Solar Water Heater Vacuum Tube

Solar Vacuum Tube: 1) High heat effectiveness: higher than all-glass evacuated solar collector tube by 15% 2) Heat pipe conduction: successfully prevents the defects of tube breakage and low power output caused by water fouling and deposits or dust and sand 3) Prevents the tube from being easily broken caused by volume expansion when water freezes in the frigid season 4) Low thermal capacity makes the tube start up quickly 5) Energy output within only 2 minutes of sunshine 6) Insulation temperature can reach 250deg;C, average heat efficiency can still be more than 50%; even under -50 o C 7) High efficient selective absorptive coatings and vacuum heat insulation technology ensure the tube has higher heat output in cloudy weather and in moist areas, especially in winter 8) Solar collecting plate is sealed inside a high quality borosilicate glass tube with 5 x 10 -3 pa of vacuum, to stop corrosion; even in moist conditions Place of OriginChinaModel NumberSFVCPrice TermsFOB,CNF,CIFBrand NameSuninter & OEMPayment TermsT/T, L/CMinimum Order1 x 20' FCLSupply Ability30,000pcs/monthDelivery Lead Time15days Item No. Specification Diameter of solar tube Length of solar tube SFVC701770mm1.7M