Germanstar HP 65

Germanstar HP 65 – Quality “Made in Germany”

The predicate “Made in Germany” stands especially for high quality and powerful vacuum tubes. Due to its unique design our heatpipe model Germanstar HP 65 provides an optimum of performance. In this full vacuum absorber, the absorber and the heatpipe are located inside a vacuum, which generates also high yields on so-called ‘low-light days’ and is therewith most suitable for solar supported heating.

Key data:

  • Tube diameter 65mm
  • Heatpipe full vacuum collector
  • Very good performance data (reference area absorber) from n0(-)=0.833; a1(W/m²K)=1.85; a2(W/m²K²)=0.0007
  • High low light yields with fast reaction
  • Very high yields in cold environments (winter)
  • Very good wind behaviour when installed on stands
Specifications Germanstar HP 65
High Vacuum Tube Collector with Heatpipe
Type high vacuum tube, sealing by thermo compression germanstar_hp_65_table
Certificate, Performance Test DIN 4757,
pr EN 12975
Shape of absorber flat
Modules Germanstar HP 65/20 Germanstar HP 65/30
Number of tubes 20 30
Active absorber area 2.007 m² 3.010 m²
Aperture area 2.143 m² 3.214 m²
Gross area 3.071 m² 4.613 m²
Length x width x height (mm) 2,050 x 1,498 x 125 2,050 x 2,250 x 125
Weight (empty) 54.0 kg 81.4 kg
Pressure loss at flow rate 100 l/h 0,0379 bar 0,1387 bar
Liquid contents 1.1 l 1.5 l
Glass material High-grade boron silicate hard glass
Glas tube diameter 65 mm
Wall thickness 2 mm
Vacuum <10-5 mbar
Absorber material Copper
Coating Titanium-Nitrite-Oxide
Absorption coefficient > 95%
Emission coefficient < 5%
Tilt angle 20° to 90°
Test pressure 9 bar
Permissible operating pressure 6 bar
Max. idle temperature of module 238 °C
Max. idle temperatur of tube 252 °C
connection of modules Locking ring
Manifold Copper
Manifold casing Aluminium, extruded
Coating Burned-in varnish, RAL 7016
Insolation Mineral wool, 115 kg/m³
Base support, side bars Aluminium