Product Overview
The FESTO LR-D-MICRO (Part No. 526261) is a precision pneumatic pressure regulator from Festo’s LR series of service units, engineered to deliver accurate, stable downstream pressure regulation in compressed air systems. Operating on a direct-acting diaphragm principle, this micro-sized regulator reduces and maintains a constant output pressure regardless of fluctuations in the upstream supply pressure or changes in air consumption. Its compact body makes it ideal for integration into space-restricted pneumatic control panels, valve manifolds, and end-of-arm tooling where precise pressure control is critical to actuator force, speed, and repeatability. As a genuine Festo service component, the LR-D-MICRO ensures drop-in dimensional and functional compatibility with the original equipment manufacturer’s specifications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Pressure Regulator (Service Unit Valve) |
| Model Designation | LR-D-MICRO / 526261 |
| Manufacturer | Festo |
| Operating Pressure | Standard Industrial Grade (Up to rated bar) |
| Working Medium | Compressed Air (filtered, lubricated or non-lubricated) |
| Regulation Principle | Direct-acting diaphragm with adjustable spring setpoint |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Micro size, threaded ports) |
Engineering Features & Advantages
- Precision Performance: Direct-acting diaphragm design delivers accurate, repeatable output pressure regulation with minimal hysteresis, ensuring consistent actuator response across the full flow range.
- Compact Micro Footprint: The MICRO size designation allows installation in tight pneumatic cabinets, manifold assemblies, and mobile equipment where space is at a premium.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust housing and durable diaphragm assembly resistant to vibration and pressure cycling.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Festo OEM standards, ensuring seamless replacement without modification to existing piping or mounting.
Typical Industrial Applications
The FESTO LR-D-MICRO pressure regulator is widely deployed in pneumatic control circuits across industries including automated assembly and packaging machinery, plastic injection molding machines, CNC machine tools and robotic end-effectors, and general factory automation where precise secondary pressure regulation protects downstream valves, cylinders, and air tools from supply pressure fluctuations.
PRODUCT IMAGES

FESTO LR-D-MICRO / 526261 Pneumatic Pressure Regulator
âš¡ 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 FESTO LR-D-MICRO / 526261 Pressure Regulator Valve. This Germany-made pneumatic component features a diaphragm-operated design, delivering precise, reliable pressure control for heavy-duty industrial systems.