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Reverse flame tube boilers - PRN/D

PRN/D type steam boilers are suitable for all traditional oil and gaseous fuels.

Capacity :  100 to 2.500 kg/h

Design Pressure : 0,5 to 16 bar

ARTEMIS Industry focuses on the particularity of each client’s needs. Therefore, the Company has a great flexibility to produce products that differ a lot from those of the mass production. Many features such as:

  • heating surface
  • working pressure

can be adjusted to the special needs of each customer, especially Industries and big Public Buildings.

ARTEMIS stands for quality, long life and reliability.

PRN/D boilers are constructed and tested in accordance with the Directive 97/23/CE relative to the pressure equipment (PED)                                                        

Special features

  • Wide furnace with wet back
  • Large water and steam volume
  • Dry saturated steam
  • Easy maintenance facilitated from :
    • The big hinged front door
    • The bolted smoke chamber, equipped with two cleaning openings, totally dismountable
  • A bolted flue coupling can be adjusted to the welded duct on the back of the smoke box
  • Insulation made of high density mineral wool, protected by aluminium steel sheet
  • Low fuel consumption
  • High efficiency up to 92% .The use of an economizer can increase the boiler efficiency even more than up to 97%
  • Durability

Standard equipment

  • Feed water control with probes
  • Low level probe
  • Main Steam valve bellow sealed type
  • Full stroke safety valve spring type
  • Angular feed water valve bellow sealed type
  • Inox non return disk valve for the water feed inlet
  • Working pressure limiter(s)
  • Safety pressure limiter
  • Steam valve bellow sealed type before the bottom blow down valve
  • Manual blow down valve
  • Reflex level indicator
  • Special set of valves for the water level gauge which close immediately automatically in case the sight glass brakes.  
  • 3-way valve for the water level gauge for drainage and water sample
  • Dearation valve for the boiler  
  • Glykerin manometer 0-40 bar for the water inlet pressure after the pump
  • Pressure gauge with syphon and stop valve

Optional equipment on demand

  • A multi level electronic electrode 4-20 mA for automatic water level control
  • Self checked low level safety electrode according to TRD 604/24 h for 24 hour operation without supervision.  
  • Automatic surface blow down valve according to TRD 604/24 h for 24 hour operation without supervision.  
  • Automatic pneumatic bottom blow down valve.
  • Inverter on the feed water pump for the full modulation of the water that goes in the boiler.
  • Extra reflex level indicator
  • Extra safety valve

Appart the above mentioned armatures of the boiler, ARTEMIS can also provide

Peripherical equipment of a boiler- house :


Feed water tank for partial or full  dearation

Water treatment system

Blow down vessel


Feed water pump module

Steam distributor

Pre-assembled components for steam lines

Oil preheater

Domestic Hot Water (DHW) heater  

Application Field

Food Processing

Health Care


Industrial Process Applications

cms/images/large/albumID_297_2_2_2011_20217446.jpg cms/images/large/albumID_297_0_3_2011_1891267.jpg cms/images/large/albumID_297_0_3_2011_18837779.jpg cms/images/large/albumID_297_2_2_2011_202126895.jpg cms/images/large/albumID_297_2_1_2011_18637828.jpg cms/images/large/albumID_297_2_3_2011_10502843.jpg cms/images/large/albumID_297_2_2_2011_202129678.jpg cms/images/large/albumID_297_2_3_2011_105019588.jpg cms/images/large/albumID_297_2_3_2011_105023879.jpg
  • Steam boiler, type PRN/D 2000
  • Front view of a PRN/D type steam boiler
  • Steam boiler PRN/D type with a pre-mounted economizer
  • Steam boiler type PRN/D, inside a production plant
  • Detail: reverse chamber in the front door of a PRN/D type steam boiler
  • Detail: reverse chamber in the front door of a PRN/D type steam boiler
  • Detail: the position of the handhole on the rear plate of the boiler enables a full inspection of the boiler inside.
  • Detail: Wide and sturdy openinigs (water side)
  • Detail: Internal insulation of the back smoke chamber with ceramic fiber wool of high density.
cms/images/small/albumID_297_2_2_2011_20217446.jpg cms/images/small/albumID_297_0_3_2011_1891267.jpg cms/images/small/albumID_297_0_3_2011_18837779.jpg cms/images/small/albumID_297_2_2_2011_202126895.jpg cms/images/small/albumID_297_2_1_2011_18637828.jpg cms/images/small/albumID_297_2_3_2011_10502843.jpg cms/images/small/albumID_297_2_2_2011_202129678.jpg cms/images/small/albumID_297_2_3_2011_105019588.jpg cms/images/small/albumID_297_2_3_2011_105023879.jpg