GTC-58S-ALU type is high pressure solar collector,it has good looking and high performance and easyly installation,more information see our web at www gtc-solar com

Specifications:
1) Model no.: GTC-58S-Alu
2) Quantity of tubes: 18, 24, 30
3) Disassemble: yes
4) Technology: heat pipe with twin glass vacuum tube
5) Total length (m): 1.65/2.00/2.45
6) Total width (m): 1.9
7) Gross absorb area (m²): 3.14/3.80/4.66
8) Aperture area (m²): 2.52/3.36/4.20
9) Surface absorber (m²): 2.18/2.42/3.03
10) Reflector: non
11) Operation pressure (Bar): 8
12) Entry connector size: ½" male/copper tube
13) Diameter of condenser (mm): 24
14) Material of manifold: anodized aluminum, 2mm
15) Material of heat pipe and manifold head: TU1 copper
16) Insulation of manifold: polyurethane
17) Slot of thermic sensor: yes
18) Cold resistance: -30
19) Liquid capacity: 1.4/1.8/2.2
20) Total weight empty (kg): 39/47/65
21) Min. flow (L/m): 120
22) Typical flow (L/m): 150
23) Max. flow (L/m): 600
24) Stagnation temperature (°C): 300
25) EN 12975 (solar keymark): in course
26) Date: October 15
27) 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