ELICOIL NO

  • Diathermic oil heater featuring a helical tube bundle with one or more turns and three effective flue passes. Suitable for both liquid and gaseous fuels.
  • 15 sizes with heat outputs from 117 to 5814 kW and steam production, in combination with EVA series evaporator, from 166 to 8300 kg/h.
  • Standard design pressure 10 bar.g
  • Operating temperatures
    • 300°C for mineral oils
    • 350°C for synthetic oils
    • Temperature difference between oil inlet and outlet of around 40°C.
  • Upon request boilers can be developed with different temperature values and differences from those indicated above. Construction with two concentric rings inside a gas tight cylindrical sheet metal body. The first “ring” represents the furnace that the flame extends along; the second “ring” is the start of a three flue pass circuit that optimises use of the entire heat exchange surface, making it advantageous to use low NOx burners.
  • Tube bundle made from seamless carbon steel.
  • Access to the furnace is available through a burner door hinged to the boiler that can be opened from the right or the left; the door is lined on the inside with a suitably thick layer of refractory concrete and features a flame inspection opening and burner anchor plate.
  • The rear smokebox is bolted to the boiler, and lined on the inside with insulating concrete, and is fitted with cleanout door and attachment for the flue connection.
  • The boiler body is lined by a suitable layer of high density rock wool, protected by stainless steel plate (AISI 430); this reduces heat loss and improves overall efficiency.
  • Certification
    • CE mark in accordance with the following directives
    • Pressure Equipment Directive 97/23/EC (PED)
    • Low Voltage (2006/95 EEC)
    • Electromagnetic Compatibility (2004/108 EEC)