Product Overview
The PARKER R4R06-59511B110 (also referenced as 016-86135-0) is a pilot operated pressure reducing valve engineered by Parker Hannifin for precise downstream pressure regulation in industrial hydraulic systems. This valve maintains a constant reduced outlet pressure regardless of fluctuations in inlet pressure or changes in flow demand, making it a critical component for circuits requiring stable secondary pressure levels. The pilot operated design utilizes a balanced piston main stage controlled by a pilot relief stage, delivering accurate pressure control with minimal hysteresis and excellent repeatability. It is designed for inline mounting within hydraulic power units, manifolds, and custom circuit blocks where reliable pressure reduction is essential for protecting downstream components and ensuring consistent actuator performance.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Reducing Valve |
| Model Designation | R4R06-59511B110 / 016-86135-0 |
| Manufacturer | Parker Hannifin |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Parker R4R series) |
| Control Mechanism | Pilot operated, balanced piston main stage with adjustable pilot relief stage |
| Mounting & Connection | Standard ISO / Parker Interface (inline or manifold mounting) |
| Adjustment Type | Manual adjustment via pressure setting screw |
Engineering Features & Advantages
- Precision Performance: Pilot operated design delivers accurate and stable downstream pressure regulation with minimal pressure override and hysteresis, ensuring consistent operation of sensitive hydraulic actuators and downstream components.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust internal components designed to withstand high cycle rates and demanding hydraulic environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement for Parker R4R series valves and associated part number 016-86135-0.
- Stable Pressure Control: Maintains constant reduced outlet pressure independent of variations in inlet pressure and flow demand, protecting downstream circuits from pressure spikes and fluctuations.
Typical Industrial Applications
This pilot operated pressure reducing valve is commonly employed in plastic injection molding machines, metallurgical presses, CNC machine tools, and general industrial hydraulic power units where precise secondary pressure control is required. It is also suitable for marine hydraulics, construction equipment, and test stands demanding reliable pressure regulation.
PRODUCT IMAGES
PARKER R4R06-59511B110 / 016-86135-0 Pilot Operated Pressure Reducing 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 R4R06-59511B110 / 016-86135-0 Solenoid Directional Control Valve. This US-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
