Product Overview
The Rexroth DA6VA2A50/200FSM (Material Number R901224218) is a pilot-operated pressure unloading valve from the proven DA series, engineered for precise control of system pressure in industrial hydraulic circuits. As a pressure control valve, it functions by automatically unloading pump delivery flow to the tank once a preset pressure threshold is reached, thereby limiting system pressure, reducing power consumption, and minimizing heat generation during idle or holding phases. The valve features a balanced spool design with a pilot stage that ensures accurate and repeatable pressure setting, while the robust housing and precision-machined internal components deliver stable performance even under demanding continuous duty cycles. With its 50 bar nominal pressure adjustment range and 200 bar maximum working pressure rating, this model is ideally suited for integration into manifold blocks or as a direct inline pressure control solution in complex hydraulic power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve (Pressure Unloading Valve) |
| Model Designation | DA6VA2A50/200FSM / R901224218 |
| Operating Pressure | Up to 200 bar (maximum working pressure); adjustment range 50 bar |
| Mounting & Connection | Standard ISO / Manufacturer Interface (subplate mounting, port pattern per Rexroth DA series) |
| Actuation Type | Pilot-operated, spring-loaded adjustment |
| Adjustment Element | Manual adjustment with locknut (FSM configuration) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP) per DIN 51524 |
| Seal Material | NBR (standard industrial) |
Engineering Features & Advantages
- Precision Pressure Control: The pilot-operated design with balanced spool ensures accurate and repeatable pressure setting, minimizing pressure overshoot and maintaining stable system conditions during unloading transitions.
- Energy-Efficient Unloading: Automatically diverts pump flow to tank at preset pressure, reducing power consumption and heat generation during idle periods, extending the service life of the entire hydraulic system.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with a robust housing and wear-resistant internal components, ensuring long maintenance intervals and dependable performance.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, allowing drop-in replacement without modification to existing manifolds or piping.
- Compact Manifold Design: Subplate mounting pattern enables space-saving integration into hydraulic power units and custom manifold blocks.
Typical Industrial Applications
This pressure unloading valve is commonly deployed in plastic injection molding machines where precise pressure holding and energy-efficient idle phases are critical; metallurgical presses and forging equipment requiring reliable pressure limitation; construction and marine hydraulic systems operating under variable load conditions; and CNC machine tools where stable hydraulic pressure directly influences machining accuracy and
PRODUCT IMAGES
REXROTH DA6VA2A50/200FSM / R901224218 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DA6VA2A50/200FSM / R901224218 Pressure Relief Valve. This Germany-made hydraulic component features a direct-acting poppet design, delivering leak-free, reliable pressure control for heavy-duty industrial systems.