evacuated-tube-collector-etc
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The adaptability of SUN ZONE to the changing technology, customer preference have all paved way for introducing ETC type of Solar Water Heating Systems. As an outcome of pains taking technology adopted by SUN ZONE SOLAR SYSTEMS, the EVACUATED TUBES collector consists of an inner and outer tube as ...Read more

Sun Zone Premier

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The adaptability of SUN ZONE to the changing technology, customer preference have all paved way for introducing ETC type of Solar Water Heating Systems.

As an outcome of pains taking technology adopted by SUN ZONE SOLAR SYSTEMS, the EVACUATED TUBES collector consists of an inner and outer tube assembly made of extremely strong impact transparent borosilicate twin glass tubes with vacuum in between the tubes, the outer tubes is transparent allowing light rays to pass through with minimal reflection. The inner tube is coated with special selective coating featuring excellent solar radiation absorption and minimal reflection property. The trapped heat inside the tube is not lost as a result of vacuum.

The inner tank is made of 304 L Grade stainless steel with special inner coating and finishing technology FIRST OF ITS KIND IN INDIA.

Technical Specification

Evacuated Tube Collector

Tube Length (nominal) 500mm
Outer tube diameter 47mm
Glass thickness 1.6mm
Thermal expansion 3.3X10-6C0
Material Borosilicate Glass
Absorptive coating Graded Al-N / CU
Absorptance >92% (AM1.5)
Emittance <8% (800)
Vacuum Pressure <5X10-3pa
Stagnation Temperature >2000
Heat loss <0.8W(m20C)
Maximum strength 0.8MPa

Storage Tank

Storage tank (inside) Stainless steel 304 Grade
Insulation PUF
Tank outer cladding Stainless steel SS430
Storage tank stand Mild steel with Powder coating
Electrical Back up 2KW Thermostat
Sacrificial anode rod To avoid Galvanic corrosion
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