catalogue “Hydraulic connection technology, Edition 2018 - Section 9”. 2 For selection of the tubes refer to VOSS catalogue “Hydraulic connection technology”, Edition 2018 - Section 9. 3 Tube wall thickness [...] certificate includes coupling types as specified in the VOSS catalogue “Hydraulic connection technology, Edition 2018 - Section 3 – 24° taper couplings (DKO)”. In addition, the following coupling types and accessories [...] steel) the pressure reductions factors specified in VOSS Fluid “Hydraulic connection technology, Edition 2018, Section 9” are to be observed. Job Id: 262.1-001688-5 Certificate No: TAP0000166 Form code: