All-glass evacuated tube 58-2100mm

Unit Price: USD 2.1500 / Piece/Pieces
Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF
Min. Order: 6000 Piece/Pieces
Delivery Time: 10 Days

Basic Info

Model No.: 58-2100mm

Application: Water Heater, Solar Thermal

Pipe Material: Glass

Additional Info

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

Product Description

Solar water heater manuafacturer with our own production factory for vacuum tubes, and production capacity of 5 million pieces of tubes annually. All our testing and inspection standard is higher than Chinese national standards.

Automatic production line for vacuum tubes, and control the production speed and quality.

1.   Three-target solar vacuum tube
- Key component of solar collector and solar water heater
- Coating material: Al-N/Al or SS-Al/N/Cu.


Absorbance rate after coating (AM1.5)



Emission rate after coating (80±5 °C)


≤ 7

Stagnation parameter

m² °C/kW

≥ 251

Solar radiance exposure


≤ 3.8

Average heat loss coefficient


≤ 0.56

Selective coating material


Impact resistance

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

Vacuum degree


≤ 3X10-3




Transparent (AM1.5)

≥ 0.86 (ISO9806-1: 1994)

Contact Person: Guo



Address: No. 30766 East Jingshi Road,Jinan,Shandong

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