Vacuum Glass Solar Hot Water Tubes , Solar Evacuated Tubes 1500mm / 1800mm Length

Solar Water Heater Accessories Solar Vacuum Glass Tube for Solar Water Heater and Solar Collector

OEM and ODM.

LOGO on the product and packages.

Description:

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,reisting 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 convertion.

The key element determing that the performance of tube is the technology of the film coating.

It’s 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 7%.

Key Specifications/Special Features:

Structure: all glass concentric coaxial

Glass material: borosilicate 3.3

Outer tube diameter and thickness:

Ø47 ±0.7 and 1.6mm

Ø58 ±0.7 and 1.6mm

Ø70 ±0.7 and 2.0mm

Internal tube diameter and thickness:Tube length: 800, 1200, 1500, 1800, 1900, 2000 or 2100mm

Ø37 ±0.7 and 1.6mm

Ø47 ±0.7 and 1.6mm

Ø58 ±0.7 and 1.6mm

Absorptive coating property:

Structure: Al-N/Al-Cu

Sediment method: 3 larger magnetron sputtering plating

Absorption: 0.93 to 0.96 (AM1.5)

Emittance ratio: 0.04 to 0.06(800±50c)

Vacuum tightness: P≤5.0 x 10.3Pa

Stagnation parameter: 260 to 300m2

Solar irradiation for obtaining a preset water temperature:Average heat loss co-efficient: ULT=0.4 to 0.6W

H≤4.7MJ/m2 (Ø58) H=3.7 to 4.2MJ/m2

H≤3.7MJ/m2 (Ø47) H=2.9 to 3.2MJ/m2

Lifetime: 15 years

Hail resistance: Ø25mm

Technical Data Sheet of Evacuated Collector Tube

Primary Competitive Advantages:

Country of Origin

Experienced Staff

Green Product

Guarantee/Warranty

International Approvals

Product Performance

Prompt Delivery

Quality Approvals

Reputation

Service

Main Export Markets:

Eastern Europe

North America

Mid East/Africa

Central/South America

Asia

Western Europe

Australasia

Trade Items:

Terms of payment: T/T or L/C

Terms of trade: CFR, CIF, FOB

Delivery time: Within 15 Days

Packing Sizes:

1880*340*170mm (58*1800mm,10pcs/carton)

Packing material: in export carton (FCL); in export carton plus wooden case outside (LCL)

Loading Quantity by container:

20’GP: 220CTN (2200PCS)

40’GP: 440CTN(4400PCS)

40’HQ: 580CTN(5800PCS)