solar water heater compact non-pressure

1.Outer tank diameter: 420mm(47-1.5m)/ 460mm(58-1.8m)/ 480mm (58-2.0m)

2.Outer tank material: PVDF/colorful plate steel

3.Inner tank diameter: 310mm(47-1.5m)/ 360mm(58-1.8/2.0m)

4.Inner tank material & thickness: stainless steel SUS 304-2B & 0.4mm

5.Support stand: Galvanized steel/Alluminum alloy

6.Insulation: 55mm(47-1.5m)/ 50mm(58-1.8m)/ 60mm (58-2.0m) polyurethane foam 
7.Interval: 7cm (47-1.5m) /8 cm (58-1.8m) / 9.5 cm (58-2.0m)

8. Hailstone resistance: 25mm

Specification of tubes:

Structure:  All glass concentric dual tube structure

Glass material      : Borosilicate glass     

Outer tube diameter and thickness:   58±0.7mm/ 1.6mm     

Inner tube diameter and thickness:  47±0.7mm; 1.6mm

Length of tube:    1800(±5mm);     

Construction: Graded AL-N/AL selective absorbing coating

Heat-absorbing rate: >92%      

Emission of heat :< 8 %( 80)

Vacuum degree: P<5x10-3 Pa 

Solar radiance exposure: ≤2.8MJ/M2                                                             

Calories absorption: 9.1MJ/M2

Average heat loss: ≤8.6W/ (M3.K)

Pressure-endure ability: 1Mpa

1) This collector tube adopts magnetron sputtering coating technology

2)  Structure: All glass coaxial dual tubes

3)  Material: High borosilicate glass 3.3

4)  Coating: Cu/Ss-Aln/Aln high efficient selective absorptive coating and vacuum heat insulation could get higher heat and have high performance of absorptance and low reflection ratio and performing a strong heating ability.

5)   Vacuum pressure:5×10-4 Pa.

6)   Usage life: more than 15 years.

Our company is a manufacturer of  solar collectors and solar water heaters in China .We have ISO certification and some other related certifications.We always give our customers best price and good quality! We sincerely hope you will be my next business friends.