PREXTHERM T3G N ASL
Superheated water generator with three flue passes
Superheated water generator with pressurised combustion and high energy efficiency, three flue gas passes. Ready for operation in combination with a jet burner on liquid or gas fuel. The arrangement and generous sizing of the combustion chamber with cooled end plate guarantee a low heating load and the possibility, when combined with a suitable burner, to ensure combustion with low NOx emissions.
Range consisting of 7 models, with useful heat outputs from 6,800 kW to 15,000 kW.
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Technical Data
• Standard design pressure: 6 or 8 bar.
• These modern-concept and high-efficiency generators have been designed and developed in compliance with European Directive 2014/68/UE (PED) and the most recent national and European standards on pressurised recipients.
• Combustion chamber consisting of a large furnace reinforced with omega joints to guarantee operation at low heating loads, with completely water-cooled reversing chamber.
• Tube bundle on the second and third flue gas pass, with high heat exchange surface.
• Suitable insulation of the boiler body using highdensity mineral wool protected by stainless steel plate limits heat loss to the surrounding environment. 79
• Large inspection doors both on the front, for flue gas reversal from the second to third pass, and at the rear for the smokebox.
• The water circuit can be inspected through a manhole at the top of the boiler and a hand opening ring at the bottom.
• Rear manhole for inspecting the furnace.
• The parts subject to pressure are all welded by qualified and IIS approved personnel, according to EN standards.
• Rear smokebox completely lined with high density mineral wool insulation.
CERTIFICATION
- CE mark in accordance with the following directives
- Pressure Equipment (2014/68/UE)
- Low Voltage (2014/35/UE)
- Electromagnetic Compatibility (2014/30/UE)
ACCESSORIES AVAILABLE ON REQUEST
• Control panel with PLC for specific communication needs to BMS or supervision systems.
• Pipe stub for instrument connection able to house all boiler control and safety instruments, available in different configurations.
• Economiser: a water-flue gas heat exchanger that increases efficiency by up to 4%. Its configuration and position are defined based on customer requirements.
• Economiser connection complete with return pipe extension, circulating pump with on-off valves and mechanical connection to the economiser performed directly at our facilities.
• System for up to 24 hours’ continuous unsupervised operation.
• System for up to 72 hours’ continuous unsupervised operation.
• Burner: brand and type chosen based on customer specifications.
• Ladder and walkway for safe access to the walkable platform on top of the boiler.
• Vertical flue connection.
• Pressurised expansion vessel.
• FAIL SAFE minimum level probes.
• PLC control system fitted with high performance Touch Panel colour operator interface. The interface can be used to manage operation of the Boiler-Burner-Central Heating System.
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Depliant