>B< MaxiPro

>B< MaxiPro

>B< MaxiPro

>B< MaxiPro

10 Years warranty on completion of FREE online training.

>B< MaxiPro is an innovative press fitting, which is quick and simple to use, providing a secure and permanent joint.  Compared with traditional techniques it significantly improves productivity through greatly reduced installation time and enhanced working flexibility.  >B< MaxiPro is revolutionising pipe jointing in air-conditioning and refrigeration applications.

Benefits summary

Reduced installation time and cost
Secure, permanent 3-point press
Flame-free connection - no hot works permit required, no risk of fire
No nitrogen purge
Flexible, non-disruptive, clean, repeatable, professional installation system
Extensively tested with a 10-year guarantee subject to training
Available in inch and metric sizes

Component materials

Refrigerant grade copper body (UNS C12200 min 99.9% pure)
Black HNBR O-ring


Heat pump (refrigerant side)

Compatible refrigerants

R-1234yf**, R-1234ze**, R-125, R-134a, R-290**, R-32**, R-404A, R-407A, R-407C, R-407F, R-407H, R-410A, R-417A, R-421A, R-422B, R-422D, R-427A, R-438A, R-444A**, R-447A**,
R-447B**, R-448A, R-449A, R-450A, R-452A, R-452B**, R-452C, R-454A**, R-454B**,
R-454C**, R-457A**, R-459A**, R-507A, R-513A, R-513B, R-600A**, R-718 and HYCOOL 20
** When using refrigerants classified A2L (lower flammability), A2 (flammable) and A3 (higher flammability) additional/specific standards, local rules and regulations, codes of practice and by-laws may be applicable
Note: >B< MaxiPro fittings are NOT suitable for R-717, R-723, R-764, R-744 refrigerants

Operating parameters

Maximum operating and abnormal pressure 48 bar

Temperature range

O-ring range -40°C to 140°C (-40°F to 284°F)
UL listing continuous operating temperature 121°C (250°F)

Standards and approvals

ASTM G85 salt spray (fog) test, compliant
EN 14276-2 - - type burst proof test, compliant
ISO 14903 - 7.4 - tightness test, compliant
ISO 14903 - 7.6 pressure temperature vibration tests (PTV), compliant
ISO 14903 - 7.8 freezing test, compliant
ISO 5149-2, EN 378-2 - refrigerating systems and heat pumps - safety and environmental requirements - Part 2: design, construction, testing, marking and documentation, compliant
ISO 5149-2, EN378-2 - strength pressure test, compliant  
UL listed, refrigerant fitting SA44668
UL listed, approved use for field and factory installations
UL 109 - 7 pull test, compliant
UL 109 - 8 vibration test, compliant
UL 1963 - 79 tests of gaskets and seals used in refrigerant systems, compliant


Inch 1/4" to 1 3/8”
Metric 6mm to 28mm


When professionally installed by a trained and certified >B< MaxiPro installer*, and used and maintained in accordance with the installation and maintenance instructions detailed in the >B< MaxiPro Technical Brochure, Conex Universal Ltd. guarantees that >B< MaxiPro as supplied by Conex Universal Ltd. will be free of material defects resulting from errors in manufacture, for ten (10) years from the date of first purchase by an end user.  For full terms and conditions please refer to the >B< MaxiPro Technical Brochure.

*For the installer to be suitably trained and certified for the purposes of this product guarantee the installer must have attended and passed a course on the >B< MaxiPro product held or expressly approved by Conex Universal Limited in relation to the use and installation of the >B< MaxiPro product.