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Thermal Oil Boilers

Thermal Oil Boilers OH: helical coil, 3-pass design, up to 15,000 kW and 300–400 °C, low NOx, horizontal/vertical versions, operator-free, fully automated

Thermal Oil Boilers - OH Series

The OH series consists of thermal oil heaters built with concentric helical coils, with one or more principles, in a three-pass flue gas configuration.
The heated thermal oil can be used both as a direct heating medium and as a heat transfer fluid for the indirect production of steam, superheated water, etc.
Any type of commercially available burner can be installed on these heaters. 

For operating temperatures up to 300 °C (up to 400 °C on request)
Capacity range from 50 to 15,000 kW
Available in horizontal and vertical versions
Non-pressurized design, therefore exempt from licensed boiler operator
Possibility to produce steam or superheated water without the need of a licensed operator
Fully automatic control instrumentation
Also available with air preheater for higher efficiency

 

Operating diagrams - OH horizontal model (OH-H):

High efficiency version (OH-H-R):

Operating diagrams - OH vertical model (OH-V):

High efficiency version (OH-V-R):

Ultra Low NOx Thermal Oil Heaters
Available with capacities from 75 kW to 15,000 kW, with design temperatures up to 350 °C and pressure up to 10 bar.

Boiler Body Construction
Our heaters feature a multi-stage tube bundle heating body, made of ASTM A 106 gr.B high-quality steel, with flanged collectors equipped with temperature probe connections. The thick-walled cylindrical casing is reinforced and insulated with mineral rock wool, covered by polished aluminum sheeting, ensuring high thermal efficiency and durability.