Steel pipes 2.1 - isoplus

06.12.2010
Steel pipes 2.1
The pipe system
Isoplus’s preinsulated pipe systems are fixed pipe systems.
The pipes consist of a steel carrier pipe and an
HDPE casing pipe, which are cast into a fixed sandwich
structure with polyurethane insulation.
Steel pipe
Standard quality, longitudinal weld or spiral weld,
P235TR1, P235TR2 or P235GH.
Technical terms of delivery as per EN253.
Weld factor V = 1.0
Test certificate as per EN 10 204 - 3.1.
Bevelled ends as per DIN 2559 T1/22 and ISO 6761.
Insulation
The insulation is polyurethane foam with cyclopentane
blowing agent, for optimum insulation values.
Compressive strength: 0.3 N/mm2
Continuous operating temperature, single pipe 143°C
Continuous operating temperature, double pipe 130°C
By special order, Isoplus can supply preinsulated pipes
that can withstand a continuous operating temperature
of 161°C.
Casing pipe
The casing pipe is made of non-cross-linked hard polyethylene
that is resistant to impact and fracture.
Material: HDPE
Density: over 940 kg/m3
Melt flow index: 0.3-0.8g/10 min.
as per ISO 1133
Elongation at fracture: min. 350%
Internal corona treatment: to optimise bonding characteristics.
Finished pipe
The finished pipe at least meets the requirements in DS/
EN 253. The axial shear strength of the finished pipe,
between the steel pipe, PUR and casing pipe, is at least
0.12 N/mm2.
Exposed end of steel pipe: 220 mm
Standard lengths: 6, 12 and 16 m
Corrosion protection is applied to exposed ends on delivery.
All continuously produced pipes include a gas diffusion
barrier.
Alarm system
Isoplus pipes and components can be supplied with two
integrated copper wires (1.5 mm2) for electronic monitoring.
Fittings
All fittings are produced in accordance with the requirements
in DS/EN 448 and DS/EN 488
Isoplus Fjernvarmeteknik A/S · Tel.: +45 64 41 61 09 · Fax: +45 64 41 61 59 · E-mail: iso@isoplus.dk · www.isoplus.dk

PEXflex 2.2
Pipe system
Isoplus pre-insulated PEX pipes are complete piping
systems. The pipes consist of a PEX carrier pipe and
an LDPE jacket pipe merged into a complete unit with
insulating polyurethane foam. The flexible insulation
and LDPE jacket pipe ensure maximum flexibility.
PEX pipe
The carrier pipe is made of cross-linked polyethylene
(PE-X) to DIN 16892 and dimensioned to DIN 16893.
Heating pipes
Dimensions to series 1
Operating pressure: max. 6 bar, PN 12.5 at 20ºC
EVAL oxygen diffusion barrier to DIN 4726
Operating temperature: max. 95ºC
Continuous operating temperature: max. 80ºC
Domestic water pipes
Dimensions to series 2
Operating pressure: max. 10 bar, PN 20 at 20ºC
Operating temperature: max. 95º C
Continuous operating temperature: max. 80ºC
Insulation
The pipes are insulated with polyurethane, foamed
using the blowing agent cyclopentane, thus ensuring
optimum insulation values.
Density (to DIN EN ISO 845): approx. 60 kg/
m 3
Compressive strength: ≥ 0.2 MPa
Closed cells: ≥ 88%
Jacket pipe
Material: LDPE
Density: approx. 916 kg/m 3
Melt index: 0.30 g/10 min
PE diffusion barrier between jacket pipe and foam.
Approval
Domestic water pipes are VA approved in dimensions
20-63 mm.
Gas diffusion barrier
PE jacket pipe
PE diffusion barrier
Polyurethane
Isoplus Fjernvarmeteknik A/S · Tel.: +45 64 41 61 09 · Fax: +45 64 41 61 59 · E-mail: iso@isoplus.dk · www.isoplus.dk
PEX pipe
01.03.2006

