Product Overview
The PARKER R4V06-53311A125 (OEM reference 016-87653-0) is a pilot operated pressure relief valve from Parker’s R4V series of industrial hydraulic pressure control valves. It functions as a normally closed, spring-biased safety and pressure-limiting device that protects hydraulic circuits from overpressure by diverting excess flow back to tank once the adjustable set pressure is reached. The two-stage pilot operated design combines a small pilot relief stage with a balanced main spool, delivering precise cracking pressure, minimal pressure override, and stable operation across a wide flow range. The valve is engineered for continuous duty in demanding industrial power units, manifolds, and machine hydraulic systems where accurate pressure control and reliable system protection are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | R4V06-53311A125 / 016-87653-0 |
| Manufacturer | Parker Hannifin |
| Series / Size | R4V Series, Size 06 (NG6 / CETOP 3 interface) |
| Operating Pressure | Standard Industrial Grade (up to 315 bar rated) |
| Pressure Adjustment | Adjustable spring-loaded pilot stage with locking adjustment element |
| Mounting & Connection | Subplate / manifold mounting, ISO 4401 / CETOP 3 interface |
| Seal Compatibility | Mineral oil based hydraulic fluids (standard NBR seals) |
| Fluid Temperature Range | -20 °C to +70 °C (standard seal configuration) |
Engineering Features & Advantages
- Precision Pressure Control: Two-stage pilot operated spool design provides accurate cracking pressure, low pressure override, and minimal hysteresis for consistent circuit protection.
- Stable Performance: Balanced main spool minimizes the influence of back pressure and flow forces, ensuring smooth, chatter-free relief action across the operating range.
- Industrial Reliability: Hardened, precision-lapped spool and sleeve assembly built for continuous operation under severe industrial conditions and high duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with the original Parker R4V06 interface and OEM reference 016-87653-0.
Typical Industrial Applications
This pilot operated pressure relief valve is widely deployed as a system protection and pressure-limiting element in plastic injection molding machines, metallurgical and hydraulic presses, CNC machine tool power units, and general industrial hydraulic power packs and manifolds. It is equally suited
PRODUCT IMAGES
PARKER R4V06-53311A125 / 016-87653-0 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 R4V06-53311A125 / 016-87653-0 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.
