Product Overview
The Rexroth Z4S6-10/V (Material Number: R900489356) is a pilot operated check valve designed for leak-free load holding and controlled flow direction in hydraulic systems. Part of the Rexroth Z4S series, this valve is a sandwich plate (modular) type component that blocks flow in one direction and permits free flow in the opposite direction when a pilot pressure signal is applied. The Z4S6-10/V is engineered for integration into modular hydraulic manifolds, providing reliable isolation of actuators, prevention of load drift, and safe load holding in demanding industrial circuits. Its robust spool and seat design ensures minimal internal leakage and consistent pilot operation across a wide range of working pressures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Check Valve (Modular / Sandwich Plate) |
| Model Designation | Z4S6-10/V / R900489356 |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Nominal Size | NG10 (CETOP 5 / ISO 4401-05) |
| Mounting & Connection | Sandwich plate mounting per ISO 4401 / CETOP 5 interface |
| Pilot Ratio | Standard Rexroth pilot ratio (e.g., 1:4.5 or as per model variant) |
| Flow Direction | Blocked in one direction, free flow with pilot pressure in reverse |
| Sealing | NBR / FKM options depending on fluid and temperature |
Engineering Features & Advantages
- Precision Performance: Zero-leak poppet/seat design ensures reliable load holding and prevents actuator drift in vertical or clamping applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including ISO 4401-05 mounting pattern for drop-in modular integration.
- Pilot Operated Control: Allows controlled release of blocked flow via external pilot pressure, enabling safe and efficient sequencing in complex hydraulic circuits.
- Modular Design: Sandwich plate construction simplifies system assembly and reduces piping, minimizing leak points and installation time.
Typical Industrial Applications
This pilot operated check valve is widely used in heavy industrial scenarios such as plastic injection molding machines, metallurgical presses, construction and marine hydraulics, and CNC machine tools. It is particularly suited for circuits requiring load holding, pilot-controlled lowering, and prevention of reverse flow in modular manifold systems.
PRODUCT IMAGES
REXROTH Z4S6-10/V / R900489356 Pilot Operated Check 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 Z4S6-10/V / R900489356 Pilot Operated Check Valve. This Germany-made hydraulic component features a robust poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.