Vacuum 28 Tube Solar Collector China Top Supplier

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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 

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 28 Tube Solar Collector China Top Supplier

Vacuum 28 Tube Solar Collector China Top Supplier

Vacuum 28 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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Remaining: 4000 characters

- Self introduction

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Q:According to the installation of a solar water heater to the large area
Rainy weather heating and hot water utilization rate is fast, but also greatly reduced after-sales service, both time and energy saving. This type of solar energy than ordinary single warehouse in the absence of the sun heating time is only 20-30 minutes, and a single warehouse needs 2-3 hours!
Q:Can you install a solar water heater on the first floor
Solar (solar energy), refers to the sun's heat radiation energy (see heat energy in three ways: radiation), the main performance is often said that the sun's rays
Q:Solar water heater can be used for a few years!That is, long life, high temperature
Causes of solar water heater short-livedA vacuum tube vacuum tube is the core component of solar water heater, solar water heater is the "heart". It directly determines the quality of the whole water heater performance. Vacuum tubes performance by coating technology and cleaning, coating, vacuum, sealing process of the impact. However, some ultra low-cost solar water heater using the vacuum tube has the following defects: low vacuum, only high-quality products 1/100; a large number of impurities and residual water vapor pipe, a high temperatures encountered into gas, vacuum reduction; low vacuum film stability of two or three years, intimal layer aging, fall off, resulting in the thermal performance decays rapidly, unable to absorb enough heat.
Q:How to choose to buy solar water heater?
6 in the purchase should also take into account the number of resident population in order to determine the size of the purchase of domestic solar water heaters. Generally, the standard of 40 liters per person is appropriate. In addition, many products of the nominal water capacity was calculated using each vacuum tube and the water tank capacity capacity added, but in fact, the water outlet of the water heater and the vacuum pipe of the water is not put out of use, users can really use the water just into the water between the water outlet and an overflow port so, at the time of purchase should ask the seller, their nominal capacity refers to the total water capacity or actual capacity of water use, the difference between how much.
Q:Solar water heater, winter can be used in rural cottage
The solar water heater, in rural cottage in winter, generally the use of solar water heaters will be placed in rural areas on the roof, you can contact the sun very good light, suitable for people to use the temperature reached.
Q:What are the components of the solar water heater and what role?
The connecting pipe: the hot water from the collector is transported to the heat preservation water tank, the cold water from the water tank insulation transported to the collector loop channel, make the whole system to form a closed circulation pipeline connection. Reasonable design, the right of the solar system is able to achieve the best working conditions is very important. Hot water pipes must be insulated. The pipe must be of high quality, which has more than 20 years of life.Per square meter flat solar heat collector average normal sunshine day, can produce the equivalent of 2.5 kwh of heat, annual savings of 200 kilograms of standard coal, can reduce emissions of more than and 700 kg CO2. Extensive use of solar water heaters, including domestic hot water, heating, air conditioning, pollution and greatly improve the earth will save money at the same time.
Q:Solar water heaters have odor, for what reason, how to do?
The solar water heater you should be integrated, that is to say the solar water heater in your water is repeatedly heated, so easy to produce scale, and if the water heater tank is not good, the scale will bear very thick, bacteria or other things.After the proposal to buy solar water heaters to buy split, which is the future development trend of solar water heaters, then hot water will not be repeated heating, more health. For example, A.O. Smith is very good, split type, and the king of the liner liner is not easy to scale
Q:How to use solar energy water heater with air heater
The two sets of systems in the hot water on the addition of a valve, which with which to open another
Q:How wide is the solar water heater?
There is also a balcony wall mounted solar energy, with a hot plate to replace the vacuum tube, the width is generally less than one meter, the length of two meters to nearly four meters.
Q:Solar water heater water is not urgent
Do you still do not worry about the floor or a bath basin is not clear that the basin

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