Parker Hannifin F-400-B In-Line Flow Control Valve is a valve designed to regulate flow directly in a hydraulic line, allowing precise adjustment without external manifolds. It uses 1/4" NPT ports and supports a 5 GPM flow rating, suitable for small-diameter circuits that require controlled, inline flow. The F-400-B is used in fluid power systems where accurate flow modulation is needed to balance pressure and performance in compact plumbing layouts.
