compact unpressurized flat plate solar water heate

Specifications of our compact flat plate solar system: 1. Solar Collector (Flat Plate Collector): collector core board: all copper black plated chrome series core board ,with absorption 95% emissivity 6%. frame: aluminum alloy and using 90mm glass coverlow iron pattern tempered glass ( its the best glass with highest heat absorptivity in the solar market.) heating preservation: 55mm high dense polyurethane whole foam. soleplate: 0.3mm galvanized sheet. copper connector: size- Φ25mm, Quantity- 6 pieces (200L) / 8 pieces (300L). outer size of unit flat plate collector: 2000*1000*80mm(L*W*H) collector area/ daylighting area of unit flat plate2.00 square meters /1.85square meters. working pressure: 700Kpa/7.0bar. Flow diameter: 25*0.6*1000 fin tube diameter: 10*0.45*1890. Features:. 1. Patterned temper glass or low iron temper glass (4mm thickness) offers the best capability of durability, strength. 2. Black chrome coating has high absorption rate and heating efficiency. 3. Since there are no adhesive or mechanical joints, nothing will deteriorate with usage and high temperature. 4. Special Anodized aluminum alloy frame to ensure handsome appearance and can accept high pressure without leakage. 2. compact unpressurized or pressurized Water Tank: Outside size: 420*420* / 470*470*. Capacity: 100L to 300L.. Out tank: colour steel board ,thickness 0.4MM±0.02MM. Inner tankInner tank:(unpressurized) SUS 304-2B stainless steel,thickness0.4mm. (pressurized) SUS 304-2B stainless steel,thickness1.2-1.5mm. Insulating layer: polyuretane,thickness ≥50MM