Head of the company Christian Müller and Sales Manager Michael Averbeck are international industry experts with a down-to-earth background: as craftsmen and trained plumbers, they can draw on deep-rooted knowledge of materials, processing methods and practical expertise in the use of plastics in a wide range of applications. However, thanks to their studies at Osnabrück University of Applied Sciences and Münster University of Applied Sciences, the engineers are also familiar with the scientific field of supply and materials technology and also have extensive knowledge from over 25 years of industrial experience – both as freelancers and in management positions at system suppliers and component manufacturers. Both have accompanied the development of piping systems and know the normative and technical background of various piping systems in detail. In addition, Christian Müller’s expertise is in demand and recognised as part of committee work in standardisation at DIN or in the USA at the Plastic Pipe Institute (PPI). Our products are the result of a long journey full of learning and innovation – today we know how our products combine the optimum solution with the highest quality. We can rely on a large network and strong partners. We prioritise the wishes of our customers and the challenges in the markets. That’s why we constantly keep an eye on the latest product developments so that we can offer the latest solutions.
UFLEX ACR SYSTEM – Refrigerant Piping System for Modern Air-Conditioning Systems.
Safety. Reliability. Durability.
The UFLEX ACR system with pipe lengths of up to 100 metres – and mechanical connections optimised for practical use – has been developed to redefine the installation of refrigeration pipes. The result is shorter installation times thanks to simplified installation with absolute safety. The use of the UFLEX ACR system represents a major saving in installation time and costs. All optimisations have always been tested in consultation with institutes. Over 60,000 installations worldwide confirm this quality standard.
The UFLEX ACR-system
The UFLEX ACR system with up to 100 metre rings and secure compression screw connections is designed to prevent leaks and optimise installation. The thermal conductivity of the pipes is just one thousandth of that of a copper pipe, making it a more efficient system with less insulation. Its use represents a major saving in installation time and costs.
UFLEX ACR pipe is designed and manufactured in Germany to withstand the temperature and pressure requirements of air conditioning systems.
We offer an additional 5-year producer guarantee against material and manufacturing defects for applications up to 45 bar and 95ºC.
UFLEX ACR is certified according to ASTM F3346-19 and independently tested by IMA Applus Dresden.
- Applications or split air conditioning systems with a capacity of up to 17.6 kW.
- First refrigerant pipe system tested in the system
- Reliable thanks to optimised pipe design
- Compression connections instead of brazing or flanging, which avoids possible leaks, or fire hazard.
- No kinking thanks to maximum flexibility
- No risk of theft
- UFLEX ACR is certified in accordance with ASTM F3346-19 and ICC- ES LC 1039-2015
- Conformity with the IMA Dresden Applus
Standards for PERT type II / AL / PERT type II pipe and its connections
Use with the refrigerants R22, R134a, R32, R404a, R407c, R410a, and R507 and R290 are permitted.
UFLEX ACR is very reliable as it does not need to be brazed or flared. This safely prevents possible leaks. In addition, the risk of theft is negligible compared to copper. Thanks to its high resistance to UV rays and corrosion, the system has a service life of 30 years
The UFLEX ACR system from Cube Energy GmbH has been tested in the system for the first time and reflects the latest generation of coolant pipes.
Together with IMA Dresden, the continuous quality control of the UFLEX ACR system is externally tested. Thus, a system-related conformity has been developed, which provides for mandatory annual monitoring of all system-relevant components. The pipes are manufactured in Germany.
The UFLEX ACR-pipe
The UFLEX ACR pipe is characterised by its high flexibility and low weight, which enables quick and clean installations with less effort. Its minimal thermal expansion, absolute oxygen diffusion tightness, corrosion resistance and very high UV resistance should also be emphasised. In addition, the pipe has very low heat dissipation and vibration transmission, which minimises noise and fatigue fractures. This makes UFLEX ACR one of the most efficient and reliable systems. It is a very sustainable system, as valuable resources are saved in both the pipe material and the insulating material.
