Product Overview
The FESTO LR-D-7-I-MIDI is a precision pneumatic pressure regulator from Festo’s proven 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 air tools from pressure surges and ensuring consistent process behavior. The MIDI size designation positions this unit in the mid-range flow class of the Festo regulator portfolio, making it a versatile choice for centralized air preparation stations as well as decentralized machine-level pressure control. Its inline, direct-acting regulating principle responds quickly to changes in flow demand, maintaining setpoint accuracy without the need for auxiliary pilot air. The regulator is designed for panel or inline mounting and integrates seamlessly with Festo’s modular air preparation (service unit) system, allowing combination with filters, lubricators, soft-start valves, and shut-off valves using standard connecting kits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Pressure Regulator (Process & Pneumatic Valve) |
| Model Designation | LR-D-7-I-MIDI |
| Manufacturer | Festo |
| Regulator Size | MIDI (mid-range flow class) |
| Working Medium | Compressed air (filtered, lubricated or non-lubricated) |
| Operating Pressure | Standard industrial grade, up to approx. 7 bar secondary (outlet) regulation range |
| Regulating Function | Diaphragm-type, direct-acting pressure reduction with relieving function |
| Adjustment | Manual rotary knob with lockable setpoint (depending on configuration) |
| Mounting & Connection | Inline / panel mounting; modular connection compatible with Festo air preparation units |
| Pressure Gauge Port | Integrated secondary pressure gauge connection |
Engineering Features & Advantages
- Precision Performance: The diaphragm-controlled regulating mechanism maintains a constant outlet pressure even as inlet pressure and flow demand fluctuate, delivering accurate setpoint control for sensitive pneumatic processes.
- Relieving Function: Excess downstream pressure is automatically vented, preventing trapped pressure from affecting actuators during shutdown or setpoint reduction.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Precision-manufactured to original FESTO specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
The FESTO LR-D-7-I-MIDI is a precision pneumatic pressure regulator from Festo’s proven D-series regulator family, engineered to deliver stable, repeatable downstream pressure control in compressed air systems.
PRODUCT IMAGES
FESTO LR-D-7-I-MIDI 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-7-I-MIDI Pressure Regulator Valve. This Germany-made pneumatic component features a diaphragm-operated design, delivering leak-free, reliable pressure control for heavy-duty industrial systems.