
  • Our company reserves the right to make changes on this and all other data in the brochures, written documentation and on our website. You may contact our company for getting up-to-date information.
  • Copper pipe outer diameters, wall thicknesses and unit weights may vary depending on the request.
 
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