The directional spool valve bank type PSLF/PSVF consists of valve sections attachedvia manifolds. Type PSLF is designed for constant delivery pump systems (pressure/flow controller) whereas the type PSVF is for variable displacement pump systems. Bothare available in two sizes. They serve to control the direction of motion and provideinfinite control of the speed of motion of hydraulic consumers regardless of their load.Several consumers may be operated simultaneously and independently of each other.The main field of application is mobile hydraulics (e.g. boom controls of concretepumps etc.). Main advantage against type PSL/PSV is simplified servicing as individualvalve sections can be replaced easily. The main field of application is mobile hydraulics(e.g. crane controls etc.). These valve banks can be tailored to a specific application,requiring unequal max. consumer flows at port A and B as well as additional functionssuch as functional cut-off.