GENERAL CHARACTERISTICS
Their design and relative dimensioning are carefully designed by our technical department in order to be easily inserted in ventilation ducts, air channels, ovens or autoclaves.
Their so called air window (also called “clear span”), which can be made either “air tight” or “not air tight”, is directly crossed by an air or process gas flow.
Finned heating elements can be installed or, alternatively, non-finned smooth tubular elements (where the fluid to be heated contains suspended particles).
USE
The Air Duct electric heaters with standard connection head (IP41 or IP55 configuration level) for Safe area (non ATEX) applications are suitable for installations in all kinds of application requiring ventilated and/or still air heating treatments.
CERTIFIED QUALITY PRODUCT
The entire production cycle of standard air duct heaters (for safe use) with smooth or finned heating elements, is subject to the strictest dimensional checks and electric tests in compliance with our own standards set forth ISO 9001:2015 certified Corporate Quality System, and in full compliance with the CEI/EN requirements in force.
Among the main above mentioned electric tests, this type of products is carefully subject to insulation resistance tests, dielectric rigidity tests, ohmic value and leakage current tests.
TECHNICAL DATA
This heaters typology is generally manufactured with specific powers (W/cm²) depending on whether they are for heat still or ventilated air.
In presence of air flow high circulation, higher specific powers can be reached, ranging between 3 and 7 W/cm2.
In designing this type of products, our technical department makes use of leading computer programs in establishing the dimensioning, and of performances thermodynamic calculators, in order to optimize the performances, keeping into consideration the same air duct electric heating operating conditions.
Thanks to the manufacturing experience accumulated during 50 years of activity on the national and international market, in the world economy all the main industrial sectors, our technical and marketing departments always provides the best technical and product design solutions, in addition to the most suitable materials, for the customer’s specific application.
Since the proposal stage, we stand out compared to national and international competitors, in supplying all technical details and results of the thermodynamic calculation, which shows the proper air duct electric heater dimensioning.
PRODUCT DESIGN USEFUL DATA
An air duct electric heater, consisting both of finned or smooth heating elements, requires the knowledge of some essential technical data for its product design:
The air duct electric heaters can be manufactured in two types:
“Channel ” type (for those duct heaters becoming an integral part of the ventilation duct system)
“Drawer” type (for those duct heaters coupled to the plant system by a connecting flange)
In both cases, the heating elements installed inside are assembled through threaded bushes in order to facilitate the maintenance and damaged elements possible replacement.
The lower riveted door can be easily removed and grants an easy elements extraction / replacement.
Each heater is equipped with a safety device (if requested by the client) which limits the sheath’s temperature at an established value in case of heating elements surface overheating temperatures, suitable for preventing damages to the heater or to the system where it is installed. Based on the type of requested heat process, our technical department suggests the adoption of the most suitable thermocontrol device (control thermostat, safety thermostat, J or K thermocouple or PT100 thermistor).
Upon request, it is also possible to manufacture connection conveyors between the air channel and the air duct heater inlet and outlet sections.
 |
 |
 |
 |
STANDARD AIR DUCT ELECTRIC HEATERS INCLUDED IN OUR PRODUCT CATALOGUE
In presence of applications without particularly complicated heating exigences, when looking for products available for prompt / short delivery times, we have available a stock of standard smooth and finned heating elements of various power, sheathing and bending material (straight, U-shape or M-shape), as indicated in our product catalogue, for all still or circulating air heating applications, suitable for installation inside of metal frame casings (Carbon Steel or Stainless Steel) either for IP41 or IP55 finishing for prompt delivery.
GENERAL CHARACTERISTICS
The electric duct heaters are suitable for an easy installation inside the ventilation ducts and air conditioning systems for the direct heating of natural or forced convection air flow. Our production and finishing standards of these products stand out in terms of first quality materials that we select accurately within our production cycle, and in terms of reliability and quality/price ratio.
During 50 years of manufaturing, our corporate brand stood out in the production of electric air heating units and air duct electric heaters suitably designed for installation on air treatment machines and systems manufactured by the most renowned manufacturers of HVAC and AHU systems worldwide.
SOME EXAMPLES:
