Chaoge manufactures finned block heat exchangers
for numerous civiland industrial applicaƟ ons where
heat transfer is required between airand primary
fluid such aswater, refrigerant gas, no-freezing
soluƟ on, etc.
Chaoge heat exchangers are produced with copper or
copper-nicheltubes and aluminum or copper fins.
Fins are provided with collars; the contact between
the tubes and the collars is obtained by mechanical
expansion of the tubes. Mechanical expansion of the
tubes provides a Ɵght bond between the fins and the
tube ensuring a high heat transfer between the
primary fluid and the air. Fins have a gauge collar that
providesan exact spacing between themselves.
Chaoge unique feature, each heat exchanger is cleaned
and degreased internally and externally, through liquid
and gaseous solvent washing,eliminaƟ ng even the
smallest parƟ cles.
AŌ er the brazing process, a leakage test is performed
on all the heat exchangers. In addiƟ on to the tradiƟ onal
test carried out with pressurizedair, keeping the heat
exchanger underwater, chaoge has an advancedtesƟ ng
system, which is used where possible. This test, carried
out withhelium as tracing gas, allows a high precision
level and the possibility toidenƟ fy also very small
leakages.