Product Overview
The Parker FM2DDSV (part number 4004444) is a modular flow control valve from Parker Hannifin’s FM series, engineered for precise regulation of actuator speed within ISO 4401 / CETOP 03 (NG6) modular hydraulic systems. Operating on the pressure-compensated, two-way flow control principle, the valve maintains a constant, preset flow rate to the controlled port regardless of variations in load pressure or system supply pressure, ensuring repeatable and stable actuator motion. Its sandwich-style modular construction allows direct stacking between a directional control valve and the subplate, eliminating the need for inline piping and simplifying system integration in industrial power units and machine manifolds.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Modular Flow Control Valve (Pressure-Compensated, Sandwich Type) |
| Model Designation | FM2DDSV / 4004444 |
| Manufacturer | Parker Hannifin |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated) |
| Nominal Flow Range | Metered flow adjustable via calibrated control spindle (FM2 size, up to approx. 30 L/min controlled flow) |
| Mounting & Connection | ISO 4401 / CETOP 03 (NG6) modular interface, sandwich mounting |
| Adjustment Type | Manual spindle adjustment with locknut (DDSV configuration) |
| Seal Material | NBR (standard); FKM available for elevated temperature service |
| Fluid Compatibility | Mineral-based hydraulic oils per DIN 51524 (HLP/HM), viscosity 10–500 cSt |
Engineering Features & Advantages
- Precision Performance: The pressure compensator integrated into the valve maintains the set flow rate independent of load and supply pressure fluctuations, delivering consistent actuator speed and eliminating drift in metering-critical circuits.
- Modular Sandwich Design: Direct stacking on ISO 4401 / CETOP 03 interfaces reduces piping, leak points, and installation time while allowing the valve to be added or replaced without disturbing the main manifold assembly.
- Fine Flow Adjustment: Calibrated control spindle with locking mechanism enables accurate, repeatable setting of the metered flow, with a tamper-resistant locknut to preserve the adjusted position under vibration.
- Industrial Reliability: Hardened, precision-machined spool and sleeve assembly built for continuous operation under severe industrial conditions and high cycle duty.
- Direct Fit Replacement: Precision-manufactured to original PARKER specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
Its sandwich-style modular construction allows direct stacking between a directional control valve and the subplate, eliminating the need for inline piping and simplifying system integration in industrial power units and machine manifolds.
PRODUCT IMAGES
PARKER FM2DDSV / 4004444 Modular Flow Control Valve
⚡ 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 FM2DDSV / 4004444 Solenoid Directional Control Valve. This US-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
