100 LPD Radian Hitech Solar

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15,000.00 12,000.00

Superior Efficiency: 94% sun tracking from sunrise to sunset and no heat loss in cold weather with vacuum insulation
Reliable: No scaling or corrosion due to borosilicate glass
Easy Maintenance: Easy on-site cleaning of glass and tank system
Glass materials (ETC tubes) do not carry any warranty coverage
5 year replacement warranty on tanks and stands
Extended warranty available on request

Call Us Or Send Enquiry

The Radian line of non-pressurized ETC systems can be used in residential and commercial installations and work well to fulfill domestic water heating, hospitals, hotels and textile, chemical plants, brewing and dairy industry requirements. The Radian line of systems is designed to work under gravity water flow and comes with an insulated water storage tank and tank/ glass tube support structures.


Solar Hitech

Solar Hitech brings you the next generation of reliable, cost-effective and efficient solar water heating solutions. Established in 1999, our firm was the first to introduce Evacuated Tube Collector (ETC) technology in India. Today we continue to offer a wide range of solutions for Domestic, Commercial and Industrial clients. Call Us Or Send Enquiry

Technical Specifications

Technical Details Capacity Of Tanks 100LPD
Type Non pressurized
Inner Tank Material 1.2mm GI (Galvanized iron)
Insulation PUF 50mm
Outer Tank PPGI (Pre painted Galvanized iron) or Stainless steel
Tank Supports MS powder coated sheet
Tank Testing Factory pressure tested for normal systems is at 1 kg/cm²
Outer Tube Diameter 58±0.5mm
Inner Tube Diameter 47±0.5mm
Number Of Tubes 10 No’s
Type Of Tube Selective Coating Graded Al-Ni with copper under coating
Tube In Tank Seal Made of silicon rubber
Other Rubber Parts EPDM
Configuration Of Glass Tubes Two concentric Boro-silicate glass tube, absorptance>93%, emittance<6%(@85°c)
Area Required N-S = 2 m , E-W=1 m

Evacuated Tube Collector Specifications:

Our ETC systems consist of tubes with borosilicate glass conforming to the ISO 3585 specification. The tube specifications are as follows

  • Outer Tube Diameter : 58 mm  +/-   0.7  mm
  • Inner Tube  Diameter : 47 mm  +/-   0.7  mm
  • Tube length : 1800 mm +/- 5.0 mm
  • Absorber coating        :  Outer side of inner tube coated with three target Cu/SS/AlNi selective coating by magnetron sputtering vacuum slashing process
  • Absorptance > 93%, Emittance  < 6 % (@ 85° C)


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