Electro Grade-Copper-Copper

Absorber Coating

Selectively Coated Continuous Electroplating of Black Chrome over nickel substrate on Copper sheet of 0.2mm thickness with Heat treatment to withstand temperature up to 300°c

Optical Properties

Absorbptivity  = 0.92 + 0.02 , Emissivity = 0.12 + 0.02

Riser Tubes

Copper tube of Diameter 12.5 mm + 0.5 mm , Thickness 0.56 mm

Header Tubes

Copper tube of Diameter 25 mm + 0.5 mm , Thickness 0.71 mm

Bonding between Riser & Header

Brazing

Bonding between Fin & Tube

Ultrasonic / Tig

Back Insulation

Resin bonded Rock wool of 48 Kg/m³ , Thickness 50mm

Side Insulation

Polyurethane puf, Thickness 25mm

Collector Box

100mm X 25mm Aluminum channel, Thickness 1.63mm

Collector Bottom Sheet

Aluminum, Thickness 0.71mm

Collector Stand

Corrosion resistant Coated MS

Glazing

Toughened glass, Thickness 4mm with low Iron Transmitivity > 85% @ near normal incidence

Retainer Angle for Glass

Aluminum Angle, size 25mm X 25mm X 1.6mm

Beading for Glass

EPDM Rubber

Absorber Area

2 sq. meter + 0.1 sq. meter / Collector

Wt. of the Collector (dry)

60 Kg

Collector Tilt

24.5° to HORIZON (non-variable) for places Located between 12° North and 15° South

Heat Transfer Medium

Water

Collector Area

2.132 .sq meter

Number of fins

9

Maximum Working Pressure

6 Kg / Sq Cm

Dimensions

Length - 2050 mm , Breadth - 1040 mm , Height - 100 mm

Stainless Steel, AISI 304

Insulation

Resin Bonded Rockwool/Mineralwool , Density 48 Kg/m3 Thickness 100mm (Minimum)

Outer Cladding

Aluminum Sheet, Thickness 0.71mm

Inter Connecting Pipe

GI class 'B' ISI Make

Back-up Heater (Electrical)

2 KW up to 300 LPD (Liters Per Day) capacity For higher capacity, heaters will be provided accordingly