A conventional directional valve opens a fixed area to flow, so when the load on a boom cylinder rises, the cylinder slows and the operator compensates with the joystick. The Fluitronics APV 10 puts a pressure compensator under each spool section, decoupling actuator speed from load and holding it to the command signal.

Why does section count matter on a mobile valve?

Excavators, cranes and forestry machines drive slew rings, booms, sticks and buckets from one pump. The APV 10 accepts up to 15 parallel sections, each adding a spool, a connection block and its safety functions such as shock and suction valves or load-holding, all fed from one inlet plate matched to the pump control, LS or fixed displacement. Compared with the plate-body layout, the sectional build lets a service tech unscrew one section without draining the block, and the same spools and mounting options carry over to the subplate version.

What does the electrical control add over manual levers?

Each section takes manual, hydraulic or proportional electric actuation on the main spool. The proportional pilot runs on 12 or 24 VDC through AMP Junior Power Timer or Deutsch connectors, with 100 Hz dither recommended and hysteresis held to 4 percent, IP65 protected for the wash-down realities of mobile machinery. Against the larger APV 16 and APV 22 sizes that reach 420 bar, the APV 10 covers the flow band up to 80 L/min per section where most auxiliary functions live, and against non-compensated monoblock valves it costs more per section but returns it in cycle speed that no longer drops when two functions work together. The same AMCA platform extends into the Fluitronics M series for plate-only builds.