Product Overview
The Rexroth S30A5.0 (Material Number: R900446709) is a high-performance hydraulic check valve engineered for precise flow control and leak-free load holding in demanding industrial hydraulic systems. Manufactured by Bosch Rexroth, a global leader in drive and control technology, this valve belongs to the S30 series of modular sandwich-style check valves. It functions by permitting free flow in one direction while positively blocking reverse flow, thereby protecting pumps, actuators, and downstream components from pressure surges and backflow conditions. With a nominal size of 5.0 (NG6 / CETOP 3 interface), the S30A5.0 is designed for direct sandwich mounting between directional control valves and subplates, making it an essential building block in modular hydraulic manifold assemblies.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Check Valve (Modular Sandwich / Flow Control Valve) |
| Model Designation | S30A5.0 / R900446709 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Cracking Pressure | Standard spring-loaded configuration (approx. 1.5 – 3 bar) |
| Mounting & Connection | Sandwich plate mounting per ISO 4401 / CETOP 3 interface |
| Sealing Material | NBR (Buna-N) standard; FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLPD per DIN 51524) |
Engineering Features & Advantages
- Precision Flow Control: The spring-loaded poppet/seated design ensures rapid, positive closure and reliable unidirectional flow blocking, preventing backflow and load drift in critical hydraulic circuits.
- Modular Sandwich Construction: Designed for direct stacking between directional valves and subplates, enabling compact manifold assemblies without additional piping or fittings.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened sealing surfaces and robust housing materials that resist wear and pressure fatigue.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification to existing manifold blocks.
- Low Pressure Drop: Optimized internal flow passages minimize pressure loss across the valve, improving overall system efficiency and reducing heat generation.
Typical Industrial Applications
The Rexroth S30A5.0 check valve is widely deployed in heavy industrial hydraulic systems, including plastic injection molding machines, metallurgical presses, CNC machine tool clamping circuits, construction and marine hydraulic manifolds, and general industrial power units where reliable load holding and backflow protection are essential. Its modular NG6 design makes it particularly suited for compact
PRODUCT IMAGES
Rexroth S30A5.0/ / R900446709 Hydraulic Check Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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Shop the genuine REXROTH S30A5.0/ / R900446709 Axial Piston Pump. This German-made hydraulic pump features a swashplate design, delivering reliable, high-pressure fluid power for heavy-duty industrial systems.