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Zhejiang Hongguang Green Energy Co., Ltd.
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The direct-plug unpressurized solar water heater

The direct-plug unpressurized solar water heater

MOQ : 10 Set/Sets
Price : FOB USD 100~400 / SetGet Latest Price
Payment Terms : L/C,T/T
Supply Ability : 2000 Set/Sets per Week
Certification : CE, SRCC ISO9001:2000 Solar keymark
Packaging Details : Suitable export packing for samples/ FCL, for samples we have special packing.
Delivery Time : 5-10 days for 1x20ft container 10-15 days for 1x40ft container
Port : Shanghai Ningbo
Place of Origin : Zhejiang
Heating System : Thermosyphon (Passive)
Housing Material : stainless / color / galvanized steel
water tank capacity : 60-350 liter
Type : Evacuated Tube
Brand Name : Haokang
Model Number : NP-L / NP-S
Pressure : Unpressurized
life : 15 years lifetime 5 years quality guarantee
Installation : Freestanding
power : non-pressure
Color : customised
Circulation Type : Direct / Open Loop (Active)
Connection Type : Direct-Plug
Category : Other Water Heaters
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1. Perfect design and good quality
2. OEM offered
3. simple and convenient in use

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------------------ NP-S stainless steel and NP-L color steel unpressurised solar water heaters

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Our products were provided both domestic and overseas. With-so many-years of professional solar water heater-produce experience we do have the ability to offer you both a perfect design and- good quality.

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We have three different models for your selection (the stainless / color / galvanized) steel covered outside image.- -

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How-it works

The no-pressure type solar water heater is the simplest one, the vacuum tube and water tank are linked together, the working principle can be defined as 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 cheapest model, but very efficient. In summer, the water temperature can reach up to 95 degree, nearly boiling.

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The inner tank is stainless steel 0.4mm thickness.
The out tank is stainless / color / galvanized steel ..
Frame are galvanized steel or aluminum alloy

Water tank capacity : 60-350 liters

The polyurethane layer 45-55 mm


Advantages

1.Sold with CE SRCC ISO9001:2000 certificates

2. Request of customized type can be accepted. Unpressurised design , simple structure and Dual-purpose brackets make it convenient in use ( you can install it for both flat and inclined roof) --

3 .- Longtime heat- preservation for about 60-70hours

4.- Green, economical and energy-saving (cold water separated from hot water and you do not need to install an electric backup heater)

5.- 15 years lifetime 5 years lifespan

6.- Optional accessories ( assistant tank, intelligent controller ) they are optional instead of compulsory, you can choose some or none according to actual needs) .

7. stainless steel covered appearance looks more beautiful

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Detailed specifications

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Item name

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Vacuum tube

Tank

capacity

Diameter

length

quantity

Millimeter

Millimeter

tube

liters

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Color steel appearance (Np-L)

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Stainless / galvanized- steel- covered appearance (NP-s )

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Dia 47

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1500

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10/15/17/

20/25

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60/90/100/

120/150

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Dia 58

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1800

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8/10/12/15/

18/20/25

30/32/35

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80/100/120/

150/180/200/

250/300/320/

350

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