Solar Industrial Water Heater Evacuated Tube Flat Plate Collector

Capacity 4 inches Usage/Application Solar Heater Brand Kondaas Installation Type Yes Country of Origin Made in India Absorber Material : Electro Grade-Copper-Copper Absorber Coating : Selectively coated continuous electroplating of Black, Chrome over Nicke substrate on copper sheet. with Heat treatment to withstand temperature. Up to 300 deg. C. Absorptivity = 0.96+ / -0.02, Emissivity = 0.12+/-0.02. Riser : Copper Tube - Dia 12.7mm x 0.54mm Thick Header : Copper Tube- Dia 25.4mm x 0.71mm Thick Bonding between Fin & Tube : Ultrasonic / Tig Back Insulation : Resin Bonded Rock wool of 48 Kg/mc, thickness 500mm. Side Insulation : Polyrethene / Rockwool of thickness 25mm. Collector Box : 2000mm x 1000mm x 100mm Collector Bottom Sheet : Aluminum / G.I of Thickness 0.71mm Glass : 4mm Thick Hardened & Toughened (Tempered Glass) / Textured Glass Insulation : Rock Wool - 50mm Thick Side Insulation : PUF - 25mm Thick all round Internal Lining : Aluminium foil - 30 micron Fin Coating : NALSUN - lack selective coating with >93% absorptivity Box Material : Aluminium extrusion Back Sheet : Aluminium / GI Sheet riveted firmly to box frame Number of Fins : 9 Connectors : Brass Flange / Threaded Connectors at all ends Flange : 4 Inches