Browse categories of Hydraulic separators Multifunction hydraulic separator Standard hydraulic separator The hydraulic separator is a device that makes the circuits (primary and secondary) connected to it independent, and can be used in hot or chilled water systems, also combining the deaeration and impurity separation functions. Multifunction hydraulic separator SEP4, Multifunction hydraulic separator. Standard hydraulic separator Hydraulic separator. Hydraulic separator. Hydraulic separator.