solar pressure heating

OEM offered
Various size
High efficiency
solar pressure heating system
Environmental friendly & nice design
solar pressure heating

1. Spcification of our vacuum tube
*size: 47*1500mm, 58*1800mm, 47*1800mm, etc
*coating: ALN/AIN-SS/CU
*thickness: 1.6-2.3mm thickness
*hail resistance: 25g-75g
*material: 3.3 high borosilicate glass
*evacuate rate: 97%
*absorptance: 93%-96%
*heat loss: 6%

2. Working Pinciple of heat pipe vacuum tube
The selective coating on the inner tube collect solar energy and heat the heat pipe through the
aluminium fins. The liquid in the heat pipe changes into vapour and then rise up to transfer the
heat to the condenser. Vapour becomes liquid after the heat been transferred. The process occurs
again and again once the collector(s) is/are heated by the sun.

3. About heat pipe tube
*Combines glass vacuum tube and copper heated pipe in one unit.
*No water in copper heated pipe, which shortened the heating time.
*Without water in glass vacuum tube, product can be used in cold weather of -30centi degree
*Widely used for pressurized solar water heaters and solar projects

Technical parameter
external pipe diameter and thickness

φ=47±0.7mm &=1.6mm φ=58±0.7mm &=1.6mm
φ=70±0.7mm &=2.0mm
internal pipe diameter and thickness
φ=37±0.7mm &=1.6mm φ=47±0.7mm &=1.6mm
φ=58±0.7mm &=1.6mm
pipe length
800mm, 1200mm, 1500mm, 1600mm,
1800mm,1900mm, 2000mm, 2100mm
Vacuum tightness
P≤5.0×10-3 Pa
Average heat loss coefficient
ULT=0.4~0.6W(m2.ºC)