Product Overview
The Rexroth DA6VA2A50/100FSM (Material Number: R901224217) is a pilot-operated pressure unloading valve from the proven DA series, engineered for precise control of system pressure in industrial hydraulic circuits. This valve functions as a pressure control component that automatically unloads the pump to a low standby pressure once a preset system pressure is achieved, thereby reducing energy consumption, minimizing heat generation, and extending the service life of downstream components. With a nominal size of 6 and a pressure rating of up to 100 bar, the DA6VA2A50/100FSM is designed for reliable, repeatable performance in demanding hydraulic power units and accumulator charging systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Pressure Unloading Valve) |
| Model Designation | DA6VA2A50/100FSM |
| Material Number | R901224217 |
| Nominal Size | NG6 (DIN 24340 / ISO 4401 size 6) |
| Operating Pressure | Up to 100 bar (pressure setting range per model code) |
| Actuation Type | Pilot-operated, pressure-controlled unloading function |
| Mounting & Connection | Subplate mounting, ISO 4401-03 / CETOP 3 interface |
| Adjustment | Adjustable pressure setting via set screw (FSM adjustment style) |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP per DIN 51524) |
Engineering Features & Advantages
- Precision Pressure Control: Pilot-operated spool design delivers accurate, repeatable unloading and pressure regulation, ensuring stable system behavior across varying load conditions.
- Energy-Efficient Unloading: Automatically diverts pump flow to tank at low pressure once the set point is reached, reducing power consumption and thermal load in continuous-duty systems.
- Robust Spool & Seat Construction: Hardened, precision-machined internal components resist wear and contamination, maintaining consistent performance over extended service intervals.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a proven Rexroth valve body design that withstands pressure spikes and cyclic loading.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including ISO 4401-03 mounting pattern for drop-in installation.
Typical Industrial Applications
The Rexroth DA6VA2A50/100FSM pressure unloading valve is widely deployed in hydraulic power units and
PRODUCT IMAGES


REXROTH DA6VA2A50/100FSM / R901224217 Pressure Unloading 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 REXROTH DA6VA2A50/100FSM / R901224217 Solenoid Operated Directional Spool Valve. This Germany-made 24V DC hydraulic component features a reliable spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.