High efficiency vacuum tubes
June 1st 2008 Strengthening its award winning
Total System Solution Vaillant has
introduced the
auroTHERM exclusive VTK
570 vacuum tube
collector. A vacuum tube
collector with direct flow,
it provides high efficiency
performance and
generates the highest
annual solar gains per m2
of any of Vaillant's solar
collectors.
The auroTHERM
exclusive VTK 570 has six absorber
tubes, 1,500mm long, each with a
high selective aluminium nitrate
absorber coating.The coating
conducts heat via a spacer support
for the copper collector pipes,
enabling maximum heat to be
transferred into the
circulating solar fluid.The
collector pipes are brazed
at the manifold to ensure
maximum integrity of the
solar system, situated
inside the sealed
borosilicate glass vacuum
tube.
The new vacuum tubes
provide the collectors
with the levels of
insulation required for high-energy
gain, even in low, ambient
temperatures. More articles from Vaillant Ltd: | 
