vacuum tubes type csa solar collector

vacuum tubes csa solar collector gtc-58s-alu type used for hot water heater, room heating, floor heating ,swimming pool, solar

gtc-58s-alu vacuum tubes solar collector ,vacuum tubes solar collector can used for familiy use for hot water and also solar heating,like floor heating ,room heating, big mill or any vila, scool, or any other projector with solar collector usage. more intems see on our web at www gtc-solar com and let your know your comments. it has CSA, ISO, ROHS, CE certificaion

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

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