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Quick Details

  • Type: Evacuated Tube
  • Pressure: Unpressurized
  • Circulation Type: Direct / Open Loop (Active)
  • Heating System: Thermosyphon (Passive)
  • Connection Type: Direct-Plug
  • Installation: Freestanding
  • Housing Material: Galvanized steel,Colour Steel
  • Certification: RoHS, Solar Keymark,SRCC
  • Capacity: 200
  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: SunWe & OEM
  • Model Number: NP-1800/58-20WD
  • Application: Washing,Bathing,Supply hot water.
  • Model type: Evacuated tube solar water heater
  • Inner tank: SUS304/ 2B food grade class
  • Outer tank: Colour steel with PVDF
  • Bracket: Aluminum Alloy
  • Payment Term: T/T, 30% Deposite

Packaging & Delivery

Packaging Details Pre-assembling packing with Export standard CARTON
Vacuum Tubes is plywood box for sample package.
Delivery Time 10 to 15 days

 

  Low pressurized solar water heater    

 

 

Low-pressurized or non-pressurized system is the most economic solar water heater which work stable and no need any maintenance. It must be installed on the top, such as roof, to get enough hot water flow pressure by the gravity.

 

 

 

 

  1. Low Pressurized Solar Water Heater Features: 

 

 

1). Cheap and reliable solution, Simple structure, Easy installation.
2). High-efficiency.
3). Scientific and reasonable design.
4). Withstand water pressure no more than 0.05MPa
5). Electric heater 1.5KW option.

 

 

 

 

  2. Specification:     

 

 

1). Inner tank: SUS304-2B stainless steel by argon protect welding& thickness: 0.4~0.5mm
2). Outer tank:Color steel coated anti-corrosion layer &thickness:0.4~0.5mm;
3). Insulation layer: Imported polyurethane foamed with overall high pressure equipment &thickness:50~60mm;Density:42~45KG/m3;
4). Vacuum tube:SS-AlNX/Cu or Al-N/Al high selective coating tube &thickness:1.6mm
5). Freeze protection:-25oC
6). Hair resistance: 25-35mm
7). Bracket: hot galvanized steel painted with anti-corrosion layer &thickness:1.5mm; Freeinstalled on inclined or flat roof; Wind stress: 183.5km/h without damage
9). All install documents are free
10) Option Feeder tank:
    Inter-tank: SUS304-2B stainless Steel
    Outer-tank: Stainless steel/ color steel
    Capacity: 8L/20L
11). Option Controller: SP26 (More details)

 

 

Place of Origin

China

Model Number

NP-GS

Price Terms

FOB, C&F, CIF

Brand Name

SunWe & OEM

Payment Terms

T/T, L/C

Minimum Order

1 set as sample

Supply Ability

3500sets/month

Delivery Lead Time

10-15 days

 

  

 

Item No.

                           Solar Vacuum Tube

Capacity ( L)

Loading Qty / sets

qty / pcs

size / mm

absorber

 

20GP

40GP

40HQ

NP-GS-5818

18

Ø58 X 1800

  AL-N/SS/CU (Tri-elements)

180

48

97

113

NP-GS-5820

20

200

43

88

103

NP-GS-5824

24

240

38

77

90

NP-GS-5830

30

300

31

62

73

 

 

 

 

 

  3. Working Principle:      

 

 

 It is the simplest one, the tube and tank are linked together, the working principle is like this: the vacuum tubes collect the sunshine and make the water in the tube to be hot, and then the cold water in tank will circulate with water in tank automatically from time to time. This is the simplest and normal model, but very efficient. In summer, the water temperature can reach up to 95 degree, nearly boiling.

 

The design of this type is easy operate. The assistant tank is used to fill the cold water automatically. The design is scientific and reasonable, it could always provide hot water.

 

 

 

 

 

 

 

 

  4. Product Model:     

 

 

 

 

 

 

 

 

 

 

 

  5. Product Parts:        

 

 Assistant Tank ( 5Liters )

 

 

 

 

Air Vent

 

 

 

Aluminium Alloy Frame 

 

 

 

 

 

                                       Sunwe Solar , Your Best Choice !                                      

 

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