Product Overview
The Rexroth S 10 A05-10/450J3 (Material No. R901424189) is a direct-operated hydraulic check valve from the proven Rexroth S 10 series of modular sandwich plate valves. It is engineered to permit free flow in one direction while reliably blocking reverse flow, protecting downstream components from pressure surges and backflow. With a nominal size of NG10 (DIN 24340 / CETOP 3 interface), this valve is designed for sandwich plate mounting between a directional control valve and its subplate, making it an ideal building block for compact, modular hydraulic manifold assemblies. The “450” designation indicates a high-pressure rating of up to 450 bar, while the “J3” suffix defines the specific spring and cracking-pressure configuration, ensuring precise, repeatable opening characteristics in demanding industrial circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Check Valve (Modular Sandwich Plate Valve) |
| Model Designation | S 10 A05-10/450J3 |
| Material Number | R901424189 |
| Nominal Size | NG10 (DIN 24340 / CETOP 3) |
| Operating Pressure | Up to 450 bar (as per model code) |
| Function | Direct-operated, spring-loaded check valve; free flow in one direction, leak-tight shut-off in reverse |
| Mounting & Connection | Sandwich plate design, ISO 4401 / CETOP 3 subplate interface |
| Sealing | NBR (Buna-N) seals, standard mineral hydraulic oil compatible |
Engineering Features & Advantages
- Precision Performance: The spring-loaded poppet/seat design delivers fast, chatter-free closing and reliable leak-tight sealing, preventing reverse flow and protecting pumps, cylinders, and downstream valves from pressure spikes.
- High-Pressure Capability: Rated to 450 bar, the valve is suited for high-pressure industrial circuits where standard low-pressure check valves would fail.
- Modular Sandwich Construction: The NG10 sandwich plate format allows direct stacking between directional valves and subplates, minimizing piping, reducing leak points, and simplifying manifold design.
- Industrial Reliability: Hardened, precision-machined internal components ensure long service life and stable performance under continuous operation and severe industrial conditions.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth S 10 series valves and the specified material number R901424189, ensuring drop-in replacement without modification.
Typical Industrial Applications
This Rexroth S 10 A05-10/450J3 check valve is widely used in hydraulic power units and manifold blocks for plastic injection molding machines, metallurgical and steel mill presses, CNC machine tools,
PRODUCT IMAGES
Rexroth S 10 A05-10/450J3 / R901424189 Hydraulic Check Valve
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