High Quality Evacuated Tube for Solar Water Heater, European Standard Evacuated Tube, Vacuum Tube for Solar Thermal Heating Suppliers in China

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Evacuated tube for solar thermal system

Evacuated tube for solar thermal system

    Payment Type: L/C,T/T
    Terms of Trade: FOB,CFR,CIF
    Min. Order: 6000 Piece/Pieces
    Delivery Time: 10 Days
    Packaging: standard package of 10 pcs/carton, customized package is avaliable on request
    Productivity: 5 million pieces annually
    Brand: Linuo Ritter International
    Transportation: Ocean
    Place of Origin: China
    Supply Ability: 10000 pcs per day
    Certificate: ISO9001,ISO14001,OHSAS18001
    Port: Qingdao

Basic Info

Model No.: 58*1800 vacuum tube, 58*1500 vacuum tube, 58*2100 vacuum tube

Product Description

The tubes are made from low emissivity borosilicate glass (glass with a very low iron content that has superior durability and heat resistance ) with an all-glass seal and they employ AL/N on AL selective coating, which enables the use of the whole solar energy spectrum to generate heat.

This produces greater thermal efficiency in bright sunshine but also produces high efficiency in overcast or diffuse sunlight conditions. Further, the tubes are evacuated and have a barium getter (vacuum indicator) which changes color from silver to white if a tube`s vacuum has been compromised.

An examination of the tubes shows that the outside is actually 2 layers of glass and a vacuum has been created between them.


A good way to demonstrate this would be to fill an empty tube with very hot water and notice that it does not even get warm as you hold the tube in your hands. That is because of the [thermos effect" created by having a vacuum between the layers of glass.


Started the production of vacuum tube/evacuated tube since 1998.

Annual production capacity of 5 million pieces.

Daily prodution capacity of 20000 pieces tubes.

Has been supplying the vacuum tube towards the worldwide well-known manufacturer of solar water heater and solar thermal products.

Higher absorption rate of 92%-94%, lower emission rate.

47-1500mm, 58-1800mm, 58-2100mm tubes are avaliable.

Key component of solar collector and solar water heater

Coating material: Al-N/Al or SS-Al/N/Cu.



Specification


Absorbance rate after coating (AM1.5)

α%

≥89

Emission rate after coating (80±5 °C)

α%

≤ 7

Stagnation parameter

m² °C/kW

≥ 251

Solar radiance exposure

MJ/m²

≤ 3.8

Average heat loss coefficient

W/(m²°C)

≤ 0.56

Selective coating material

AL-N/AL, SS-AL-N/Cu

Impact resistance

Steel Ball Test: Steel ball with diameter of 30 mm fall on the evacuated tube vertically from 450 mm height.

Vacuum degree

Pa

≤ 3X10-3

Pressure

Mpa

0.6

Transparent (AM1.5)

≥ 0.86 (ISO9806-1: 1994)


Solar Energy Collector Vacuum Tube Three Target 58x1800

Linuo Ritter International Co.,Ltd

 Linuo Ritter International Co., Ltd., which focuses on global business of renewable energy, is a subsidiary of Linuo Paradigma -- the first Sino-German joint venture in solar thermal market and one of the industry-leading companies in China. Since the establishment in 2001, Linuo Paradigma has always held up to the philosophy of Solar Energy Changes Lives, and has devoted itself to the energy structure revolution leaded by Solar Energy. After 15 years' focus on development and applications of distributed renewable energy, Linuo Paradigma has walked from basic vacuum tubes and domestic solar water heater manufacture to R&D on world-leading CPC collector with German Ritter Gruppe, and then to turnkey solution supplier of renewable hot water, heating and cooling. Depending on the cooperation with Shanghai Jiaotong University, Linuo Paradigma expanded businesses to air-source heat pump in 2012, and promoted a complementary distributed renewable energy system with integration of solar system and air source heat pump. In the aim of spread its solar dream around the world, Linuo Paradigma has started oversea business since 2005 and established Linuo Ritter International in 2010 to provide better service for global market. Linuo Ritter International now provides service to customers in more than 40 countries worldwide, and has exported more than 1 million sq solar thermal products to overseas market. We are sure that our success rests upon long-term relationships with our customers, employees and partners, which is built on respect, trust and commitment. Achieve sustainable development by using alternative energy!

Company Info

  • Company Name: Linuo Ritter International Co.,Ltd
  • Product/Service: Solar Water Heaters , Solar Collector , Solar Vacuum Tube , Heat Pump Water Heater , Solar Hot Water Heating , Solar Products
  • Capital (Million US $): 300,000USD
  • Year Established: 2001
  • Total Annual Sales Volume (Million US $): Above US$100 Million
  • Export Percentage: 21% - 30%
  • Total Annual Purchase Volume (Million US $): Above US$100 Million
  • No. of Production Lines: 6
  • No. of R&D Staff: 31 -40 People
  • No. of QC Staff: 21 -30 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 50,000-100,000 square meters
  • Factory Location: Jinan City, Shandong Province, China
  • Contact Person: Mr. Guo
  • Tel: 86-531-88729112
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