10 units all glass vacuum tube, evacuated tube for solar water heater 58mm dia 500mm length

شناسه محصول: 449084896 دسته:
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نقد و بررسی اجمالی
  • گواهینامه: None
  • Origin: CN(Origin)
  • مدل: MS-SWH-VTB-500-58
  • Pipe Material: Glass
  • Type: Vacuum Solar Collector
  • Application: Water Heater

This listing includes 10 units All Glass vacuum tubes!

Just like an automobile engine, the computer CPU, evacuated tube is core of the solar water heater.

It’s similar to a conventional Dewar flask and consists of two borosilicate glass tubes, resisting to high chemical and thermal shock. The outer side of the inner tube is coated with a sputtered solar selective surface. This coated inner tube is closed at one end and sealed at the other end to the outer tube. The annular space between the outer tube and inner tube is evacuated to avoid heat loss in conduction and conversion.

The key element determine that the performance of tube is the technology of the film coating, and it is the best efficient tube you can find in China, with the highest absorption rate of near 93% comparing with common rate of 90% and lowest emission rate about 4% comparing with common rate of 7%.

Evacuated tubes are aligned in parallel; the angle of mounting depends upon the latitude of your location. In a North South orientation the tubes can passively track heat from the sun all day. In an East West orientation they can track the sun all year round.

The efficiency of a evacuated water heater is dependent upon a number of factors, one important one being the level of evacuated radiation in your region.

Basic جزئیاتs of Three Target Glass Vacuum Tube


All-Glass Double-tube co-axial structure

Glass Material

High borosilicate 3.3 glass

External pipe diameter and thickness

58mm, +/-0.6mm; T=1.6mm

Internal pipe diameter and thickness

+/-0.6mm; T=1.6mm

Pipe Length


Absorptive coating property


Raw glass/Cu/SS-ALN(H)/SS-ALN(L)/ALN

Sediment method

3 Target magnetron sputtering plating

Specific absorption

As=0.93~0.96 (AM1.5)

Emission ratio

h=0.04~0.06 (80oC+/- 5)

Vacuum Tightness


Idle sunning property parameters


Solar Irradiation for obtaining a preset water temperature


H<=3.7~4.2 MJ/m2


H<=2.9~3.2 MJ/m2

Average Heat Loss Coefficient

ULT= 0.4~0.6 w/( m2, oC)


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Terms of sale

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Delivery details

· Your item will be shipped within 48 hours in business days if payment for the order is cleared before 8PM PST daily (except Saturday, Sunday and Holidays).  If there’s an exception, we will inform you.

·Buyer, as the importer, is responsible for paying the customs clearance cost or related TAX.

About us

· Welcome to our store. We are specialized on Energy Saving electronics: Solar water heater and controllers, pump stations, solar charge controller, inverter, SOLAR Lamps, etc.. Please visit us often. We are pleased to work with you!

Contact us

· All communication is handled through emails and ALI message. We strive to answer all emails as quickly as possible.

مشخصات کلی
وزن 500 g
نظرات کاربران

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