Product Overview
The Danfoss 11213678 / 145250G3812BAAAAS is a high-performance proportional directional valve engineered for precise electro-hydraulic control of flow direction and magnitude in demanding industrial hydraulic systems. Manufactured by Danfoss, a global leader in mobile and industrial hydraulics, this valve utilizes a precision-machined spool and sleeve assembly actuated by a proportional solenoid, enabling infinitely variable flow control proportional to the electrical input signal. Unlike fixed-displacement directional valves, this proportional design allows for smooth acceleration and deceleration of actuators, reducing shock loads and improving system efficiency. The 145250G3812BAAAAS designation reflects a specific spool configuration, nominal flow rating, and solenoid voltage tailored for OEM and aftermarket integration. This valve serves as a critical control element in closed-loop and open-loop hydraulic circuits, delivering repeatable, hysteresis-minimized performance for applications requiring accurate position, velocity, or force control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Precision Proportional & Servo Valve) |
| Model Designation | Danfoss 11213678 / 145250G3812BAAAAS |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated, depending on port configuration) |
| Mounting & Connection | Standard ISO 4401 / CETOP Subplate Interface |
| Actuation Type | Proportional Solenoid with Integrated Position Feedback (LVDT) |
| Spool Configuration | 4-Way, 3-Position, Closed-Center (Tandem/All-Ports-Blocked) |
| Nominal Flow Rate | Up to 80 L/min (dependent on pressure differential) |
| Hysteresis | < 3% (typical, with closed-loop control) |
| Response Time | < 30 ms (step response, 0 to 100% signal) |
| Electrical Interface | Standard DIN 43650 / Hirschmann Connector |
| Filtration Requirement | ISO 4406 18/16/13 or better (10 µm absolute) |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (precision proportional & servo valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Danfoss standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
This valve serves as a critical control element in closed-loop and open-loop hydraulic circuits, delivering repeatable, hysteresis-minimized performance for applications requiring accurate position, velocity, or force control.
PRODUCT IMAGES
Danfoss 11213678 / 145250G3812BAAAAS Proportional Directional Valve
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- 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 Danfoss 11213678 / 145250G3812BAAAAS Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.