Vacuum Tube Solar Collector

Product Detail

vacuum tube solar collector

Feature:

1.Glass vacuum tube solar collector, high temperature,antifreeze,vacuum insulation.

2.Food-grade stainless-steel SUS304 2B inner tank,full-automatic welding technology,under

the protection of magnesium rod,it can increase of service life.

3.High pressure polyurethane foaming insulation,as the prefect density and

4.the thermal conductivity coefficient is small, so it can provide effective heat preservation

5.It can supply for several outlets at the same time, so it can fit for various requirement.

6.Non-pressure operation, can be used for natural circulation systems, large collector area, flexible installation.

7.Designed for commercial building design, suitable for schools, dormitories, hotels, bath centers and other public construction applications.

8Can be used for a large swimming pool heating, hot water and other large industrial water systems.

9The outer tank adopt color steel plate,and it has good double anti-corrosion function.

10.Investment only once,benifit forever. No harm,no pollution, saving and clean.

Working principle:

the vacuum tube absorbs solar radiation and transform into heat, heat the water in the vacuum tube. hot water flows upward due to the small density , cold water flows downward due to the bigger density, it forms a natural circulation in the vacuum tube. It repeatedly for heat exchange. thereby heat the water in the collector manifold. cold water entering the collector manifold, replacement of the hot water , ultimately, we get hot water.









Technical data:

Specification & model	SD-G2-15	SD-G2-18	SD-G2-20	SD-G2-24	SD-G2-25		SD-G2-30
Full system parameter
Tube QTY(pcs)	15	18	20	24	25	30
Tube spacing?)	75
Water tank
Net Volume of Storage Tank(L)	120	140	155	185	195	230
Gross Capacity(L)	155	185	205	245	255	305
Diamater of inner/outer Tank(?)	φ360/φ470
length of outer tank L1(?)	1310	1535	1685	1985	2060	2435
length of inner tank L(?)	1170	1395	1545	1845	1920	2295
material and thickness of inner tank(?)	SUS304 /t0.41
material of outer tank	color steel plate  t0.45
material of insulation	polyurethane
Size of electrical heater hole	11/4″
Cold water inlet hole	1/2″
Hot water outlet hole	1/2″
Assistant tank hole	1/2″
Air vent hole	1/2″
Drain vent hole	1/2″
Sensor hole	1/2″
Vacuum Tube
Diameter/Length(?)	φ58/1800
Material	High boron and silicon glass 3.3
Outside thickness(?)	1.8
Inside thickness(?)	1.6
Light transmission rate	≥0.90
Vacuum degree (Pa)	<10^-2
Coating absorption	&#8805;0.90
Coating emittance	&#8804;0.07
Average heat waste coefficient	&#8804;0.75W/(?&#183;&#8451;)
Frame	2 feets ( left-to-right )			3 feets ( left-middle-right )
Material	Galvanized steel t1.2			Galvanized steel t1.2
Angle	45&#176;
Tube support Specification/hole distance(?)	&#966;58/75
Accessories:
Tube sealing ring	Silicon rubber/&#966;58
Tube dusting rings	Silicon rubber/&#966;58
Tube holder	ABS/&#966;58