Product Overview
The Eaton 1DR30P10S is a direct-acting, screw-in cartridge pressure reducing valve from the Eaton 1DR series, engineered to maintain a stable, reduced outlet pressure regardless of fluctuations in the inlet (primary) pressure or downstream flow demand. As a pressure control valve, it operates on a balanced spool-and-spring principle: the outlet pressure acts on the spool face and opposes an adjustable spring force, modulating the spool position to throttle flow and hold the secondary circuit at the preset value. This cartridge-style design allows high-density integration into manifold blocks and custom hydraulic integrated circuits (HICs), making it a preferred solution for clamping circuits, pilot pressure supply lines, and secondary function control in demanding industrial hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Reducing Cartridge Valve (Pressure Control Valve) |
| Model Designation | 1DR30P10S |
| Series / Design | Eaton 1DR Series, Direct-Acting, Balanced Spool Cartridge |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated inlet) |
| Pressure Adjustment Range | Spring-controlled, factory-set range per model code (P10 designation) |
| Mounting & Connection | Screw-in cartridge, standard Eaton cavity interface |
| Actuation | Hydraulic (pressure-balanced spool with adjustable spring bias) |
| Sealing | Buna-N / Viton O-ring options with back-up rings |
Engineering Features & Advantages
- Precision Pressure Regulation: The balanced spool design delivers accurate, repeatable outlet pressure control with minimal hysteresis and fast response to load changes, protecting sensitive downstream actuators and instrumentation.
- Compact Cartridge Construction: Screw-in cartridge format minimizes manifold space requirements and reduces potential leak paths compared to line-mounted valve assemblies.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened spool and sleeve components for long service life and contamination tolerance.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Eaton OEM cavity and port standards for drop-in servicing.
Typical Industrial Applications
The Eaton 1DR30P10S is widely deployed in plastic injection molding machines for clamp and ejector circuit pressure control, metallurgical presses requiring stable secondary clamping forces, CNC machine tools and machining centers with hydraulic workholding, and general construction, marine, and mobile hydraulic manifolds where a reliable reduced pilot or function pressure must be maintained independent of main system pressure variations.
PRODUCT IMAGES

EATON 1DR30P10S Pressure Reducing Cartridge 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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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
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