Smooth and innergrooved tubes

K65 - Sustainable and efficient

Sustainable and efficient – two keywords that have had a decisive impact on our time and have gained in relevance in recent years, especially in refrigeration. Increased environmental awareness in society and industry has therefore led to a kind of renaissance of natural refrigerants, especially CO₂. Wieland supports this turnaround with a tube system that meets the high requirements of CO₂ as a refrigerant.

Wieland K65 tubes have been designed for CO₂ applications in the commercial field, especially that of supermarket refrigeration systems. Wieland K65 alloy provides the mechanical strength high enough to withstand the high operating pressures of CO₂. At the same time, K65 tubes have outstanding processing properties, similar to those of standard copper (Cu-DHP/C12200). 

All Wieland K65 tubes are available in the soft condition (R300/O61) to ensure excellent bending / flaring and collaring properties.

Wieland K65 tubes are offered from stock in two pressure ranges, 80 bar and 120 bar, and in dimensions ranging from 3/8” up to 2-1/8”.

Moreover, K65 tubes are also available in individual dimensions and different delivery forms.
For industrial processing, in particular CO₂ heat exchanger (evaporator / gas cooler) manufacturing, level wound coils (LWC) are offered.

More K65 products in other categories

• K65 in Refrigeration and medical gas tubes
• K65 Industrial tubes innergrooved

Your benefits

• Pressure resistance tailormade to your needs
• Cost reduction through weight reduction
• Proven processing technology: brazing instead of welding!
• Excellent heat transfer
• Design according to EN 14276 - TUEV or UL certification on demand

Typical applications

• Components of R744 refrigeration systems
• Fin coil heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers )
• Shell and tube heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers)

Technical properties

• Material: K65
• Conditions: soft R300/O61 and hard R420/H80 
• Delivery form: Level wound coils or straight lengths
• Coil weights: 100 kg, 150 kg, 300 kg
• Available dimensions: 5 - 28 mm for LWC; 5 - 110 mm for straight lengths
• Usual standards: EN 12735-1 / EN 14276 / ASTM B 1017

Further information

• K65 Brochure
• Saxonia Brazing recommendation
• K65 Website

cuproclima

For high-quality seamless inside smooth or innergrooved copper tubes in level-wound coils for the refrigeration and air-conditioning industries. The specified quality and inspection criteria exceed the existing requirements of standards (e. g. EN 12735-2, ASTM).

Your benefits

• longer run time for machines when uncoiling tubes
• reduced scrap for finished products
• reduced set-up time
• detection of even smaller surface defects on the tubes
• possible malfunctions of finished equipment during pressure testing are reduced
• fewer impurities in the refrigerant circuit.

Fields of application

• air-cooled heat exchangers for the air-conditioning and refrigeration industry
• evaporators
• condensers
• heat exchangers
• air coolers

Technical Properties

• Materials Cu-DHP
• Conditions soft and extra soft
• Delivery form level wound coils only
• Coil weights  100 kg, 150 kg, 300 kg
• Available dimensions 4 - 28 mm, wall thicknesses on request

Copper tubes with ultra clean inner surface for industrial applications

Our innovative production process for cuproclean tubes removes carbon film. This results in higher reliability, longer life and reduced maintenance costs.It is suitable for all fresh water applications. Copper offers outstanding versatility and is characterized by excellent formability as well as good processing properties. cuproclean copper tubes are also available in combination with other qualities such as cuproform.

Your benefits

• ultra-clean tube surface free from carbon film
• highest reliability and longer life also in fresh water applications
• best corrosion resistance
• carbon film test according to EN 1057 and confirmation in the certificate

Fields of application

• cooling ceilings
• solar water heating systems
• heat generators

Technical properties

• Materials Cu-DHP 
• Conditions Soft 
• Delivery form Level wound coils 
• Coil weights 100 kg, 150 kg, 300 kg
• Available dimensions 6 - 28 mm, wall thicknesses on request

High formable copper tubes

In boiler manufacture, for example the tubes may be formed by: expanding, bending, upsetting and beading. Industrial copper tubes from conventional production do not always meet these high demands. Therefore, it is often necessary to use additional fittings made from other materials. This results in further production steps and consequently higher production costs.

Your benefits

• no special fittings necessary; this results in lower costs of production
• higher added value in your production
• exceptional forming properties – 80% expansion of the tube end tested and certified on the inspection certificate
• less scrap with very high deformation

Fields of application

• Connecting pieces, e.g. especially for boilers

Technical properties

• Materials Cu-DHP 
• Conditions soft and extra soft
• Delivery form Layer-wound coils and straight lengths
• Coil weights 100 kg, 150 kg, 300 kg, 530 kg
• Available dimensions 6 - 28 mm for LWC; 6 - 64 mm for straight lengths

Copper tubes with high-purity outer surface for solar thermal applications

In the process of manufacturing solar heat absorbers requirements vary depending on the application. In the solarclean family you will find the most suitable copper tube quality for your optimized fabrication.

