Festo D-MIDI Modular Pneumatic Air Preparation and Pressure Control Assembly

Industrial pneumatic air preparation and control assembly manufactured by Festo, featuring interconnected D-MIDI series components and an additional mechanical pressure switch.

The assembly is designed for compressed air filtration, pressure regulation, air supply isolation, controlled pressure build-up, air distribution, and pressure monitoring in industrial pneumatic systems.

It combines multiple air preparation and control functions in a single modular configuration.

Included Components:

1. Festo HE-D-MIDI – Manual Shut-Off Valve

Manual pneumatic shut-off valve designed to isolate the compressed air supply.

• Series: D-MIDI
• Function: Manual air supply shut-off
• Maximum inlet pressure indicated: 16 bar
• Manual operating knob

2. Festo LFR-D-MIDI – Filter Regulator

Combined compressed air filter and adjustable pressure regulator.

• Series: D-MIDI
• Function: Air filtration and pressure regulation
• Maximum inlet pressure indicated: 16 bar
• Maximum regulated outlet pressure indicated: 12 bar
• Filter grade indicated: 40 µm
• Adjustable pressure control
• Integrated filter bowl
• Condensate drain

3. Festo HEE-D-MIDI-24 – Electrically Operated Shut-Off Valve

Electrically actuated pneumatic valve for switching the compressed air supply.

• Series: D-MIDI
• Function: Electrically controlled air shut-off
• Control voltage designation: 24 V
• Operating pressure indicated: 2.5–16 bar
• Electrical connector interface

4. Festo HEL-D-MIDI – Soft-Start Valve

Pneumatic valve designed for controlled pressure build-up when activating a compressed air system.

• Series: D-MIDI
• Function: Gradual pressure build-up
• Minimum inlet pressure indicated: 3 bar
• Maximum inlet pressure indicated: 16 bar
• Integrated flow control function

5. Festo FRM-D-MIDI – Air Distribution Module

Pneumatic distribution module for providing additional compressed air connection points.

• Series: D-MIDI
• Function: Compressed air distribution
• Maximum inlet pressure indicated: 16 bar

6. Festo PEV-1/4-B-OD – Mechanical Pressure Switch

Mechanical pressure switch for monitoring pneumatic system pressure and switching an electrical contact.

• Manufacturer: Festo
• Model: PEV-1/4-B-OD
• Part Number: 175250
• Operating Pressure: 1–12 bar
• Maximum Switching Voltage: 250 V AC
• Maximum Switching Voltage: 125 V DC
• Switching Contact: Changeover Contact
• Adjustable Switching Pressure

Technical Specifications:

• Manufacturer: Festo
• Product Type: Modular Pneumatic Air Preparation Assembly
• Series: D-MIDI
• Configuration: Five Pneumatic Modules with Pressure Switch
• Operating Medium: Compressed Air
• Filtration: Integrated 40 µm Filter
• Pressure Regulation: Adjustable
• Air Supply Isolation: Manual and Electrically Operated
• Pressure Build-Up: Soft-Start Function
• Pressure Monitoring: Mechanical Pressure Switch
• Air Distribution: Integrated Distribution Module
• Electrical Control: 24 V Designation on Shut-Off Valve
• Mounting: Modular Industrial Installation
• Country of Manufacture: Not Confirmed

Main Features:

• Complete modular pneumatic air preparation assembly
• Manual compressed air shut-off
• Integrated filter regulator
• Adjustable outlet pressure
• Electrically controlled shut-off valve
• Controlled pressure build-up
• Air distribution module
• Mechanical pressure monitoring
• Industrial Festo D-MIDI construction

Applications:

Suitable for industrial compressed air systems, including:

• Industrial Automation
• Pneumatic Machinery
• Manufacturing Equipment
• Automated Production Lines
• Machine Air Supply Systems
• Pneumatic Control Circuits
• Industrial Maintenance and Replacement Applications

Condition:

Used, fully functional.

The assembly shows cosmetic signs of previous industrial use.

The electrical connector interfaces are visible in the photographs. Electrical wiring and mating connectors may be required for installation.

Important Information:

The product is sold as a complete assembled unit, including all visible Festo pneumatic modules and the attached PEV-1/4-B-OD pressure switch.

Exact connection sizes, individual module variants, and compatibility with existing equipment should be verified before installation.

Please review all photographs for the precise configuration and physical condition.