heat pipe solar collectors

gtc-58-20tube solar system are widely used for home installtion and hot areaand some ecnomic developed country,gtc also makethis systemas united union project for 500units,it is under training by our dealer membership and more picture will be delivered after installation finished. our gtc solar sytem are get CE ISO ROHSCSAcertifcaiton and also give guarrantee for the whole sytem. capacity from 100L to 300L can be manufactured and more capacity can suppliered according to customers requestment. more items and projects see our web atw.gtc-solar.com and contact wiht us freely. 1) Model no.: GTC-58-alu 2) Adopts U pipe technology 3) No of tubes: 18, 20, 24, 30 4) Disassemble: no 5) Total length (m): 1.65/1.90/2.00/2.45 6) Total width (m): 1.9 7) Gross absorb area (m²): 3.14/3.50/3.80/4.66 8) Aperture area (m²): 2.52/2.96/3.36/4.20 9) Surface absorber (m²): 2.18/2.30/2.42/3.03 10) Reflector: non 11) Operation pressure (Bar): 8 12) Entry connector size: ½" male/copper tube 13) Material of manifold: anodized aluminum, 2mm 14) Material of U pipe and manifold head: TU1 copper 15) Insulation of manifold: polyurethane 16) Slot of thermic sensor: yes 17) Cold resistance: -30 18) Liquid capacity: 2.8/3.2/3.80/4.70 19) Total weight (kg): 39/42/47/65 20) Min. flow (L/m): 120 21) Typical flow (L/m): 150 22) Max. flow (L/m): 600 23) Stagnation temperature (°C): 300 24) EN 12975 (solar keymark) in course 25) Date: October 15 26) Efficiency (n0 in %, k1 in W/m²K, k2in W/m²/K²); n0=0.77, k1=1.47, k2= 0.0051 Tubes: 1) Hail resistance: ≤25 2) Diameter of tube (mm): 58 3) Glass quality: borosilicate, 3.3 (T=0.91) 4) Thickness (mm): 1.7 5) Vacuum degree (Pa): 3 x 10-3 6) Absorb rate: ≥0.94 7) Reflecting emission: <0.06 8) Material of coating: SS-C/CU solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector, solar collector