| Nominal Size | DIM / ASTM B-280 | Ø Exterior Average | Ø Interior Average | Wall Thickness | Burst pressure at 25°C | |
| Outside Diameter X Wallthickness | Nominal Size Outside Diameter | MIN. | MIN. | MIN. | ||
| mm | INCHES | mm | mm | mm | bar | PSI |
| 12 x 2,50 | 1/4ʺ | 12 | 7.0 | 2.5 | 125 | 1813 |
| 14 x 2,50 | 3/8ʺ | 14 | 9.0 | 2.5 | 115 | 1668 |
| 16 x 2,50 | 1/2ʺ | 16 | 11.0 | 2.5 | 105 | 1523 |
| 18 x 2,75 | 5/8ʺ | 18 | 12.5 | 2.75 | 98 | 1421 |
| 20 x 2,75 | 3/4ʺ | 20 | 14.5 | 2.75 | 92 | 1334 |
| 25 x 3,25 | 7/8ʺ | 25 | 18.5 | 3.25 | 85 | 1233 |
Operating pressure:
DIM 12-16 40 bar, short term 45 bar
DIM 18 38 bar, short term 45 bar
DIM 20+25 32 bar, short term 45 bar
Operating temperature:
-40°C to 75°C, short term 85°C
Oxygen Diffusion:
0.000
Bending Radius:
3xD (D=outer diameter) with pipe bender
Coefficient of thermal expansion:
0.025 mm/(m*K)
Thermal conductivity:
0.42 W/(m*K)
Corrosion resistance:
unobjectionable
Installation:
In walls, floors and ceilings
Producer-Guarantee:
5 years
The UFLEX ACR-pipe
- High flexibility without kinking the pipes
- Low weight
- Corrosion resistant
- Minimal thermal expansion
- Not susceptible to stress fractures
- Compensates for noise transmission
- UV resistant
- Available insulated and uninsulated
- Up to 100m delivery length
The UFLEX ACR-pipe
The UFLEX ACR pipe is characterised by its high flexibility and low weight, which enables quick and clean installations with less effort. Its minimal thermal expansion, absolute oxygen diffusion tightness, corrosion resistance and very high UV resistance should also be emphasised. In addition, the pipe has very low heat dissipation and vibration transmission, which minimises noise and fatigue fractures. This makes UFLEX ACR one of the most efficient and reliable systems. It is a very sustainable system, as valuable resources are saved in both the pipe material and the insulating material.
| Nominal Size | DIM / ASTM B-280 | Ø Exterior Average | Ø Interior Average | Wall Thickness | Burst pressure at 25°C | |
| Outside Diameter X Wallthickness | Nominal Size Outside Diameter | MIN. | MIN. | MIN. | ||
| mm | INCHES | mm | mm | mm | bar | PSI |
| 12 x 2,50 | 1/4ʺ | 12 | 7.0 | 2.5 | 125 | 1813 |
| 14 x 2,50 | 3/8ʺ | 14 | 9.0 | 2.5 | 115 | 1668 |
| 16 x 2,50 | 1/2ʺ | 16 | 11.0 | 2.5 | 105 | 1523 |
| 18 x 2,75 | 5/8ʺ | 18 | 12.5 | 2.75 | 98 | 1421 |
| 20 x 2,75 | 3/4ʺ | 20 | 14.5 | 2.75 | 92 | 1334 |
| 25 x 3,25 | 7/8ʺ | 25 | 18.5 | 3.25 | 85 | 1233 |
Operating pressure:
DIM 12-16 40 bar, short term 45 bar
DIM 18 38 bar, short term 45 bar
DIM 20+25 32 bar, short term 45 bar
Operating temperature:
-40°C to 75°C, short term 85°C
Oxygen Diffusion:
0.000
Bending Radius:
3xD (D=outer diameter) with pipe bender
Coefficient of thermal expansion:
0.025 mm/(m*K)
Thermal conductivity:
0.42 W/(m*K)
Corrosion resistance:
unobjectionable
Installation:
In walls, floors and ceilings
Producer-Guarantee:
5 years
UFLEX fittings
Manufactured using the latest innovative technology and to the highest German quality standards. Our pipe adapters and connectors are designed to be safe and easy to install. The production facility is permanently monitored by independent institutes. We recommend using a copper sealing ring and Loctite to secure the union nuts on the adapter fittings.
Torque
RECOMMENDED TORQUE FOR FLARE CONNECTOR
| UFLEX ACR Pipe Size | 1/4ʺ | 3/8ʺ | 1/2ʺ | 5/8ʺ | 3/4ʺ | 7/8ʺ |
| 45° Flare Thread Size | 7/16ʺ 20UNF | 5/8ʺ 18UNF | 3/4ʺ 16UNF | 7/8ʺ 14UNF | 1 1/16ʺ 14UNF | 1 1/4ʺ 12UNF |
| Torque Min Nm | 12.2 | 27 | 40.5 | 60.8 | 107 | 147 |
| Torque Max Nm | 13.5 | 33.7 | 47.7 | 74.2 | 119 | 154 |
RECOMMENDED TORQUE FOR THE COMPRESSION NUT THAT FASTENS THE PIPE
| UFLEX Tube Size | 1/4ʺ 12×2.5 | 3/8ʺ 14×2.5 | 1/2ʺ 16×2.5 | 5/8ʺ 18×2,75 | 3/4ʺ 20×2,75 | 7/8ʺ 25×3,25 |
| Torque Nm | 11 | 24 | 28 | 36 | 42 | 54 |
UFLEX fittings
- Continuous quality control with external monitoring
- Optimised design for gentle use of the multilayer composite pipes
- Easy to install
- No pressing tools required
- Compression fittings instead of brazing or flare, avoiding possible leaks
UFLEX fittings
Manufactured using the latest innovative technology and to the highest German quality standards. Our pipe adapters and connectors are designed to be safe and easy to install. The production facility is permanently monitored by independent institutes. We recommend using a copper sealing ring and Loctite to secure the union nuts on the adapter fittings.
