Product Overview
The Parker R4V03-533P1PN4MAA130 is a pilot operated pressure relief valve from Parker’s R4V series, engineered to protect hydraulic systems from excessive pressure while maintaining precise, stable control of system pressure levels. As a two-stage pilot operated design, the valve combines a balanced main spool with a sensitive pilot stage, allowing it to deliver accurate pressure limitation and smooth unloading characteristics even at high flow rates. The R4V series is a globally recognized platform used across industrial and mobile hydraulics, and this model is configured for reliable continuous duty in demanding circuits where overpressure protection and pressure regulation are critical to system safety and component longevity.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | R4V03-533P1PN4MAA130 |
| Manufacturer | Parker Hannifin |
| Series / Size | R4V Series, Size 03 (NG6 / CETOP 3 interface) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per pressure range code) |
| Actuation Type | Pilot operated, spring-loaded adjustment |
| Mounting & Connection | Subplate mounting, ISO 4401 / CETOP 3 / NG6 interface |
| Adjustment Style | Manual adjustment (per model configuration code) |
| Hydraulic Fluid | Mineral-based hydraulic oil per DIN 51524 / ISO VG grades |
Engineering Features & Advantages
- Precision Pressure Control: The two-stage pilot operated design provides accurate pressure limitation with minimal pressure override, ensuring stable system pressure and consistent response across the full flow range.
- Low Pressure Rise Characteristic: Balanced main spool construction minimizes the pressure differential between cracking and full-flow conditions, reducing heat generation and improving overall circuit efficiency.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and a robust housing designed to withstand sustained high-pressure duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including the standard ISO 4401 / CETOP 3 subplate interface for straightforward drop-in installation.
- Versatile Adjustment: Spring-loaded adjustment mechanism allows precise setting of the relief pressure to match specific system requirements.
Typical Industrial Applications
The Parker R4V03-533P1PN4MAA130 is widely deployed as a system safety and pressure-limiting device in plastic
PRODUCT IMAGES

PARKER R4V03-533P1PN4MAA130 Pilot Operated Pressure Relief 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 PARKER R4V03-533P1PN4MAA130 Pilot-Operated Pressure Relief Valve. This German-made hydraulic component features a precise pressure control design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





