Collector Plus

Collectors Plus

One of the lowest heat losses coefficient in Europe. In order to offer high-class collectors which work efficiently in the MENA region, and in South Europe in the same time, Sigma has developed the flat plate collector PLUS.

It is consistent with our commitment to provide maximum efficiency, high performance and total reliability.
The PLUS 15, PLUS 20 and PLUS 25 collectors are manufactured based on the most modern certifications ( CE , ISO EN 9001 : 2015 , solar key mark ) and specifications in the EU.

External dimensions ( mm) 1463 x 990 x 75
Absorber area (mm) 960 x 1420
Frame Anodised extruded aluminium
Absorber sheet Al, high selective vacuum coating ( Tinox )
Absorber welding / absorber type Laser / full plate
Absorption / emission 95% / 3-5%
Connections Ø22 mm
Glass Low iron tempered 3.2 mm
Transmittance of glass 91%
Insulation 30mm solar rockwool back ( density of 60kg/m³ ) / 20mm glass wool side
Weight 24kg
Fluid volume  1,3L
External dimensions ( mm) 1965 x 995 x 75
Absorber area (mm) 960 x 1930
Frame Anodised extruded aluminium
Absorber sheet Al, high selective vacuum coating ( Tinox )
Absorber welding / absorber type Laser / full plate
Absorption / emission 95% / 3-5%
Connections Ø22 mm
Glass Low iron tempered 3.2 mm
Transmittance of glass 91%
Insulation 30mm solar rockwool back ( density of 60kg/m³ ) / 20mm glass wool side
Weight 27kg
Fluid volume  1,6L
External dimensions ( mm) 1970 x 1222 x 75
Absorber area (mm) 960 x 1930
Frame Anodised extruded aluminium
Absorber sheet Al, high selective vacuum coating ( Tinox )
Absorber welding / absorber type Laser / full plate
Absorption / emission 95% / 3-5%
Connections Ø22 mm
Glass Low iron tempered 3.2 mm
Transmittance of glass 91%
Insulation 30mm solar rockwool back ( density of 60kg/m³ ) / 20mm glass wool side
Weight 40kg
Fluid volume  1,8L