Physical Characteristics

Abstract

Shell Heat Transfer Oil S2 is based on carefully selected highly refined mineral oils and resists oil cracking, oxidation and thickening. This provides extended oil life, provided efficient fluid heating and good pump circulation is ensured, such that film temperatures on the heater surface do not exceed the limits below. · System efficiency Low viscosity enables excellent fluidity and heat transfer over a wide temperature range. Shell Heat Transfer Oil S2 also has a low vapour pressure so resists cracking. This minimises the formation of volatile decomposition products; these would require recovery via expansion chamber and condensate collector. · Wear protection Shell Heat Transfer Oil S2 is non-corrosive and has high solvency-this reduces deposit formation by holding oxidation products in solution and keeping internal surfaces of heat exchangers clean. · Main Applications Enclosed circulated heat transfer systems for industrial applications such as process industry, chemical plants, textile producers etc. and in household equipment such as oil filled radiators. · Shell Heat Transfer Oil S2 can be used in high temperature continuous heat transfer equipment with the following application limits: · Max. film temperature : 320ºC · Max. bulk temperature : 300ºC · Specifications, Approvals & Recommendations Classified as ISO 6743-12 Family Q · Meets DIN 51522 requirements · For a full listing of equipment approvals and recommendations, please consult your local Shell Technical Helpdesk. Properties Method Shell Heat Transfer Oil S2 Density @20 0 C kg/m 3 ISO 12185 857 Flash Point (PMCC) 0 C ISO 2719 208 Flash Point (COC) 0 C ISO 2592 220 Pour Point 0 C ISO 3016-12 Kinematic Viscosity @40 0 C mm 2 /s ISO 3104 29 Kinematic Viscosity @100 0 C mm 2 /s ISO 3104 5.1 Kinematic Viscosity @200 0 C mm 2 /s ISO 3104 1.4 Initial Boiling Point 0 C ASTM D2887 >330 Autoignition temperature 0 C DIN 51794 332 Neutralisation Value mg KOH/g ASTM D974 <0.2 Ash (Oxide) % m/m ISO 6245 <0.01