• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: RR solar tubes
  • Model Number: OS-SG series
  • Type: Non-Pressure
  • Application: Water Heater
  • Pipe Material: Glass

Packaging & Delivery

Packaging Details: Wooden box packing with foam sheet.
Delivery Detail: 10 days

Specifications

solar energy collector using all-glass vacuum tube
1. made of pyrex glass
2. great capability of solar energy collecting

Specifications

Glass tube solar vacuum tubes: 
1.Coating layer is CU-SS-ALN 
2.It can greatly improve the efficiency of collection.

Three target solar vacuum tubes specification:

1. Coating layer is CU-SS-ALN
2. It can greatly improve the efficiency of collection.

3. It can still work at the temperature below to -30°C

4. It has a higher absorption and lower emission than ordinary tubes

 

RR Trade Co.
OS-SG seriesSingletargetcoating solarvacuumtubeThree target coating solar vacuum tube
Tube structureAll-glass double-tube co-axial structure
Glass materialBorosilicate 3.3glass
Outer tube diameter and glass thicknessΦ=47±0.7mm &=1.6mm ±0.15mm
Φ=58±0.7mm &=1.6mm ±0.15mm
Φ=70±0.7mm &=2.0mm ±0.15mm
Inter tube diameter and glass thicknessΦ=37±0.7mm &=1.6mm ±0.15mm
Φ=47±0.7mm &=1.6mm ±0.15mm
Φ=58±0.7mm &=1.6mm ±0.15mm
Absorptive coating propertypropertyStructureGlass/AL/AL-ALN(H)/AL-ALN(L)/ALN       Cu-SS-ALN
Sediment method1 target magnetron sputtering3 Targets magnetron sputtering
Absorption ratioα=0.90~0.92(AM1.5)α=0.93~0.96(AM1.5)
Emission ratioε=0.09~0.1(80°C±5°C)ε=0.05~0.075(80°C±5°C)
Vacuum tightness5.0×10-3 Pa
Heat loss0.6-0.76W/(m2.°C)0.4 -0.6W/(m2.°C)
Resist cold-20°C-25°C
Resist high temperature220°C250°C
Service life12 Years15 Years

 

 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $
Learn More