K65

K65 brazed fittings, developed in conjunction with Wieland, enable the simple, safe and economical installation of high pressure refrigeration applications up to 130 bar. The range is particularly suited for use with CO2 (R-744) in transcritical applications as the K65 alloy provides a mechanical strength high enough to withstand the pressure ratings required.
View Range
Applications
Why choose us
Features
Downloads

Applications

ACR
Suitable for:
  • High pressure air-conditioning
  • High pressure refrigeration

Why choose us

High strength copper alloy fitting

Easy to identify

Light-weight so product is easier to handle

Corrosion resistant

Fully approved and certified

25 Year product guarantee

Standards

VdTÜV material sheet 567, seamless drawn tubes in CuFe2P (CW107C) Wieland K65
EN 12449 seamless, round tubes for general purposes
EN 12735-1 copper and copper alloys, seamless, round copper tubes for air-conditioning and refrigeration
Wieland R-H-1600 tubes for high pressure systems 130 bar (K65)
ISO 5149-2, EN378-2 5.3.2.2.3 strength pressure test, compliant
EN 14276-2 – 8.9.4.1.2 type burst proof test, compliant
Tubes UL 207 component file number SA44215
Fittings UL 207 component file number SA44293

Sizes

From 3/8″ to 2 1/8″

Guarantee

When professionally installed, used and maintained in accordance with K65 installation instructions, Conex Universal Ltd. guarantees that K65 fittings supplied by Conex Universal Ltd. will be free of material defects resulting from errors in manufacture, for twenty-five (25) years from the date of first purchase by an end user.  For full terms and conditions please refer to the Product Guarantee Statement.

Downloads

  • K65 Brazing Recommendations
    (
    pdf
    0.735 MB
    )
  • K65 Installation Instructions
    (
    pdf
    0.192 MB
    )
  • K65 Technical Brochure
    (
    pdf
    0.729 MB
    )
  • K65 Sales Flyer
    (
    pdf
    0.319 MB
    )

    • Client success stories

    View All
    K65
    Conex Bänninger and Wieland’s K65 system specified at Atlético de Madrid’s stadium Wanda Metropolitano

    Find the right system for the job

    Need help finding the right system for the job?
    Product selector