Product Overview
The FESTO LR-D-MAXI (Part No. 186455) is a precision pneumatic pressure regulator from Festo’s D-series regulator family, engineered to deliver stable, repeatable downstream pressure control in compressed air systems. As a diaphragm-type pressure regulating valve, it reduces fluctuating primary (inlet) pressure to a constant, adjustable secondary (outlet) pressure, protecting downstream actuators, valves, and instrumentation from pressure surges and fluctuations. The LR-D-MAXI is a MAXI-size unit, offering high flow capacity for demanding pneumatic circuits, and features a lockable adjusting knob with a pressure gauge port for direct visual monitoring. Its balanced poppet and rolling diaphragm design ensures minimal pressure hysteresis and excellent regulation characteristics across the full flow range, making it a reliable choice for industrial automation, process control, and machine-building applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Pressure Regulator (Process & Pneumatic Valve) |
| Model Designation | LR-D-MAXI / 186455 |
| Manufacturer | Festo |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, MAXI size) |
| Regulation Type | Diaphragm-type pressure regulation with secondary venting |
| Adjustment | Lockable adjusting knob with pressure gauge connection |
| Mounting & Connection | Standard ISO / Manufacturer Interface (threaded port connections) |
Engineering Features & Advantages
- Precision Performance: Balanced poppet and rolling diaphragm design delivers minimal pressure hysteresis and highly stable outlet pressure, even under varying flow demand.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust housing and durable internal sealing elements.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Festo OEM standards, ensuring drop-in replacement without modification.
- Integrated Monitoring: Lockable adjusting knob and pressure gauge port allow precise setpoint control and direct visual verification of regulated pressure.
- High Flow Capacity: MAXI-size body provides generous flow rates suitable for main air lines and high-consumption pneumatic circuits.
Typical Industrial Applications
Typical applications include industrial automation and assembly lines, pneumatic control panels and valve manifolds, packaging and material handling machinery, and general machine-building where stable compressed air pressure is critical for actuator and process reliability.
PRODUCT IMAGES
FESTO LR-D-MAXI / 186455 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-MAXI / 186455 Pressure Regulator Valve. This Germany-made pneumatic component features a diaphragm-operated design, delivering leak-free, reliable pressure control for heavy-duty industrial systems.