INDUSTRIAL DN-FLANGED HEATERS

Industrial DN-flanged heaters

Heating and Brazing Solutions Loval Engineering®

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MATERIALS: Unalloyed steelEN 1.0034

Stainless steelsEN 1.4301EN 1.4404EN 1.4547EN 1.4876 EN 2.4858

Loval designs and produces a wide range of industrial DN-flanged heaters for air, gases and steam. Heaters are optimized according to customer specifications. Loval heaters can include vessel, terminal box, fixing devices, connection and insulation. Installation of DN-flanged heaters is therefore very easy and quick.

Dimensioning is based on required power and flow rate. Materials can be chosen from unalloyed and alloyed steels. Temperature control and over temperature cut-outs can be added to the heaters.

Typical applications include engine pre-heaters, industrial process heaters and tempering units.

LOVAL OY - Linnunrata 4 07900 Loviisa - Finland - Tel + 358 19 517 31 www.loval.fi

APPROVALS:

Industrial DN-flanged heaters

INDUSTRIAL DN-FLANGED HEATERS ADVANTAGES

• Excellent heat transfer properties • Pressure equipment directive (PED) approved construction • Dimensioning and heat transfer calculations by Loval Engineering® • Tailored electrical control • Technical documentations • Decades of experience

Specialized in VACUUM BRAZING

Vacuum brazing process is a unique method to join parts. During the brazing process the braze material melts and flows into a joint by capillary force, creating a gas-tight seal. Brazing temperatures are between 900 – 1200 degrees under vacuum of one millionth of atmospheric pressure (<0,001 mbar). Vacuum brazing does not require any flux or other additives and therefore no cleaning or passivating processes are required.

Loval

BENEFITS

- Outstanding corrosion resistance- No need for post-process cleaning treatment- The most effective process to join comlex structures- Uniform heat treatment without thermal stress

Vacuum treatment ensures that brazed units do not react with the ambient gases, ensuring high quality seam. Brazing operation can be carried out not only in vacuum but also in shield gas atmosphere. All Loval vacuum furnaces can use nitrogen and the latest one also argon and hydrogen as shield gas. The latest brazing method at Loval is diffusion brazing which allows joining of components without filler metals.

TYPICAL APPLICATIONS • Indudstrial engine fuel pre-heaters • Industrial process heaters • Tempering units

LOVAL OY - Linnunrata 4 07900 Loviisa - Finland - Tel + 358 19 517 31 www.loval.fi