solarclean classic
The particularly clean tube surface ensures a high quality weld. You can therefore save at least one cleaning operation or an extensive pre-treatment of the components to be welded.

solarclean HP
For heat pipes in vacuum tube collectors - highest surface cleanliness on tube outside and inside prevents contamination of the heat transfer medium in the heat pipe and yet ensures the efficiency of the system.

solarclean plus
Improved forming properties for the fabrication of meander-shaped absorber tubes facilitate the setting of the bending machines and increase process reliability. solarclean_plus ensures super clean tube surfaces substantially improving the ultrasonic welding process.

solarclean eco
The cost-effective alternative for laser welding of absorber plate and tubing with sufficient cleanliness.

solarclean SL
Like solarclean classic, solarclean SL ensures superclean tube surfaces. Depending on your fabrication needs, you can also order solarclean in straight lengths.

Technical properties

• Materials Cu-DHP 
• Conditions hard, hard relaxed, half-hard
• Delivery form Layer-wound coils and straight lengths
• Coil weights 100 kg, 150 kg, 300 kg, 530 kg
• Available dimensions 6 - 15 mm; wall thicknesses 0.3-1.2 mm

For a more sustainable future in construction.

With its 100 % share of recycled material, the cuprolife copper tube makes a sustainable difference, and thus makes a significant contribution to the advancement of building and construction as well as building services. 

Every cuprolife tube from Wieland is manufactured in keeping with the mass balance approach – using a process with 100 % recycled copper. As the starting point when verifying cuprolife, TÜV SÜD tested the procedure for calculating the 100 % recycled content*.

The new standard in copper tubes: cuprolife^®.

Thanks to cutting-edge manufacturing techniques, cuprolife tubes exceed even the highest requirements. Optimal efficiency and reliability are guaranteed along with an exceptional service life. cuprolife tubes are universally usable. cuprolife is permanently in stock and can be supplied in any size from 6 x 1 mm to 159 x 3 mm.

Fields of application

• Domestic hot and cold water supply
• Heating
• Gas
• Liquid gas
• Heating oil / biofuel oil B10
• Solar systems
• Rainwater
• Industrial compressed air
• Sprinkler systems
• Firefighting systems

Technical features

• 100 % recycled copper*
• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification: DV-7204AU2106 (6 to 159 mm outside diameter)
• Universal use in a range of finely differentiated dimensions
• Optimum availability and compatibility with a wide range of fittings
• Maximum operating temperature at 10 bar operating pressure: 250 °C (applies to dimensions up to DN 150)
• Fire resistance: EN 13501-1 – A1 (nonflammable)
• Dimensions according to DVGW GW 392 (6 to 159 mm) with closed tube ends
• For optimal drinking water hygiene

*Mass balance approach, based on ISO 14021, verified by TÜV SÜD.

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Reliable for all areas of home installation

For many years, installers have been relying on SANCO branded copper tubes. The tubes are very reliable, suitable for all areas of domestic installation and have more than proven their worth in practice. Whether drinking water supply (hot and cold), heating systems, oil, gas and liquid gas supplies as well as thermal solar systems: Wieland SANCO tubes are always the right choice and, of course, covered by the relevant regulations.

Technical features

• Patented manufacturing process: SANCO tubes are significantly better than required by standards and regulations.
• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification:
  DV-7204AU2106 (12 to 159 mm outside diameter).
• Universal use in a range of finely differentiated dimensions
• Optimum availability and compatibility with a wide range of fittings
• Maximum operating temperature: 250 °C 
• Fire resistance: EN 13501-1-A1 (non-flammable)
• Dimensions according to DVGW GW 392 (12 to 159 mm) with closed tube ends
• For optimal drinking water hygiene
• Wide range of certifications available, such as Kitemark, Afnor, KIWA, DVGW and many others

Fields of application

• Domestic hot and cold water supply
• Heating systems
• Gas and oil services for heating and cooking
• Solar systems
• Rainwater
• Industrial compressed air
• Sprinkler and Fire-fighting-systems
• Further applications in consultation with our technical advisory service

WICU

WICU tubes a have a mill-applied protective coating. They are therefore suitable for concealed installation under plaster or in environments with an aggressive atmosphere, and for installation outdoors, either above or below ground. 

Technical features

• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification:
• DV-7204AU2106 (12 to 42 mm outside diameter).
• Protective coating conforms to EN 13349 and DIN 30672-1 class B
• Reduction of condensation
• Fire resistance: EN 13501-1-E
• Color of coating: light gray
• Temperature range up to 100 °C

Fields of application

• Domestic hot and cold water supply
• Heating systems
• Gas and oil services for heating and cooking
• Rainwater
• Industrial compressed air
• Further applications in consultation with our technical advisory service

cuprotherm CTX

cuprotherm CTX tubes are copper tubes with a firmly adhering coating. Due to their structure, they are very easy to process and are characterized by a flexibility so far unknown for metal tubes. CTX tubes are a technically high-quality and at the same time economically interesing solution: They offer an attractive price per meter for copper tubes at stable conditions, and are therefore also convincing in terms of reliability in planning. 