31.01.2007
Copper pipes/CuFlex 2.3
Pipe system
12 metre lengths
Isoplus pre-insulated copper pipes are complete piping
systems. The pipes consist of a copper carrier pipe and
an HDPE jacket pipe bonded to form a complete sandwich
construction with insulating polyurethane foam.
Flex pipes
Isoplus pre-insulated CuFlex pipes are complete piping
systems. The pipes consist of a copper carrier pipe and
an LDPE jacket pipe bonded to form a complete unit
with insulating polyurethane foam. The flexible insulation
and LDPE jacket pipe ensure maximum flexibility.
Copper pipes
Straight copper pipes are made of cold drawn, seamless,
hard copper piping to EN 1057. Dimensions and
tolerances to DIN 1754.
Material - half hard copper (R250) - 5 m lengths
Material - annealed copper (R220) - 12 m lengths
Terms of delivery in accordance with DIN 17671.
CuFlex pipes are made of cold drawn, seamless
annealed copper piping to EN 1057. Dimensions and
tolerances to DIN 1754.
Material - annealed copper (R220).
Terms of delivery in accordance with DIN 17671.
Pipes are joined by means of capillary brazing (using
either flaring or braze fittings) or press couplings.
Max. operating pressure 25 bar
Insulation
The pipes are insulated with polyurethane, foamed
using the blowing agent cyclopentane, thus ensuring
optimum insulation values.
Density (to DIN EN ISO 845): min. 60 kg/m 3
Compressive strength: ≥ 0.2 MPa
Closed cells: ≥ 88%
Continuous operating temperature: max. 130ºC
Jacket pipe (Flexible pipe)
Material: LDPE
Density: approx. 916 kg/m 3
Melt index: 0.3 g/10 min
Aluminium diffusion barrier between jacket pipe and foam.
Jacket pipe (Straight pipe)
As straight pipe page 2.1.
Gas diffusion barrier
Only on CuFlex pipes.
PE jacket pipe
Aluminium diffusion barrier
Isoplus Fjernvarmeteknik A/S · Tel.: +45 64 41 61 09 · Fax: +45 64 41 61 59 · E-mail: iso@isoplus.dk · www.isoplus.dk
Polyurethane
Copper pipe

SteelFlex 2.4
Pipe system
Isoplus pre-insulated SteelFlex pipes are complete
piping systems. The pipes consist of a steel carrier pipe
and an LDPE jacket pipe bonded to form a complete unit
with insulating polyurethane foam. The flexible insulation
and LDPE jacket pipe ensure maximum flexibility.
Steel pipes
Steel pipes are made from cold drawn, soft, seamless,
precision steel piping to DIN 17175/2448, RST 35.8/I with
maximum wall thickness. Tolerance to DIN 2391 with
approved certificate to EN 10204/3.1B.
Operating pressure: max. 25 bar
Insulation
The pipes are insulated with polyurethane, foamed
using the blowing agent cyclopentane, thus ensuring
optimum insulation values.
Density: min. 60 kg/m 3 (to DIN EN ISO 845)
Compressive strength: ≥ 0.2 MPa
Closed cells: ≥ 88%
Continuous operating temperature: max. 130ºC
Jacket pipe
Material: LDPE
Density: approx. 916 kg/m 3
Melt index: 0.3 g/10 min
Aluminium diffusion barrier between jacket pipe and foam.
Gas diffusion barrier
PE jacket pipe
Aluminium diffusion barrier
Polyurethane
Isoplus Fjernvarmeteknik A/S · Tel.: +45 64 41 61 09 · Fax: +45 64 41 61 59 · E-mail: iso@isoplus.dk · www.isoplus.dk
Steel pipe
01.03.2006

01.03.2006
AluPEX 2.5
Pipe system
Isoplus pre-insulated AluPEX pipes are complete piping
systems. The pipes consist of an composite carrier pipe
and an LDPE jacket pipe bonded to form a complete unit
with insulating polyurethane foam. The flexible insulation
and LDPE jacket pipe ensure maximum flexibility.
AluPEX
AluPEX pipes are a sandwich construction consisting
of cross-linked PEX, aluminium and an outer layer of
cross-linked PEX.
Operating temperature: max. 95°C
Peak load: max. 110°C
Operating pressure: max. 10 bar
Insulation
The pipes are insulated with polyurethane, foamed
using the blowing agent cyclopentane, thus ensuring
optimum insulation values.
Density (DIN EN ISO 845): min. 60 kg/m 3
Compressive strength: ≥ 0.2 MPa
Closed cells: ≥ 88%
Jacket pipe
Material: LDPE
Density: approx. 916 kg/m 3
Melt index: 0.30 g/10 min
Aluminium diffusion barrier between jacket pipe and foam.
Approval
AluPEX pipes are VA approved.
Gas diffusion barrier
PE jacket pipe
Aluminium diffusion barrier
Isoplus Fjernvarmeteknik A/S · Tel.: +45 64 41 61 09 · Fax: +45 64 41 61 59 · E-mail: iso@isoplus.dk · www.isoplus.dk
Polyurethane
AluPEX pipe