Product Overview
The Parker R4V10-53510A525 (OEM reference 016-86256-0) is a pilot operated pressure relief valve engineered for precise system pressure regulation and overload protection in industrial hydraulic circuits. Manufactured by Parker Hannifin, this valve utilizes a two-stage pilot and main poppet/spool architecture that delivers accurate cracking pressure, minimal pressure override, and fast response under dynamic flow conditions. It is designed to limit maximum system pressure by diverting excess flow to tank, protecting pumps, cylinders, and downstream components from pressure spikes and cavitation damage. The R4V10 series is a direct-fit replacement for original equipment installations and is widely deployed in continuous-duty hydraulic power units and machine tool systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | R4V10-53510A525 / 016-86256-0 |
| Manufacturer | Parker Hannifin |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per R4V10 series) |
| Actuation Principle | Pilot stage with adjustable spring-loaded poppet controlling main stage |
| Adjustment Type | Manual pressure adjustment (screw / cap style) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (subplate or inline configuration) |
| Fluid Compatibility | Mineral-based hydraulic oils per ISO VG standards |
Engineering Features & Advantages
- Precision Pressure Control: Pilot operated design provides accurate cracking pressure and low pressure override, maintaining stable system pressure across varying flow rates.
- Fast Dynamic Response: Two-stage pilot and main poppet architecture reacts quickly to pressure transients, minimizing spike propagation and protecting downstream components.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with hardened internal components and robust sealing for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including the 016-86256-0 reference, ensuring drop-in installation without modification.
Typical Industrial Applications
This pilot operated pressure relief valve is commonly specified in plastic injection molding machines, metallurgical presses, CNC machine tool hydraulic power units, and general industrial hydraulic systems requiring reliable maximum pressure limitation and overload protection. It is also suitable for construction and marine hydraulic circuits where stable pressure control and rapid response are critical to system safety and performance.
PRODUCT IMAGES
PARKER R4V10-53510A525 / 016-86256-0 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 R4V10-53510A525 / 016-86256-0 Pilot-Operated Pressure Relief Valve. This Germany-made hydraulic component features a precise pressure control design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
