Compact Non-pressurized Evacuated Tube Solar Water Heater

Features:

This type is a compact non-pressurized system. The design of this type uses the all-glass evacuated solar collector tubes as the heat absorb element. There is a natural circulation system that works on a light absorption principle. Depending on the different density between hot water and cold water, a water flowing cycle is created in the tubes. Hot water flows automatically upwards while the cold water flows down. The water in the storage tank will be heated from this natural circulation.

Description:

Water storage tank

Inner tank: SUS304-2B food grade stainless steel, seamless welding

Outer tank: color coated steel sheet, prevent from corrosion

Insulation: polyurethane, 55-60mm thickness, temperature holding time up to 72 hours

Inlet and outlet hole: 1/2

Vacuum tube

Tube structure: all glass double deck co-axial structure

Glass material: high borosilicate glass 3.3

Tube size: 58*1800mm

Absorptive coating property: 3 targets magnetron sputtering plating Cu/SS-ALN (H)/SS-ALN (L)/ALN

Color of the coating: mulberry

Vacuum tightness: 5.0 x10-3Pa

Hail resistance: 25mm

Useful life: 15years

Bracket

Bracket: galvanized steel sheet, prevent from corrosion

Collector angel: 45°

Accessories

Stainless bolts & nuts, silicon rubber seal, dustproof rubber seal, spring holder

Packing

Export carton with foams

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Production process

Certificate