Non-Pressunized Solar Water Heater
Vacuum tube solar water heater:high efficieny,low heat loss,low cost,reliable quality,good f
Minimum Order Quantity: 10 Set/Sets
Supply Ability: 7000 Set/Sets per Month
Payment Terms: L/C,T/T,Western Union
Contact SupplierPackaging Detail: Standard Export Packing
Delivery Detail: 15 days
Non-pressure Solar Water Heater
How non-pressure solar water heater works
1. Non-pressure solar water heater of all glass evacuated tube collector integrated with storage tank, are ideal for use in houses and other applications where cheap, reliable hot water supply is required. They are simple, economic and practical.
2. As the specific gravities of hot water and cold water are different, cold water goes downward and hot water goes upward.
3. When cold water in evacuated tubes is heated, it becaomes lighter and goes to the water tank, while cold water in the tank goes down to the evacuated tubes
4. Through this circulation, the cold water in the water tank will be gradually heated.
Non-pressure solar water heater features
1. Cheap and reliable solution, Simple structure, Easy installation
2. High efficiency
3. Withstands water pressure no more than 0.1MPa
4. Operated without any power supplying
5. Electric heater can be used as back up in rainy days
6. Hot water can be used directly, or can be used as a pre-heated
Solar hot water heating system optional accessories
1. Assistant tank: 3/5/8/10/12L
2. Controller
3. Electrical heater: 1.5/2/2.5kw
Solar hot water heating system specification
Descripition | Non-pressure solar water heater |
Material of out tank | 0.31-0.4mm thickness Stainless steel |
Material of inner tank | Food grade 0.31-0.6mm thickness SUS304 stainless steel |
Tank insulating layer | 55mm 45kg/m³ high-density polyurethane foamed |
Inlet and outlet hole | Male G 1/2, 3/4 |
Max pressure | 0.05 Mpa |
Solar collector tube | 3.3 Borosilicate glass with N/Al coating |
Thickness of glass tube | 1.6mm |
Vacuum tube tightness | P≤0.005 Pa |
Absorption | as=0.93-0.96(AM1.5) |
Emission ratio | εh=0.04-0.06(80C±5C) |
Idle sunning property parameters | Y=220~260m2.C/KW |
Average heat loss coefficient | ULT=0.6~0.7W/(m2.C) |
Bracket: | Stainless steel |
Structure of tank: | 4 holes for air vent,overflow,water inlet and outlet,electric heater |
Welding: | Argon arc welding |
Fastening pieces: | Made of stainless steel screw |
Absorber area | 1.875m² |
Tube quantity | 20tube 58x1,800mm |
Tank capacity | 165L |