Technical features

• Flexible copper tube made of pure copper Cu-DHP
• Temper: soft R220 according to EN 1057 with firmly adhering coating made of PE-RT 
• Fire behavior EN 13501-1, class E
• Color of the coating: white, similar to RAL 9010 (pure white)
• Temperature application range: up to 100 °C

Fields of application

• Heating
• Cooling
• Radiator connection
• Rainwater harvesting systems
• Ground collectors (water/glycol)
• Concrete core activation

The cuproGas® tubes are pre-coated copper tubes for use in customer natural gas and liquid gas systems. The cuproGas® tubes and the WICU® copper tubes 22mm comply with the requirements of ÖVGW guideline G K21 for customer natural gas systems and guideline F G21 for liquid gas systems and have ÖVGW quality mark certificate no. G 2.789. Together with >B< -Press Gas Fittings they form a reliable system.

ÖVGW quality mark certificate no. 2.789 for cuproGas pipes + WICU pipes and gas
Price list | cuproGas system

K65 - Sustainable and efficient

two keywords that have had a decisive impact on our time and have gained in relevance in recent years, especially in refrigeration. Increased environmental awareness in society and industry has therefore led to a kind of renaissance of natural refrigerants, especially CO2. Wieland supports this turnaround with a tube system that meets the high requirements of CO2 as a refrigerant.

Wieland K65 tubes have been designed for CO2 applications in the commercial field, especially that of supermarket refrigeration systems. Wieland K65 alloy provides the mechanical strength high enough to withstand the high operating pressures of CO2. At the same time, K65 tubes have outstanding processing properties, similar to those of standard copper (Cu-DHP/C12200). 
Wieland K65 tubes are offered from stock in two pressure ranges, 80 bar and 120 bar, and in dimensions ranging from 3/8” up to 2-1/8”.

All Wieland K65 tubes are available in the soft condition (R300/O61) to ensure excellent bending / flaring and collaring properties.

Other dimensions and delivery forms such as level wound coils are offered for industrial processing, in particular manufacturing of CO2 heat exchangers (evaporator/gas cooler).

More K65 products in other categories

• K65 Industrial tubes smooth
• K65 Industrial tubes innergooved

Your benefits

• Cost reduction through weight reduction
• Proven processing technology: brazing instead of welding!
• Economical and safe installation of regrigeration systems with up to 120 bar operation pressure
• Excellent heat transfer
• Design according to EN 14276 

Typical applications

• Pipelines for refrigeration systems, in particular for CO2 refrigerant, with an operation pressure of up to 120 bar

Technical properties

• Material: K65
• Operation pressure: 80 bar and 120 bar
• Condition: soft R300/O61
• Delivery form: straight lengths of 5 m
• Available dimensions: 9,52 - 53,97 mm (3/8" - 2-1/8")
• Tube ends: closed
• Usual standards: EN 14276 / EN 12735-1 

Further information

• K65 Brochure
• Saxonia Brazing recommendation
• K65 Website

cuprogeo – geothermal energy

The seamless drawn cuprogeo tube is used for geothermal energy production. cuprogeo is designed for the use of refrigerants and gases for direct evaporation in heat pumps. The advantage of this application is that high performance can be achieved with suitable heat pumps.

Your benefits

• clean and dry inner surface
• supplier traceability through signature
• tube protected by an outside surface coating
• standard tube quality according to EN 12735-1
• requirements comply with the Pressure Equipment Directive 2014/68/EU

Fields of application

• geothermal energy
• refrigeration equipment and heat exchangers
• geothermal heat pumps with direct evaporation

FRIGOTEC® tubes are seamless drawn copper tubes for use in refrigeration and air conditioning. The inner surface of the tubes has a special degree of cleanliness. The tube ends are already sealed at the factory.

FRIGOTEC® tubes are subject to a constricted carbon residue on the inner tube surface in accordance with EN 12735-1. Due to the range of dimensions from 6 × 1 mm to 108 × 2.5 mm, systems of any size can be realized. The pipes are ideally connected with >B< solder fittings. In addition, the FRIGOTEC tubes in R250 and R290 condition in the dimensions 8 × 1 mm to 64 × 1 mm comply with EN 13348 for medical gases.

The applicable standards and guidelines must be observed during planning, processing and operation.

FRIGOTEC Plus tubes are jacketed copper tubes with high internal cleanliness and closed ends for use in refrigeration and air conditioning. Factory applied PE insulation is 9 mm and provides continuous meter marking.
Material CU-DHP, condition R220.

FRIGOTEC Plus copper tubes are subject to a constricted carbon residue on the inner surface of the tube in accordance with EN 12735-1. The range of dimensions includes 6 × 1 mm to 22 × 1 mm and 1/4" to 7/8". The pipes are ideally connected with >B< solder fittings. The applicable standards and guidelines must be observed during planning, processing and operation. The sheathing complies with fire class E of EN 13501-1 and has a vapor diffusion >7000 μ.

Standards: EN 12735-1 | ASTM B280

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Refrigeration and air conditioning Piping systems