Omega Plus has been specifically designed to meet the requirements of multi-functional applications for a variety of fuels. The system provides an economical and robust twin wall insulated stainless steel chimney system offering high material specification, design, manufacturing quality, thermal performance and ease of installation. Omega Plus is suitable for negative draught conditions where the maximum continuous flue gas temperature does not exceed 450°C (550°C Intermittent) and is soot fire rated at 1000°C. Where used on wet or applications requiring a positive pressure capability, such as condensing appliances, the Omega Plus product can be fitted with an optional elastomer seal.
The elastomer seals are fitted at each joint and provide a positive pressure capability of up to 200Pa at a maximum flue gas temperature of 200°C, offering full condensate resistance. Omega Plus is available in six internal diameters, ranging from 100mm to 250mm, and consists of Lengths, Fittings and Support components. Each chimney element is fabricated with a fully welded 316L (1.4404:X2CrNiMo 17-12-2) stainless steel inner liner and a grade 304 (1.4301:X5CrNi 18-10) outer case. The 25mm annulus between the two walls is insulated with a high thermal performance auger injected mineral fibre to a mean density of 250Kg/m3. All flue gas carrying components are joined together with a simple push fit joint with the male end providing a slight taper to ensure ease of installation, while the 30mm of engagement offers a strong structural joint.
The joint must then be finished with a Locking Band, which is included with the component. Omega Plus is designed to be used both internally and externally as a fully supported structure, and must be installed in accordance with National and Local Building Regulations and Standards. Where Omega Plus is being used on a wet system such as a chimney system serving a high efficiency condensing boiler, adequate provision must be made for the removal of condensates from the system.
To encourage adequate drainage of condensates through the system, no sections of the system should run at an angle of less than 5° from the horizontal. The range includes specific components including a Condensate Collector, 95° Tee and 85° Elbow, all to enable the chimney system to be installed so that condensation will run back through the system to suitable drainage
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