Color Steel Non Pressure 240L Evacuated Tube Solar Water Heater System
Description:
| Description | Non-pressurized solar water heater |
| Material of out tank | 0.31-0.4mm thickness color steel/ fluorine carbon steel |
| Material of inner tank | Food grade 0.31-0.4mm 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: | 1.5mm thickness Galvanized 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 | 2.26 m² |
| Tube quantity | 24tube 58x1,800mm |
| Tank capacity | 240L |
Accessories: Stainless bolts & nuts, water-proof silicon rubber, anti-aging dust-proof rubber seal, plastic pipe holder and ventilating cap to ensure their lives as long as other parts of the system
Optional Devices
1.Assistant tank, to automatically feed tap water into storage tank to keep it sufficient always
2.Electrical heater, as an auxiliary heating element in case of raining or snowing days so as to ensure a continuous hot water supply
3.Intelligent controller, automatically controls water refill and start up of auxiliary heating device, more intelligent operation
How non-pressurized solar water heater works
1. Non-pressurized 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.
Applications:
Domestic hot water for shower, washing
Competitive Advantage:
1. Advanced welding technology to prevent any leaking of tank
2. Special chemical layer between inner tank and outer tank to make sure the density of foam the same everywhere
3.Non-pressurized solar water heater is such kind of a most economical system with high efficiency at the same time. It works depending on the gravity of water, so it's much better to be installed on the slope or flat roof as top as possible to get enough hydraulic pressure.
4.A simple assistant tank can be equipped for tap water refill automatically or with an intelligent controller to control the start up of auxiliary heating device at the same time.
