Castrol Anvol SWX 46 is a synthetic polyol ester type hydraulic fluid for use in applications that require a high degree of lubricity and fire resistance according to Factory Mutual category 1. Formulated to work in high pressure hydraulic systems up to 7500 psi, Castrol Anvol SWX 46 provides geared pumps with protection against wear equivalent to that of mineral oils. The fluid has a naturally high viscosity index and is shear stable, a significant advantage in modern sensitive equipment. It is designed for superior system reliability through a reduced tendency to form varnish or sludge in valves, pipes and reservoirs. It also provides greater resistance to water by offering high levels of corrosion protection and ease of water-oil separation.