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low price and high quality solar water heaters

How it worksThe design of this type uses the all-glass evacuated solar collector tubes as the heat absorb element. The high vacuum degree of the clearance between the outer and inner tube can reduce the heat emission which caused by convection and conduction to a very low level. All-glass evacuated tube transfers sun energy into heat energy by high absorption rate and low emittance rate of layer films. Depend on the different density between the hot water and the cold water, a cycle created in the tube which hot water ascending and cold water descending status. Keeping natural circulation like this, the water in the tank will be heated.

Material1. Inner tank: SUS304-2B stainless steel2. Outer tank: Color steel/Stainless steel3. Insulation: Polyurethane4. Frame: 1.5 mm Galvanized steel

Characteristics1. Beautiful appearance, steady structure, higher grads.2. Inner and outside water tank shell all are welded by argon arc.3. The tubes and frame are adjustable, power bearing is average, and can assure the vacuum tubes to use long time.

Non-pressurized Solar Water Heater TECHNICAL DATA
WATER STORAGE TANKS
Material of out tank	High quality Painted steel/ Stainless steel.
Material of inner tank	Food grade SUS304-2B stainless steel.
Tank insulating layer	Imported polyurethane can conserve the heat for maximum 72 hours
Inlet and outlet hole	Male G 1/2
Tank size	420,460,470,475,480,500mm or Customer demand
Welding:	Argon arc welding
VACUUM TUBES
Tube structure	All-glass double deck co-axial structure
Glass material	High borosilicate 3.3 glass
Outer tube dia. & thickness	Ø58±0.7mm; Glass thickness 1.6±0.15mm
Inner tube dia.& thickness	Ø47±0.7mm; Glass thickness 1.6±0.15mm
Tube size	58*1600mm
Absorptive coating property	Structure	AL/AL-ALN(H)/AL-ALN(L)/ALN or Cu/SS-ALN(H)/SS-ALN(L)/ALN
	Sediment method	Single target or Three targets - magnetron sputtering plating
	Specific absorption	0.90-0.93(AM1.5) / 0.93-0.96(AM1.5)
	Emission ratio	0.05-0.075(800C±50C) / 0.04-0.06(800C±50C)
Solar irradiation for obtaining a preset water temperature	Φ=58 H≤4.7MJ/m²	H=4.1-4.4MJ/m² / H=3.7-4.2MJ/m²
Vacuum tightness	3.0×10¯³ Pa
Idle sunning property parameters	220-260 m².C/KW / 260-300 m².C/KW
Average heat loss coefficient	ULT=0.6~0.7W/(M2.0C) / ULT=0.4~0.6W/(M2.0C)
Resistant Hail	≤25mm
Useful life	15 years
BRACKET
Bracket:	Stronger galvanized steel / Stainless steel/aluminium alloy
Bracket angle:	0,18,22,38,45 optional, pitched roof, flat roof optional.
Fastening pieces:	Made of zinc-coated stainless steel..

  

Model	Tube specification		Capacity
EB3-14	φ58mm*1600mm*14		130L
EB3-16	φ58mm*1600mm*16		148L
EB3-18	φ58mm*1600mm*18		165l
EB3-20	φ58mm*1600mm*20		185L
EB3-22	φ58mm*1600mm*22		205L
EB3-24	φ58mm*1600mm*24		220L
EB3-26	φ58mm*1600mm*26		240L
EB3-30	φ58mm*1600mm*30		275L

  VACUUM TUBE

Its production process

1.plate Cutting (Inner tank processing)

2.Punching(Inner tank processing)

3.Welding(welding device)

4.Pressing(Inner tank processing)

5.Edge(device)

6.Leakage(Inner tank processing)

7.Plate Cutting(Outer tank processing)

8.Punching(Outer tank processing)

9.Pressing(device)

10.Foaming

11.Packing