Caracteristicile tuburilor vidate (1500mm, 1800mm, 1900mm)

Diametru exterior:
47 mm (  *P.S.x/47/1500/y)
58 mm ( **P.S.x/58/1800/y)
70 mm (***P.S.x/70/1900/y)
Diametru interior:
37 mm(*)
47 mm (*)
Coeficient de absorbtie termica: > 0.94
Coef. de pierderi: < 0.8 watt/m
Absorbtia termica max. suportata: 270 gr C
Materialul sticlei: sticla yena (borosilicate glass 33)
Vacumare tub: < 5X10-3Pa
Spatiu vacumat: 5 mm
Material de absorbtie: Aluminiu
Stratul de acoperire: Nitrat de aluminiu
Rezistenta la vant: 30m / s
Rezistenta la frig: -30 gr C
Rezistenta la lovituri: 25 mm (diam) grindina
Caracteristicile tuburilor vidate