Regulus flat solar collectors
Examples of Regulus flat collectors implementation
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Flat plate solar collectors have a large glass surface and a large absorber. In full sunshine, their power output is high. They utilize most of the solar energy that reaches their surface.
The materials used guarantee a long service life and stable parameters of the collectors. All models are equipped with an anodized aluminum frame and a copper absorber with a long-life absorption layer (carried out by vacuum deposition).
The absorption layer of these collectors has a highly selective surface. Its ability to absorb solar radiation is high but its heat dissipation (heat loss by dissipation) is very low.
Solar tempered glass in all models is highly shatterresistant and permeable for solar radiation. KPW1 model uses solar antireflection glass that represents the best in solar glasses. A special coating on both sides of the glass eliminates reflections of solar radiation and the absorber receives more solar radiation..
Thermal insulation limits the collector’s
thermal loss and increases its efficiency. The
thickness of the mineral wool insulation is between 2
and 6 cm depending on the model.
Regulus solar collectors are certified by an independent Test Lab according to the latest European standard EN 12975-2. This standard involves among others also measurement of the output and efficiency, of mechanical resistance incl. hail resistance and long-term weather resistance.
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List of flat solar collectors: |
The right collector should be selected depending on your application - for heating DHW, heating a pool, or as additional heating to your low-energy house. Collectors of better parameters will enable you utilizing solar energy even under unfavorable conditions, in the spring and autumn. |
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KPG1 solar collector
KPG1 is a new, advanced collector designed for high efficiency and performance while maintaining reasonable price. it is manufactured on a robotized production line with minimum of human labor. The new bonding technology without frame brings an elegant design and a large surface area for solar energy reception.
- Vertical as well as horizontal installation possible
- Favorable price/performance ratio thanks to robotized production
- Harp absorber made of copper pipes with laser-welded aluminum sheet, with highly selective Eta plus surface
- Large aperture and collector area compared to the total collector area
- Low hydraulic resistance = low circulation pump power consumption
- Enables parallel connection of collectors into large arrays
- Solar Keymark certified collector
- Elegant frameless design
| Model | KPG1-ALC |
| Dimensions W × L × H | 1170 × 2150 × 83 mm |
| Collector surface |
2,52 m2 |
| Connection dimensions |
4× pipe Cu 22 |
| Absorber | Copper-aluminum/Harp type |
| Absorber surface |
Blue Tec Eta Plus |
| Insulation thickness |
4 cm |
| Max. working pressure |
6 bar |
| Fluid volume |
1,7 l |
| Weight | 38 kg |
| Glass | clear solar |
| Code | 10336 |
The absorber of KPG1 is manufactured using the latest technology of aluminum sheet laser welding with copper pipe. This brings maximum heat transfer thanks to a double joining line and a larger heat transfer surface.
EtaPlus, the highly selective blue absorber surface, is made of a ceramics-metal compound (CERMET) and represents one of the best selective materials actually produced. The surface features high solar absorptance and low heat loss by heat emission. Surface passivation together with the ceramic layer works as an efficient diffusion barrier, protecting the surface against corrosion.
This all guarantees a long-term stability of solar parameters - absorptance α= 95 % (± 2 %) and emissivity ε= 5% (± 2 %), and a long service life of the absorber.
Eta plus coating is manufactured by the renowned German company BlueTec who considers environment protection very important. No harmful exhaust gas or chemicals are generated during application of Eta plus on an absorber. The process is completely free of emissions. Only electrical energy is required: approx. 1 kWh per m² of surface, and it is just this 1 kWh that will be produced by each 1 m2 of collector in its first hour of operation. Over its lifetime the Eta plus coating can produce about 20,000 kWh/m2 of clean solar energy without any CO2 emissions.
Flat solar collectors KPA1 ALP, KPS11 ALP and KPC1 BP
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collector KPC collector KPS collector KPA 1 ALP
KPS11 and KPC collector cross section
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Hydraulic connection of KPS11 and KPC collectors |
| Model | KPA1 -ALP |
KPC1 - BP | KPS11 - ALP |
| Dimensions w x l x h | 1000 x 2000 x 80 mm | 1000 x 2000 x 96 mm | 1247 x 2000 x 95 mm |
| Collector surface | 2 m2 | 2 m2 | 2,49 m2 |
| Connecting sizes | 4 x pipe Cu 22 | 4 x pipe Cu 22 | 4 x pipe Cu 22 |
| Absorber | copper-aluminum/ parallel type | nickel-plated copper / parallel type | copper / parallel type |
| Absorber surface | Tinox | black chrome | Eta plus |
| Insulation thickness | 3,5 cm | 4 cm | 5 cm |
| Working pressure | 6 bar | 6 bar | 6 bar |
| Liquid volume | 1,6 l | 2,0 l | 2,2 l |
| Weight | 34 kg | 37 kg | 45 kg |
| Glass | 4 mm | 4 mm | 4 mm |
| solar prismatic | solar prismatic | solar prismatic | |
| Code | 9651 | 7610 | 8183 |
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Flat solar collectors KPS10 ALP
KPS collector cross section
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Hydraulic connection of KPS collectors
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| Model | KPS10 - ALP |
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| Dimensions w x l x h | 1144 x 2044 x 80 mm |
| Collector surface | 2,34 m2 |
| Connection dimensions | 2 x pipe Cu 12 |
| Absorber | copper / serpentine type |
| Absorber surface | Sunselect |
| Insulation thickness | 4 cm |
| Max. working pressure | 10 bar |
| Fluid volume | 1,6 l |
| Weight | 44 kg |
| Glass | 4 mm |
| solar prismatic | |
| Code | 8258 |
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Flat solar collectors KPW2 - C32 HTF
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Eta plus coating is made by the renowned German company BlueTec who puts emphasis on the environment protection. No harmful gases or other chemicals rise from applying the Eta coating on a copper sheet, the whole process runs without any harmful emissions. For the production of coating only about 1 kWh of energy is needed for 1 m2, and it is just 1 kWh that will be produced by each square meter of this collector during the first hour of its operation. During its lifetime, Eta plus is able to produce some 20 000 kW/m2 of clean energy gained directly from solar radiation without any CO2 emissions. |
Flat solar collectors KPW1 - C20 AR
Antireflection solar glass represents the best in solar glasses of today. The picture shows the incident solar radiation and its restricted reflection outwards the collector thanks to the double sided antireflection layers. Solar permeability is 96%. |
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Instalation and Operational
Manual for Systems with KPW Collectors |
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| Model | KPW1 - C20AR | KPW2 - C23HTF |
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| Dimensions W x L x H | 1215 x 2140 x 110 mm | 1160 x 1930 x 90 mm |
| Collector surface | 2,61 m2 | 2,24 m2 |
| Connection dimensions | 2 x outer thread G 1/2“ | 2 x outer thread G 1/2“ |
| Absorber | copper / double parallel | copper / double parallel |
| Absorber surface | Eta plus | Eta plus |
| Insulation thickness | 6 cm | 4 cm |
| Max. working pressure | 10 bar | 10 bar |
| Fluid volume | 1,3 l | 1,1 l |
| Weight | 48 kg | 39 kg |
| Glass | 4 mm | 4 mm |
| solar antireflection | solar prismatic | |
| Code | 8081 | 8082 |
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KPW collector cross section |
Hydraulic connection of KPW collectors |
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Examples of solar sets with flat plate solar collectors
Examples of solar sets with flat plate solar collectors contain connection
diagrams for sets with flat plate collectors.