Product Overview
The Eaton 10RD30-P-40S-SP130 is a direct acting relief cartridge valve from Eaton’s 10RD30 series, engineered for precise pressure control in demanding hydraulic circuits. As a pressure control valve, it functions by directly sensing inlet pressure against an adjustable spring force; when system pressure exceeds the set cracking point, the poppet lifts off its seat to divert flow to tank, thereby limiting circuit pressure and protecting downstream components. The “P” designation indicates a poppet-type configuration, while “40S” denotes the standard spring range and “SP130” specifies a factory pressure setting of approximately 130 bar. This cartridge-style valve is designed for manifold or cavity mounting, offering fast response, low leakage, and repeatable pressure regulation in continuous-duty industrial hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Direct Acting Relief Cartridge Valve (Pressure Control) |
| Model Designation | 10RD30-P-40S-SP130 |
| Manufacturer | Eaton (Vickers) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar; factory set at approx. 130 bar / SP130) |
| Actuation Type | Direct acting, spring-biased poppet |
| Mounting & Connection | Standard ISO / Manufacturer Cartridge Cavity Interface |
| Adjustment | Fixed / factory-set pressure setting (SP130) |
Engineering Features & Advantages
- Precision Performance: Direct acting poppet design delivers fast, accurate pressure relief response with minimal hysteresis and reliable repeatability across the operating range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components that resist wear and extend service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM cartridge cavity standards, enabling drop-in replacement without manifold modification.
- Low Internal Leakage: Precision-lapped poppet and seat geometry minimizes leakage for stable pressure holding and reduced system heat generation.
Typical Industrial Applications
The Eaton 10RD30-P-40S-SP130 relief cartridge valve is widely deployed in plastic injection molding machines, metallurgical presses, construction and marine hydraulic systems, and CNC machine tools where reliable overpressure protection and precise pressure limiting are essential to system safety and performance.
PRODUCT IMAGES



Eaton 10RD30-P-40S-SP130 Direct Acting Relief Cartridge Valve
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