Product Overview
The Parker FM4DDFVHT is a modular flow control valve from Parker Hannifin’s FM series, engineered for precise regulation of hydraulic flow rates within manifold-mounted industrial circuits. Operating on a pressure-compensated flow control principle, this valve maintains a stable, preset flow output independent of load-induced pressure fluctuations, ensuring consistent actuator speed and repeatable cycle times. As a modular (sandwich-style) component, it is designed for direct mounting between a directional control valve and its subplate interface, eliminating the need for inline piping and reducing potential leak points. The FM4DDFVHT is a two-way, pressure-compensated flow regulator with a reverse free-flow check function, making it a critical element in systems requiring accurate velocity control of cylinders and motors.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Modular Flow Control Valve (Pressure-Compensated) |
| Model Designation | FM4DDFVHT |
| Series | Parker FM Series Modular Valve |
| Function | Two-Way Flow Regulation with Reverse Free-Flow Check |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Flow Adjustment | Manual Adjustment via Lockable Set Screw / Knob |
| Mounting & Connection | Modular Sandwich Mounting per ISO 4401 / CETOP (NG6 / NG10 Interface) |
| Seal Material | NBR (Buna-N) Standard; FKM Available on Request |
| Fluid Compatibility | Mineral-Based Hydraulic Oils (HLP / HM per ISO 6743-4) |
Engineering Features & Advantages
- Pressure-Compensated Precision: The integrated pressure compensator maintains a constant flow rate regardless of variations in load pressure, delivering accurate and repeatable actuator speeds across the full operating range.
- Reverse Free-Flow Check: A built-in check valve allows unrestricted reverse flow, ensuring rapid retraction or return strokes without throttling losses, improving overall system efficiency.
- Modular Sandwich Design: Direct manifold mounting between the directional valve and subplate reduces piping complexity, minimizes pressure drops, and simplifies system assembly and maintenance.
- Industrial Reliability: Constructed with hardened, precision-ground spool and sleeve components for long service life and consistent performance under continuous industrial duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with Parker FM series modular valve standards, ensuring drop-in interchangeability with original OEM components.
Typical Industrial Applications
The Parker
PRODUCT IMAGES
Parker FM4DDFVHT Modular Flow Control Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Parker FM4DDFVHT Solenoid Directional Control Valve. This USA-made 24V DC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.