タイトルまたは説明

Solar Vacuum Tube

Vacuum valve,Vacuum pipe,Evacuated tube,Heat pipe

Features:

1) Typical Size: Φ*7x1, **0mm / Φ*8x1, **0mm / Φ*0x2, **0mm

2) External tube diameter: Φ*7+/*0.7mm, Φ*8+/*0.7mm, Φ*0+/*0.7mm

3) Internal tube diameter: Φ*7+/*0.7mm, Φ*7+/*0.7mm, Φ*8+/*0.7mm

4) Thickness: 1.5mm+/*0.1mm, 1.7mm+/*0.1mm, 2.0mm+/*0.1mm

5) Tube length: from 1.2m to 2.1m

6) Glass material: borosilicate glass 3.3

7) Absorbing coating properties: AL-N/AL or Al N/Al N-SS/Cu selective absorbing coating

8) Absorptance: 0.*2

9) Emittance: 0.*7

*0) Heat loss coefficient: ≤0.*0W/(m²x℃)

*1) Pressure-endure ability: 1Mpa

*2) Bearing hailstone ability: *5mm

*3) Lifespan: *5 years

*4) Widely used for solar water heater

*5) Packing: export carton