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1. Domestic solar hot water heaters
2. Continuously improved design
3. Professional manufacturer
domestic solar hot water heaters, solar collector, evacuated tube & heat pipe, solar renewable energy


Product Description
Apricus ETC range of evacuated tube solar collectors are suitable for both residential and commercial applications. The design of the ETC solar collector is a culmination of nearly 10 years of feedback from installers and solar professional all over the world and aims to meet their requirements.
key features:
• Modular “plug ‘n’ play” design (Manifold, frame and tubes in separate packages)
• Lightweight manifold design
• Choice of Stainless Steel or Anodized Aluminium mounting frames
• Extremely reliable header design due to only 6 brazing joints
• Contoured header for turbulent flow even at low flow-rates
• All glass wool insulation for high temperature stability
• Patented heat transfer fin design for optimal heat transfer
• Long term stability under extreme conditions
• Extreme cold (freeze protected heat pipes)
• Coastal regions (salt spray)
• Harsh UV radiation (UV stabilized components)
• High Winds (up to category C cyclone)
• Snow loading
| Apricus Solar Collector Specifications | |
| Components | Material & Specifications |
| Evacuated Tubes | Material: Borosilicate 3.3 Tube style: Twin wall all glass Dimensions: Φ58mm outer tube; Φ47mm inner tube; 1.8m length, 1.8mm outer tube wall thickness |
| Solar Absorb Coating | Material: Graded AL/N on AL Absorptance: >92% (AM1.5); Emittance: <8% (80oC) Vacuum: P<5x10-3 Pa; Heat loss: <0.8W/ (m2 oC) |
| Heat Pipes | Material: High purity “oxygen free” copper (ASTM: C10200, DIN: OF-Cu) Past European freezing resistance test |
| Copper Header Pipe | Material: Copper (ASTM: C1100, DIN: ECu-58); Potable water rated. Brazing rod: BAg45CuZn Maximum pressure: 800kPa Connection Options: 7/8” OD copper (US size), 19.1mm OD flared nut (Australia) or 22mm OD copper (Europe) |
| Heat Transfer Fins | Material: High purity aluminium |
| Rubber Components | Material: HTV Silicone Rubber (UV stabilised) |
| Mounting Frame | Material: using 3003 Aluminium Alloy |
| Tube Clips | Material: 301 Stainless Steel |
| Fasteners | Material: 304 Stainless Steel |
| Manifold Casing | Material: 3003 Aluminium with PVDF coating, whose longevity can be over 25 years. |
| Manifold Insulation | Material: Glass Wool (K = 0.043W/mK) Thickness: Average >50mm |
How it Works
Construction
The ETC solar collector comprises three main parts:
Evacuated Tube (ET)
Absorbs solar energy and converts it to usable heat. Vacuum between the two glass layers insulates against heat loss.
Heat Pipe (HP)
Copper vacuum pipe that transfers the heat from within the ET up to the manifold.
Manifold
Insulated box containing the copper header pipe. The header is pair of contoured copper pipes with dry connect sockets that the heat pipes plug into.
Mounting Frame
Strong and easy to install with various options to match different mounting methods.
Operation
Step 1: The absorber coating on the inner glass tube absorbs sunlight and converts it into heat.
Step 2: Steam forms inside heat pipe which transfers heat rapidly up to the manifold.
Step 3: A pump circulates water or heat transfer fluid through the header pipe, carrying heat back to the
storage tank. Gradually throughout the day the tank is heated up.

How to order (please refer to Solar Collector Component Group):
*1 x 20 tube manifold kit
Part #APSE-20-KIT
*2 x boxes of evacuated tubes
Part #BOX ET/HP-10/10
*Replacement tube packages available
Part #BOX ET/HP-12/10
Part #BOX ET-10
Manufactured in line with ISO9001: 2000 quality management requirements, and meeting SRCC, AS2712, CSA and, Solarkeymark requirements. Apricus collectors are a quality choice for your home or commercial application.
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