As a result of extensive research
into the nature and behaviour of the bolted joint it is now technically
feasable to build such, which are
stronger than the members joined.
A VCF-joint can be made as strong
as the associated pipe itself.
Nowhere in a VCF-flange are there
tensile stresses as high as in the pipe.
In the bolts there are no concentrated
stresses from bending.
Bolts are being preloaded to above
80% of their minimum guaranteed yield strength.
Education, training and detailed
instructions may be provided for mechanics to become qualified
to bolt up VCF-joints.
comparison between VCF and a convensional joint is available for
download in swedish and english.
VERAX has gone into detail in a number
of issues in order to find the truth behind the boilted joint. The
results are available for download below: