Due to the rear gold coating the heater rods emit an oriented radiation.

This means a reduction of scattered heat radiation resulting in lower requirements for heating energy.

Moreover, supported by the reflecting effect of stainless steel housing, it is not only possible to omit insulation asbestos but to omit all temperature insulation.

This design also provides a faster cool down of the apparatus after completion of a distillation procedure.

A very important aspect is the encased construction of the heater rods, which ensures protection against contact of live parts.

Thus, in contrast to constructions with exposed heating coils, Petrotest® distillation devices fulfill the VDE-safety requirements.

VDE = German Electro-Engineer's Association

DU 4 - Distillation Units

suitable due to the ordered glassware (not included) for:

• Petroleum Products at Atmospheric Pressure
• Industrial Aromatic Hydrocarbons
• Volatile Organic Liquids

Distillation Groups 0 ... 3 with a maximum test temperature up to +300 °C

Distillation Groups 0 ... 4 with a maximum test temperature up to +400 °C
                                            (such as diesel, bunkerfuel and solvents)

DU 4 - Distillation Units

available as:
- Economy Versions (Eco, EcoPlus, EcoThermo and EcoThermoPlus)
- Professional Versions (Pro and ProThermo)

to be composed of:
- Distillation Unit (Economy or Professional Version)
- Glas-Test-Kit