Duct Heaters

  • Daspass Duct Heaters
  • Duct Heaters with Flame Proof Junction Box

  • Applications
  • Open Coil Construction
Applications

Used in high temperature batteries, air conditioning (AHU – FCU), industrial drying ovens , load bank of generators, offices , heat treatment, institutes, buildings, retail stores, and more.

Available Types
  • Custom – Built (CB) Duct Heaters
  • Unitary Commercial Industrial Heaters
  • Remote Panel (RP) Duct Heaters
  • Stock – Line (SL) Duct Heaters
  • Flange Mount (FM) Duct Heaters
  • Round Mount (RM) Duct Heaters
  • Slip – Mount (SM) Duct Heaters
  • Bottom Mount (BM) Duct Heaters
  • Double Decker Mount (DDM) Duct Heaters

Characteristics
  • Capacity ranging from 3Kw to 1000 Kw
  • Operating Voltage of 110, 220, 230, 415, 600 (1-3 PH) AC/ 50-60 Hz

Features
  • Designed to suit specific customer requirements
  • Tailored for operations in temperature conditions of up to 950 F
  • Appropriate for use in relative humidity up to 90%

Construction

Incoloy – 800, Stainless Steel – 321 Sheathing of tubular components with / without finns. Elements of shapes U/M are mounted on a removable terminal plate by use of galvanized retainers. Mounting flange enables connection to the duct work. Individual elements are replaced easily or exchanged. For higher temperature applications, the case is built from heat resistant steel. A thermal cut-out is fitted to safeguard against overheating. Temperature control, a contractor and fan interlock mechanism, SSR, SCR and BMS compatibility are necessary for the safety auto thermostat cut-off . Optional additions include M / Explosion resistant covers (Flame Proof) and elements. Selected elements / Zero Clearance Construction by the method of calculated wire temperature.

Open Coil Construction

The heating elements shall be equipped with an open coil of 80% nickel and 20% chrome type resistance wire that is crimped into stainless steel. Ceramic bushings are inserted into supporting brackets to support terminals.

Duct Heaters For Explosion / Hazardous Areas :

For common wet, dusty, and outdoor applications, like use with roof-top air handling units and in washdown areas like food processing plants, clean, humid indoor swimming pools, casinos, or submarine boat applications, including shipboard use, Daspass offers a wide range of custom built electric duct heater designs.

  • Application
Application

Available in ratings as high as 500Kw, duct heaters with flame proof junction boxes are utilized for heating air in duct systems, central ventilation units, and a variety of industrial processes in areas where there is a periodic risk of explosions (class1, Zone 1 and Zone 2 Group IIA, IIB, T3). We can adapt the duct heater to a variety of application sectors, including shipbuilding, offshore, chemical, pharmaceutical, and oil industries. This is made possible by our flexible production process.

Features

Supply: 230-415V/1-3 PH/ AC/50 Hz è Temperature Class T3 (maximum 200° C) For use in areas in which the danger of è explosion are due to gases or flames è Degree of protection IP 64 è Can be installed horizontally or vertically Duct Mounting Power rating 1.0 Kw to 400 Kw F

Construction

Casing made from GI is offered in varied sizes. Duct heaters are manufactured to the level of protection IP64 compatible with EN6059. Stainless steel tubular heating elements with continuous finns are appropriate for black heat activities. The elements are connected to an alloy casted Terminal Box with powder coating paint of up to 500 microns.