Product Overview
The YUKEN MPW-01-4-40 is a modular pilot operated check valve designed for integration into ISO 4401 / CETOP 3 (NG6) modular valve assemblies. Manufactured by YUKEN, a globally recognized leader in hydraulic component engineering, this valve functions as a leak-free load-holding element within a stacked modular circuit. The MPW series allows free flow in one direction and blocks reverse flow until a pilot pressure signal is applied to the integral pilot piston, which mechanically unseats the poppet to permit controlled return flow. Its sandwich-style modular construction enables direct mounting between a directional control valve and a subplate or manifold, eliminating the need for separate piping and reducing potential leakage points in the system.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Modular Pilot Operated Check Valve (Sandwich / Stack Valve) |
| Model Designation | MPW-01-4-40 |
| Mounting Standard | ISO 4401 / CETOP 3 / NG6 Modular Interface |
| Operating Pressure | Up to 315 bar (working pressure, standard industrial grade) |
| Pilot Pressure Ratio | Standard pilot ratio (external pilot drain configuration) |
| Flow Direction | Free flow in one direction; pilot-assisted reverse flow |
| Sealing | Leak-free poppet seating for load holding |
| Mounting & Connection | Sandwich mounting between directional valve and subplate; standard ISO interface ports |
Engineering Features & Advantages
- Precision Performance: The pilot operated poppet design ensures zero internal leakage in the blocked direction, providing reliable load holding and preventing actuator drift in vertical or clamping applications.
- Modular Integration: The sandwich-style body mounts directly into an ISO 4401 / CETOP 3 stack, simplifying circuit design, reducing piping, and minimizing installation time and leak paths.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with hardened poppet and seat components for long service life and consistent pilot actuation.
- Direct Fit Replacement: Exact dimensional and functional compatibility with YUKEN MPW series modular valve assemblies and original OEM standards.
Typical Industrial Applications
This modular pilot operated check valve is commonly used in plastic injection molding machines for mold clamping and injection cylinder load holding, metallurgical presses requiring reliable load retention, CNC machine tools with vertical axis holding circuits, and general industrial hydraulic systems where leak-free blocking and pilot-controlled release are essential within a modular manifold assembly.
PRODUCT IMAGES
YUKEN MPW-01-4-40 Modular 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 YUKEN MPW-01-4-40 Pilot Operated Pressure Reducing Valve. This Japan-made hydraulic component features a precise pressure reducing function, delivering leak-free, reliable fluid control for heavy-duty industrial systems.