PUre Series Products

Solar Collectors

pUre Performance

The pUre U Pipe Direct Flow System

Direct Flow is a very simple system that works in a similar fashion to a conventional flat plate collector but with the benefit of vacuum insulation.

The U-Pipe collectors have the same copper tube as a traditional heat pipe collector, but it instead bends around on itself at the bottom of the glass tube and returns directly into the double manifold. This enables the heat transfer fluid to travel through the tube for direct gain from solar radiation. As the heat transfer fluid is heated, it is pumped around the collector tubes and eventually passes through the secondary coil in the hot water storage cylinder. The U-Pipe Collectors require fewer tubes on the roof than heat pipe to reach the same peak efficiency levels.

European Solar Keymarked Direct Flow pUre series produces a staggering 758 Kwhm² output – 58mm x 1800 tubes

Can be installed vertically, horizontally & on flat walls- allowing flexibility of system design and installation.

Smaller footprint than Heat Pipe & Flat plate systems - Less visually intrusive

No parabolic mirror - No efficiency decrease during service lifetime.

Direct flow U pipe technology -More rapid heat transfer

Suitable for mains pressure water

Pre- assembled in 6 and 16 tube arrays - no roof assembly

Ideal for flat roof and Inclined up to 90°

Black anodised aluminium casing and frame- corrosion proof sleek single colour design

Operate up to 6 Bar - tested to 9 Bar

Dry tubes - Quick & easy replacement in situ without draining

Tested to withstand 25mm hailstones @ 23m/s

Outperform flat plates - Autumn , Winter & Spring

Operates at temperatures of -40°C

22mm male copper manifold fitting – “plug and play” design provides fast and simple installation.

Individually serial numbered - for commissioning and warranty

Unrivalled 15 Year Warranty on Tubes – Peace of mind

The main point here is that U-Pipe Collectors can be installed perfectly vertical or horizontal, allowing for a wider variety of installation options. It follows, therefore, that these collectors can be used where others cannot, such as on the top of a flat roof building where tilt mounting is not an option due to space limitations, as an overhang from buildings where there is no roof space to mount the solar collectors, or flush vertically on a wall.

PLEASE NOTE: WE CARRY BOTH 47 & 58mm x 1500 & 58mm x 1800 SPARE TUBES TO FIT MOST SYSTEMS.

MODEL	pUre 6	pUre 16
No. evacuated tubes	6	16
Outer tube diameter	58mm	58mm
Inner tube diameter	47mm	47mm
Tube length	1800	1800
Collector casing	Anodised Al	Profile
Gross area m²	0.96	2.39
Selective absorber coating	Cu-AL/SS/N-AIN	Cu-AL/SS/N-AIN
Net weight kg	21	56
Max. Operating pressure	6 bar	6 bar
Inlet/outlet connection	22mm male	22mm male
Heat tranfer fluid content	0.64 litres	1.7 litres
Stagnation Temperature	242°C	242°C
Absorptance	>0.94	>0.94
Glass material	Borosilicate	Glass 3.3
Yield forecast (Würzburg 3m²)	758 kWh/m²	758 kWh/m²