DelcoTerm® S AB
Details
Alkylbenzene-based synthetic heat transfer fluid for non-pressurised liquid-phase hot oil systems from -10°C to +300°C. Very low pour point (-51°C): ideal for outdoor plants and cold start-up.
Base Synthetic
Indicative operating temperature -10° / 300°
SYNTHETIC HEAT TRANSFER OIL FOR HIGH TEMPERATURES
DelcoTerm® S AB is a synthetic fluid consisting of a mixture of alkylbenzenes, suitable for use as a heat transfer fluid in the liquid phase only, in non-pressurised hot oil circuits, within a temperature range of -10°C to +300°C. Its low pour point and limited viscosity at low temperatures make it particularly suitable for circuits installed outdoors and exposed to low temperatures, where it facilitates start-up.
Like all aromatic synthetic fluids, it has good resistance to thermal cracking but lower resistance to oxidation. DelcoTerm® S AB can therefore also operate in non-pressurised circuits, but it must be protected from atmospheric oxygen by an efficient inerting system for the expansion tank atmosphere, by the D.E.L.CO. reverse expansion drum or by any other effective protection system. Its relatively high flash and autoignition points provide safety against the risks of using a fluid at high temperature.
DelcoTerm® S AB is thermally stable when operating below 300°C; however, it can exceptionally be used up to bulk temperatures of 315°C. At high temperatures its molecules may undergo cracking, forming both low-boiling compounds, which can be removed by vacuum degassing, and high-boiling compounds, which remain dissolved in the fluid.
Like any other aromatic synthetic product, DelcoTerm® S AB is not collected by the Italian Used Oils Consortium: at the end of its service life it must be disposed of in accordance with local regulations by specialised and authorised companies.
MAIN CHARACTERISTICS
- Kinematic viscosity at 40°C: 21 cSt
- Pour point: -51°C
- Flash point (PM): 180°C
- Autoignition point: 360°C
- Maximum bulk temperature: 300°C
- Maximum film temperature: 335°C
