The orifice inserts type EB are part of the flow valves, whereas the restrictor check valves type BE and BC are a combination of a flow and check valve. They are used to limit the flow during switching operations of directional valves (flow restriction preventing too rapid discharging of accumulators). The restrictor check valves type BC and BE, feature an orifice or slot design. They enable free flow in direction F --> B and throttle the flow in the reverse direction. Type BC can be installed in both flow directions. The incorporated check valve is spring loaded. The mounting hole may be shaped with a simple drill (point angle 118°). The orifice inserts, type EB, can be installed in the P-ports of indiv. subplate mounted directional valves.