In steam and gas turbine lubrication and hydraulic systems phosphate ester fluids (PEF) are widely used due to their fire-resistance and temperature stability. The PEFs are costly but on the other hand they can remain in use for more than a decade if the fluid condition is duly monitored and maintained.
An efficient oil/fluid condition monitoring method is to monitor the fluid color to determine the need for purification of the fluid. The oil/fluid color darkens in use due to oxidation, particles and excess water content in the fluid. Crucial is also to catch sudden changes in the oil/fluid color and having the ability to react to the changes in time to avoid costly damages and down time.
The Kytola OILCOL on-line oil color analyzer is a cost effective solution for continuous monitoring of the oil color trend and it gives the ability to fast reaction should any abnormal oil color changes occur.