Torque
RECOMMENDED TORQUE FOR FLARE CONNECTOR
| UFLEX ACR Pipe Size | 1/4ʺ | 3/8ʺ | 1/2ʺ | 5/8ʺ | 3/4ʺ | 7/8ʺ |
| 45° Flare Thread Size | 7/16ʺ 20UNF | 5/8ʺ 18UNF | 3/4ʺ 16UNF | 7/8ʺ 14UNF | 1 1/16ʺ 14UNF | 1 1/4ʺ 12UNF |
| Torque Min Nm | 12.2 | 27 | 40.5 | 60.8 | 107 | 147 |
| Torque Max Nm | 13.5 | 33.7 | 47.7 | 74.2 | 119 | 154 |
RECOMMENDED TORQUE FOR THE COMPRESSION NUT THAT FASTENS THE PIPE
| UFLEX Tube Size | 1/4ʺ 12×2.5 | 3/8ʺ 14×2.5 | 1/2ʺ 16×2.5 | 5/8ʺ 18×2,75 | 3/4ʺ 20×2,75 | 7/8ʺ 25×3,25 |
| Torque Nm | 11 | 24 | 28 | 36 | 42 | 54 |
UFLEX tools
The UFLEX ACR system tools are specially adapted to the UFLEX pipe system to ensure correct and safe installation. Due to the pipe construction, the wall thicknesses are greater than other systems, which means that only UFLEX ACR system tools may be used. The UFLEX ACR pipe should be bent to a minimum bending radius of 3 times the pipe diameter (r ≥ 3 x Da)*.
*Safe and fast bending is possible by using the UFLEX pipe bending springs. If the pipe does become deformed, the affected section must be removed and can be connected using a UFLEX ACR pipe coupling.
| Nominal Size | DIM / ASTM B-280 | Ø Exterieur (Da) | Bending Radius (r) |
| mm | INCHES | mm | mm |
| 12 x 2,50 | 1/4ʺ | 12 | 36 |
| 14 x 2,50 | 3/8ʺ | 14 | 42 |
| 16 x 2,50 | 1/2ʺ | 16 | 48 |
| 18 x 2,75 | 5/8ʺ | 18 | 54 |
| 20 x 2,75 | 3/4ʺ | 20 | 60 |
| 25 x 3,25 | 7/8ʺ | 25 | 75 |
UFLEX tools
- Optimised tool especially for our pipe system
- Chamfer that prevent chips from penetrating the pipe
- Modified cutters
- A well-organised tool case
- The use of the tool is necessary for the warranty case
- Bending springs that cover several DIMs
UFLEX tools
The UFLEX ACR system tools are specially adapted to the UFLEX pipe system to ensure correct and safe installation. Due to the pipe construction, the wall thicknesses are greater than other systems, which means that only UFLEX ACR system tools may be used. The UFLEX ACR pipe should be bent to a minimum bending radius of 3 times the pipe diameter (r ≥ 3 x Da)*.
*Safe and fast bending is possible by using the UFLEX pipe bending springs. If the pipe does become deformed, the affected section must be removed and can be connected using a UFLEX ACR pipe coupling.
| Nominal Size | DIM / ASTM B-280 | Ø Exterieur (Da) | Bending Radius (r) |
| mm | INCHES | mm | mm |
| 12 x 2,50 | 1/4ʺ | 12 | 36 |
| 14 x 2,50 | 3/8ʺ | 14 | 42 |
| 16 x 2,50 | 1/2ʺ | 16 | 48 |
| 18 x 2,75 | 5/8ʺ | 18 | 54 |
| 20 x 2,75 | 3/4ʺ | 20 | 60 |
| 25 x 3,25 | 7/8ʺ | 25 | 75 |
COOPERATION WITH:
