PREXTHERM T3G F ASL
Superheated water boiler with three effective 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 14 models with rated outputs from 1,200 to 9,000 kW.
Maximum operating pressure 6 bars or 8 bars
Assembly temperature: 140°C
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 high-density mineral wool protected by stainless steel plate limits heat loss to the surrounding environment.
The door is insulated on the inside with a suitable layer of refractory concrete and covers the entire heated surface of the tube plate.
Front door with reversible opening (right and left) and innovative closing system with micrometric adjustment on the boiler front plate.
The parts subject to pressure are all welded by qualified and IIS approved personnel, according to EN standards.
The water circuit can be inspected through a manhole at the top of the boiler and a hand opening ring at the bottom.
Maintenance guaranteed by easy access to the furnace and the tube bundle through the door, the removable smokebox and the inspection door on the boiler body.
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.
Perforated burner plate based on customer specifications.
Ladder and walkway for safe access to the walkable platform on top of the boiler.
Rear smokebox completely lined with high density mineral wool insulation.
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.