Vacuum 30 Tube Solar Collector China Top Supplier

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10 set
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10000 set/month

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Product Description:

Introduction of Non-Pressure Solar Water Heater:

Non-pressure Solar Heater is one of the most economical solar water heating device with pretty high efficiency at the same time. It consists of hot water storage tank, solar vacuum tubes with mouth plug in storage tank, and bracket supporting tank and tubes.When cold water in evacuated tubes is heated with solar irradiation, as the specific gravities of hot water and cold water are different, hotter water goes upward to storage tank and colder water goes downward to glass tubes. through this continuous circulation, the cold water in storage tank will be gradually heated till sunset.


Solar water heaters working principle
1. The solar collector absorbs solar energy and transmits it to the solar water heater tank through circulation 
2. When the temperature of the collector reaches the set value, the controller starts the circulation pump automatically
3. The circulation pump makes heat-conducting liquid circulate automatically
4. The heat-conducting liquid transfers heat to water by lower heat exchanger in the water tank. 
5. When the temperature difference between solar collector and heat pipe solar water heaters tank doesn't reach the set value, the circulation pump will be shut automatically 
6. In case the temperature of the water tank does not reach Tmax, Electric Heating Element will start to work automatically


Solar water heaters working station component:
1. Operating screen 
2. Manometer 
3. Pump speed adjust switches 
4. Temperature difference circulation pump 
5. Flow rate indicator 
6. Return circuit connector 
7. Safety valve 
8. Expansion vessel connector9. Return circuit connector 
10. Wall mounting 
11. Expansion vessel:8L 
12. Pressure resistance: 10 bar pressure for expansion vessel


Solar water heaters specification:


solar water heaters

Material of out manifold

0.55mm thickness color steel/ fluorine carbon steel

Material of inner tank

Food grade 2.0 mm thickness SUS304 stainless steel

Tank insulating layer

40mm 45kg/m³ high-density polyurethane foamed

Inlet and outlet hole

Male G1''

Max pressure

0.6 Mpa

Solar collector tube

3.3 Borosilicate glass with N/Al coating

Thickness of glass tube


Vacuum tube tightness

P≤0.005 Pa


as=0.93-0.96 (AM1.5)

Emission ratio

εh=0.04-0.06 (80C±5C)

Idle sunning property parameters


Average heat loss coefficient



2.0mm   thickness aluminum alloy

Tank   weight


Tank   size

560mm Dia   x 1810mm Height

Tank   capacity


Solar   collector

2pcs  58x1800x15tube   solar collector

Absorber   area

2.811 m²

Working   station

SP116 working   station

Heat   exchanger length

Upper:12m,        Underside:18m


Solar water heaters details show:

Vacuum 30 Tube Solar Collector China Top Supplier

Vacuum 30 Tube Solar Collector China Top Supplier

Vacuum 30 Tube Solar Collector China Top Supplier


Benefits of this kind of solar water heaters:

1. Prolong the life of your existing water heater

2.Costs less than an electric, gas or oil water heater

3.No maintenance required

4.Lasts longer than a traditional hot water heater

5.Reduce your water heating costs

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