1. Structure ofÿÿFlat Plate for Solar Collector Model SDT3.0-A/C SeriesÿThis flat plate comprises strong low Iron tempered textured glass and absorber plate of different thickness and frame style for option, and risersÿand headers comform to international standard; for the back plate,it is constructed with galvanized steel and theÿ frame is extruded with anodized aluminum alloy. This product is smart in appearance and get good quality.1.glazing,ÿÿÿÿ ÿ2. absorber plate,ÿÿÿ ÿ 3. risers,ÿÿÿÿÿÿ 4. insulation,ÿÿÿÿÿÿÿÿ 5. casingÿ2. Main Features of Flat Plate for Solar Collector Model SDT3.0-A/C Serieslow iron tempered textured glass can maximize the solar radiation available and minimize energy emittanceÿrisers designed for either water or propylene glycolgood corrosion resistance and light handling capbilitiesÿ3. Flat Plate for Solar Collector Model SDT3.0-A/C SeriesÿImagesÿ4. Flat Plate for Solar Collector Model SDT3.0-A/C Series Specificationsÿÿ5. FAQÿQ1.: What is the respective diameter of the risers and heads?ÿÿÿÿÿÿÿÿ Re: For the risers the diameter is 22mm &25mm and for the heads 10mm.ÿQ2.: What is the insulation of this product?ÿÿÿÿÿÿÿ Re:ÿ Fiber glass is used to insulate the base of the collector to minimize heat loss. It has 30mm to 50mm thickness for option and has a conductivity ?0.048W/(m.K).