STC-2-P-C/A flat panel collectors

Feature
  Pure red copper inner tube with excellent compressive property(working pressure is 0.6Mpa),very safe and clean.Applicable for any environment and installing condition.
  The selective absorption coating of aluminum strip is good in that it uses anodizing and electric pigmentation. The absorptivity is 0.96+/-0.03 ; the emissivity is 0.18+/-0.05.
 The thermal stability of the coating is strong.It does no harm if exposing in the emperature as high as 185degree centigrade.Strong weatherability of coating and long life owns to the unattackable anodized aluminum strip whose life is over 25 years .
 Aluminum strip costs less than copper one.
 

The absorptivity is 0.96+/-0.03 ; the emissivity is 0.18+/-0.05 .
Life length is over 25 years