Working Principle

low pressure vacuum tube  solar water heater adopt simple thermal circulation, cold water heated by collector, and then hot water go up to tank, cold water in tank flow into collector, cold and hot water form a natural circulation in solar water heater, the whole tank water will be hot water gradually.

Specialty: 

• 1.Economical type for most of area,common people can afford it
• 2.Simple product structure:   solar collector and water tank connected together directly, no need of pipe to connect, and no pump to push fluid
• 3.Mature technology and stable operation
• 4.Higher efficiency on photo thermal conversion.
• 5.Accessory is popular and easy maintenance

Technical specification:

• 1. Inner Tank: o.41mm SUS304-2B food grade stainless steel (optional material: SUS316L).
• 2. Outer Tank: o.31mm color steel (SUS304-2B).
• 3.  Bracket: galvanized steel plate with plastic spraying, thickness 1.2mm/1.5mm, angle 20°/30°/40°/45°.
• 4.  Insulation: 55mm polyurethane layer.
• 5.  Vacuum tube material: borosilicate glass 3.3; AL-SS-CU absorb coating
• 6.  Seal material: Stabilized High Temperature Silicon
• 7.  It resists 25mm hail.
• 8.  Heat preservation: 72 hours

low pressure vacuum tube solar water heaters 

 low pressure vacuum tube solar water heaters

1.  OEM service

2. Warranty: 5 years

3. Considerable  after sale service

200 Liters compact non-pressurized vacuum tube solar hot water heater

Certifications:

       Jiang Su DR. Xia Solar Energy INC. was established in 1988 and is located in Chan Zhou city. Our company covers an area of 45000 square meters and has over 100 employees.

       We are specialized in Solar water heater and have an annual production capacity of 100,000sets. Our company has rich experience in the solar industry. Besides, because of large overseas markets, most of our products have got Solar Key mark, SRCC, CE certificates.

      Our company has laser welding, automatic punching and vacuum sputtering equipment to strictly control the product quality. We warmly welcome customers from at home and abroad to cooperate with us for common success.   200 Liters compact non-pressurized vacuum tube solar hot water heater