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vacuum tube - SB-47/500/58/500

vacuum tube, 47/1,500/58/1,800/2,000mm Evacuated Tubes,, Absorbs Solar Energy, Transparent - more info check here: http://www.sourcingappliances.com/vacuum-tube-11133807/

Quick Brief

Type: Evacuated Tube Pressure: Pressurized Circulation Type: Indirect / Closed Loop (Activ... Heating System: Thermosyphon (Passive) Connection Type: Direct-Plug Housing Material: glass Certification: CE, SGS,ISO9001 Place of Origin: Jiangsu China (Mainland) Brand Name: Blueclean Sunstar Model Number: SB-47/500/58/500

Product Features:

vacuum tube

47/1,500/58/1,800/2,000mm Evacuated Tubes,

Absorbs Solar Energy, Transparent

Business Terms:

Port: Shanghai/Ningbo

Minimum Order Quantity: 3 Set/Sets

Supply Ability: 300 Set/Sets per Day

Payment Terms: L/C,T/T

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Product Packagings & Delivery Terms:

Packaging Detail: vacuum tubesolar system standard export package include wooden case and carton package OEM,OBM offered

Delivery Detail: 40HQ is 10 days

Specifications and Product Details:


We are a professional supplier of all kinds of solar water heaters.

  • Absorber of solar water heater
  • Absorbs solar energy converting into heat for use in water heating
  • Each evacuated tube consists of two glass tubes made from extremely strong borosilicate glass
  • Outer tube is transparent allowing light rays to pass through with minimal reflection
  • Inner tube is coated with special selective coating (Al-N/Al) which features excellent solar radiation absorption and minimal reflection properties
  • Top of two tubes are fused together and air contained in space between two layers of glass is pumped out while exposing tube to high temperatures
  • Evacuation of gasses forms vacuum
  • Vacuum in evacuated glass tube is less than 5 x 10-3Pa
  • Can only be reached and maintained over long period of time through specialized evacuation process in production resulting in almost total elimination of convection and conduction losses from tube
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