PREXTHERM T3G N ASH
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 combustionchamber 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 6,000 kW to 15,000 kW.
Maximum operating pressure 12 bar or 15 bar; higher pressures on request.
Assembly temperature: 191.7°C (12 bar ver.); 200°C (15 bar vers.).
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.
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.
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.
Walkable top platform.
- 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 5%. 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.
B.E.C.S. (Boiler Electronic Configurable System): the B.E.C.S. control system consists of a PLC fitted with high performance Touch Panel colour operator interface. The interface can be used to manage operation of the Boiler-Burner-Central Heating System.