Many petroleum and synthetic fluids are available and more are being formulated. The highly technical formulations of the fluids with their various pros and cons…

Synthetic fluids on the whole have excellent fire resistant properties. Many of these fluids may be used at high temperatures, and some are quite expensive.…

Petroleum base oils are by far the most commonly used hydraulic fluid. Petroleum, a complex mixture of chiefly hydrocarbons, must be highly refined to produce…

Biodegradable working fluid is decomposed by microbes to CO2 and H2O, and, therefore, does not have a negative impact on the environment. Base oil is…

Whenever fire is present around hydraulic equipment, it cannot be over stated that operators and personnel working in the vicinity are always in danger from…

A Contami-Kit is portable and simple. It filters a sample of working fluid, and gathers particles on a membrane filter. The distribution and number of…

General working fluid, as new oil, contains moisture in the amount of 50-80 ppm (0.005-0.008 percent). But, the ratio increases with moisturized air injected by…

There are three reasons for working fluid to be replaced. (1) Change in quality and deterioration of working fluid (2) Dust or external elements mingled…

Kinematic viscosity (absolute viscosity divided by density) [m2/s] is used to determine the value of viscosity of industrial lubricants, such as working fluid. Practically, mm…

Working fluid with the equivalent viscosity of turbine oil in petroleum lubricant is selected. There are two types of turbine oil: turbine oil without additives…