Product Overview
The FESTO HE-D-MIDI / FRM-D-MIDI / PEV-1/4-B-OD / LOE-D-MIDI is a modular pneumatic air preparation unit (service unit) from Festo’s D-series MIDI line, engineered to condition compressed air before it enters downstream pneumatic valves, cylinders, and actuators. The assembly combines an HE-D-MIDI on/off shut-off valve, an FRM-D-MIDI precision pressure regulator, a PEV-1/4-B-OD pressure switch, and an LOE-D-MIDI lubricator into a single manifold-mounted conditioning block. Operating on a diaphragm-type regulating principle with a spring-loaded setpoint, the unit delivers stable secondary pressure, controlled lubrication, and electrical pressure monitoring within a compact MIDI footprint. It serves as the central air-treatment interface in industrial pneumatic circuits, protecting sensitive process and pneumatic valves from contamination, pressure fluctuation, and inadequate lubrication.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Air Preparation Unit (Service Unit) — Process & Pneumatic Valve Assembly |
| Model Designation | HE-D-MIDI / FRM-D-MIDI / PEV-1/4-B-OD / LOE-D-MIDI |
| Series / Size | Festo D-Series, MIDI size |
| Operating Pressure | Standard Industrial Grade (up to 16 bar primary; regulated secondary per FRM setting) |
| Port Connection | G1/4 (PEV-1/4-B-OD pressure switch connection); MIDI manifold ports |
| Mounting & Connection | Modular MIDI manifold mounting, wall or bracket mount, ISO-compatible interface |
| Media | Compressed air (filtered, lubricated or non-lubricated) |
| Pressure Switch Output | Electrical signal (PEV-1/4-B-OD), adjustable switching point |
Engineering Features & Advantages
- Precision Performance: The FRM-D-MIDI diaphragm regulator maintains a constant secondary pressure with minimal hysteresis, ensuring stable actuation of downstream pneumatic valves and cylinders even under fluctuating supply conditions.
- Integrated Pressure Monitoring: The PEV-1/4-B-OD pressure switch provides an electrical feedback signal for system monitoring, interlocking, and fault detection, enabling closed-loop control of the air preparation stage.
- Controlled Lubrication: The LOE-D-MIDI lubricator delivers proportional oil mist to downstream components, reducing wear on pneumatic valve spools and actuator seals in continuous-duty operation.
- Modular MIDI Architecture: Individual components (HE shut-off, FRM regulator, PEV switch, LOE lubricator) mount on a common manifold, allowing rapid service, reconfiguration, or replacement without disturbing the entire air line.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original FESTO standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
It serves as the central air-treatment interface in industrial pneumatic circuits, protecting sensitive process and pneumatic valves from contamination, pressure fluctuation, and inadequate lubrication.
PRODUCT IMAGES
FESTO HE-D-MIDI / FRM-D-MIDI / PEV-1/4-B-OD / LOE-D-MIDI Pneumatic Air Preparation Unit
⚡ 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 HE-D-MIDI / FRM-D-MIDI / PEV-1/4-B-OD / LOE-D-MIDI Pneumatic Service Unit. This Germany-made 24V DC pneumatic component features a modular design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.