Haining Haokang Solar Energy Co., Ltd.
Main products:Solar Water Heater,Heat Pump Water Heater
Contact Us
  • Contact Person : Mr. Zhou Jack
  • Company Name : Haining Haokang Solar Energy Co., Ltd.
  • Tel : 86-573-87872033
  • Fax : 86-573-87863966
  • Address : Zhejiang,Haining,Yuanhua Development Zone, Haining City, Zhejiang Province. China
  • Country/Region : China
  • Zip : 314416

CE, SABS solar powered water heater

CE, SABS solar powered water heater
Product Detailed
Ideal solution for high eletricity cost Installed on rooftop 15 years corrosion free Quick heating on sunny day


 NP-S60 ~ NP-S350

Work principle:

High quality vacuum tubes absorb sunshine and heat cold water in the vacuum tubes. According to the density difference of cold and hot water, when absorbing sunshine, cold water in vacuum tubes turning to hot water rises to tank, meanwhile, cold water in tank sinks to vacuum tubes. That is the circulation in this type of solar water heater. The whole system is always circulating continuously.


Technical Parameters:


Non-Pressurized Solar Water Heater

Material of out tank*

0.4mm galvanized steel /0.4mm 304 stainless steel(mirror polish)

Material of inner tank

Food grade 0.4mm SUS304-2B Stainless Steel

Tank insulating layer

50-55mm high-density polyurethane foam ((from Bayer,Germany )

Diameter inner/out tank

420/310mm ; 460/360mm

Electrical Heater

1.5-2kw  (Optional)

Inlet and outlet hole

Male G 1/2, 3/4,or customized size

Max pressure

0.2 Mpa

Solar collector tube

3.3 Borosilicate glass with AL/N/AL(Single target) or Cu/Ss/ALN(Three target)

Thickness of glass tube


Vacuum tightness

P≤0.005 Pa


Single target: as=0.90~0.93(AM1.5) Three target: as=0.93-0.96(AM1.5)

Emission ratio

Single target: εh=0.06-0.07(80C±5C) Three target: εh=0.04-0.06(80C±5C)

Stagnation temperature

Single target: Y=220~260m2.C/KW   Three target: Y=260~300m2.C/KW

Average heat loss coefficient

Single target: ULT=0.4~0.6W/(m2.C) Three target: ULT=0.4~0.6W/(m2.C)


Galvanized steel 1.5 mm / Aluminium alloy 1.5-2mm

Structure of tank

Air vent, drain, water inlet and outlet, electric heater, or customized


Argon arc welding, spot welding,

Heat preservation

72 hours

Feeder tank

Galvanized Steel / Stainless steel 5L feeder tank (Optional)


-20C / -30C


1. High quality SUS304-2B stainless steel for water tank, processed under ISO9001 system, tank will never rust or leak.

2. High borosilicate all glass vacuum tube has selective absorbing surface, absorptivity above 0.93 and emissivity below 0.05, it enables vacuum tubes to have good absorb and transmit performance.

3. Relevant accessories are optional instead of compulsory, client can choose some or none according to actual need.

4. Request for customized specifications are accepted.



CE, SABS solar powered water heater

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