Many devices like e.g. pressure gauges, pressure switches, accumulatorsetc. are integrated in hydraulic circuits by means of fittings. A wide rangeof fittings enables mounting of these devices in all kind of installation positions to hydraulic power packs and valves from HAWE. Reducers helpto combine them with other devices.There are two types of filters, which serve to protect hydraulic devices,preferably directional valves from coarse so-called vagabond, contamination which occur sometimes. The screen filters are to restrain coarseparticles whereas wire mesh filters should be used for hydraulic circuitswith rather low flow only.