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The model Giga NS Selective, closed circuit complete thermosiphonic system, is available in various sizes and supports (inclined and flat roof). The tank features a big round flange for easy service and its cover is white with high quality plastic cover. The collector is high Selective which is a flat plate single copper sheet absorber, with laser welded copper tubes. The range of Giga NS Selective model extends up to 200 liters combined with 4,4 m2 of collectors.
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The Calpak Vacuum 160/14 VTN and 200/16 VTN are our latest innovations. They are closed circuit thermosiphonic systems with a vacuum tube collector. The vacuum tubes are equipped in the interior with U shaped copper tubes and aluminum fins that maximize the absorbance of heat.
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The model Mark 3, closed circuit complete thermosiphonic system, is available in various sizes and supports (inclined and flat roof). The tank features a big round flange for easy service and its cover is aluminum granulated with high quality plastic cover. The collector is a Sandwich type. The absorber is made of 2 sheets of thick steel (8 mm) with integrated canals, painted in special solar black colour. The range of Mark 3 model extends from the model 125/1.5 with a tank of 125 liters and one collector of 1.5 m2 and ends up to 300 liters combined with 4,4 or 5,1 m2 of collectors.
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Natural circulation systems function by the principle that the convection fluid, as it heats up, will naturally go upwards, will exchage heat and then go down.
These systems have: An excellent efficiency, Low maintenance, No electronic or electric appliances are necessary to function.
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Inner tank: SUS304-2B (δ=0.4), natural color
Shell of tank: Aluminum-zinc coated steel plate(δ=0.4) Color: silver gray
End cap: Galvanized steel plate with plastic spraying(δ=0.4), Color: bottle green
Bracket: Reinforced galvanized steel plate with plastic spraying(δ=1.2), Color: bottle green
Vacuum tube type: φ58×1800, T super tube
Fivestar FS-III Colorful Screen Intelligent Controller: Optional
Models available: 18 tubes, 22 tubes, 26 tubes, 30 tubes, 36 tubes
Feature:
- Vacuum tube: Hard borosilicate glass tube (diameter 58 mm; length 1800 mm), 30 mm hailstone resistant.
- Operating pressure: no pressure (open type)
- Welded by high efficiency rolling welding machine with imported high quality stainless steel sheet (SUS304)
- 55mm high dense polyurethane integral foam ensures the good heat-preservation
- Made of imported high quality stainless steel that has good corrosive resistance and application of temperature
- Reflection sheet is assembled from many stainless steel sheets, easy to install with the advantages of ventilation and preventing snow from collecting
- Assembles to bar with screws for easy shipping and installation
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Water tank
External diameter of water tank: Φ525mm
Length of water tank: 1400mm
Shell material: Colorful galvanized steel (08F)
Length of inner tank:1240mm
External diameter of inner tank: Φ400mm
Material of inner tank: stainless steel or special steel with glass-lined coating
Thermal insulation: 62mm thick polyurethane
Joint of water tank: G1’’ outer thread
Circulation: G3/4”” outer thread
Working pressure: 0.6MPa
Solar collector
Dimension of solar collector L*W: 2000mm*1000mm
Absorber area: 1.73m2
Absorber (optional): Black chromed or magnetic blue sputtering coating fin
Header: Φ22mm*0.6mm, 2pcs, Copper TP2
Riser: Φ10mm*0.5mm, 8pcs, Copper TP2
Insulation: Back: 50mm fiber glass insulation (black backing)
Cover (optional): Pattern tempered glass or low-iron tempered glass
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