Stat-Free®: The Guardian Angel for your System
Stat-Free® filter elements from HYDAC prevent electrostatic discharges during the filtration of hydraulic and lubrication oils
The trend to use high refined oils, which are free of zinc and ash, causes formally unknown problems during the filtration of these fluids because of electrostatic charge.
The physical phenomenon that is called “shearing of charge carrier” is responsible therefore. If the oil is low conductive, the charge carriers could not balance the charge some longer. In this way it comes to electrostatic charge. Engineers of the HYDAC FluidCareCenter could detect voltage peaks from more than 30.000 V in a few number of use cases with low lubricated oils (< 500pS/m).
As soon as a critical breakdown voltage has reached, it comes to discharges in the system. They are able to cause damage like burned and perforated filter elements, failures on the electronic system and even flash fires in the hydraulic tank. The oil age grows faster and it comes to debris like varnish into the oil. Thereby it’s possible, that valves, pistons and waves get blocked. Even the lifetime of filter elements can decrease dramatically.
HYDAC developed the Stat-Free® Technology to prevent damage to the system and the oil caused by electrostatic charge. Stat-Free® filter elements provide a secure operation of the system independently of the oils conductivity, because it inhibits electrostatic charge of the oil. The new element technology by HYDAC contributes significantly the functional safety and an undisturbed running of your hydraulic and lubrication systems.
