Pressurized compact solar water heater
Working principle
The heat pipe is hollow with the space inside evacuated,
much the same as the solar tube. Inside the heat pipe is
a small quantity of the purified water and some special
additives. The heat pipe used in Yabang solar collectors
have a boiling point of low temperature .so when the
heat pipe is heated pipe the water rapidly vaporizes .
this vapor rises to the top of the heat pipe transferring
heat .As the heat is lost at the (top ), the vapor condenses
to form a liquid (water )and returns to the bottom of the heat pipe to once again repeat the process .

1） High efficiency solar collector using heat pipe and evacuated tubes

2） Able to be used in all climates

3） Copper heat pipes for rapid heat transfer

4） Easy installation for mounting on the roof or ground

5） Suitable for main water pressure

6） 150mm of pipe in inner tank for enough heat exchange

7） Patent connection design isolates copper heat pipe from
6 stainless steel inner tank ,greatly reduces damage caused
by galvanic corrosion.
The end covers of the inner tank The inner tank
Equipper with flange, easy to clear The inner tank is made up of SUS304-2B (thickness 1.2mm)
the inner tank and heat pipe.

The inner tank
Equipper with flange, easy to clear The inner tank is made up of SUS304-2B (thickness 1.2mm)
the inner tank and heat pipe. Stainless steel, adopts two advance welding technologies .
one is automatic, double sides side protection argon arc
welding technology the other one is automatic rings argon
arc welding technology. Thus, nearly no damages were
done to the stainless steel

Technical date
Item No. Effective Light area Tank’s Capacity Loading20’/40/40’HQ pcs
HKDD-470-58-1.8-15 1.92 135L 51/106/125
HKDD-470-58-1.8-18 2.16 150L 43/88/104
HKDD-470-58-1.8-20 2.40 165L 37/78/92
HKDD-470-58-1.8-24 2.88 200L 33/70/82
HKDD-470-58-1.8-30 3.60 250L 27/56/66

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