nonpressure stainless steel solar water heater ,solar hot water, evacuated tube solar water heaters

Price: 50.0~500.0 USD
Payment Terms: T/T,L/C
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Basic Info.
  • Application: Water Heater 
  • Type: Non-Pressure 
  • Pipe Material: Glass 
  • Brand Name: Ontek/OEM 
  • Model No.: HJNP-SS 
  • Place of Origin: Zhejiang  
  • Min.Order: 1 Set/Sets
Supply Capacity
  • Production Capacity: 3000sets/month
  • Packing:carton for container order, carton+wooden for sample order
  • Delivery Date: 14days
 Technical parameter:
1.Inner water tank: SUS304-2B stainless steel, 0.31mm-0.51mm thickness
2.Outer water tank: Color coated steel, 0.31-0.41mm thickness
3.Insulation layer: Polyurethane foam, 30-60mm thickness
4.Tank capacity: 80-415L
5.Logo: OEM/Ontek
Vacuum tubes:
Category: tri-element tubes/purple gold tubes/common tubes)
Material: Borosilicate glass 3.3
Absorptive coating:Grade ALN/AIN-SS/CU , Grade ALN/AL
1.Frame: Galvanized steel, 0.8-1.4mm thickness/Stainless steel 201- 0.31mm thickness/Aluminum alloy
2.Frame angle: 20-58 degree
1.Tube at high temperature with magnetic Force
2.A long time of heat preservation
3.Stable and reliable performance, well wind resistance
4.Patent protected collision from the side bracket resistant design
5.Meeting the requirement of washing clothes, abstersion and design
6.Dual purpose brackets for both flat and inclined roof
7.Meeting the demand of well-to-do families
8.Economic goods surpass their money  
Evacuated tubes Working principle
The selective coating on the inner cover of the evacuated tubes converts solar energy into
heat energy and water in evacuated tubes the heat. When temperature rises along with
density drops, and weight goes down, hot water will go up to exchange with cold water in
tank. In this way, the temperature of the water in tank goes up. We can use hot water for
   The basic non-pressure system solar water heater is a passive system, which relies on a natural principle-thermosiphon.There is water in evacuated tubes and free to flow into tanks.When the water in tubes is heated by sun's rays firstly,this makes water in the tubes lighter. Therefore the cold water in the tank move downwards and hotter water move upside into the tank.It is an open circuit since the air vent and the overflow pope is open to the air.
    All the storage tanks are tested before leaving with tested pressure of 0.05MPa(0.5bar).But the operation pressure should be 0 MPa.The daily efficiency is over or equal to 50% normally and 42% in winter. We welds the inner tank by high-frequency ring or argon arc techniques.

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Ms. Nancy_sun (sales)
Tel: 86-573-87887725
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Contact Method
Haining Hengrui Solar Energy Technology CO.;LTD
Tanqiao Industrial Zone,Yuanhua Town, Hangzhou, Zhejiang, China (Mainland) / 314400
Fax: 86-573-87816388
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