Festo FRC-3/8-D-MIDI-KB Pneumatic Service Unit

USD 342.29

High-performance G3/8 pneumatic service unit combining a 40µm filter regulator, pressure switch & mist lubricator. Delivers 2100 L/min with 0.5-12 bar control.

SKU Festo-185809 Category
Industrial Automation > Pneumatics > Compressed Air Preparation > Service Units

Festo FRC-3/8-D-MIDI-KB Pneumatic Service Unit

Model Identifier FRC-3/8-D-MIDI-KB
Official Part Number 185809
GTIN Standard 4052568145675

Technical Overview

The Festo 185809 (Model: FRC-3/8-D-MIDI-KB) is a comprehensive Midi-sized service unit combination designed for advanced pneumatic air preparation. Engineered with a G3/8 threaded connection, this multi-functional assembly integrates a 40 µm filter regulator, a branching module equipped with a pressure switch, and a proportional standard mist lubricator. Designed to optimize air quality and ensure reliable component operation, it supports a robust standard nominal flow rate of 2100 L/min and offers a wide pressure regulation range from 0.5 to 12 bar. The unit features a durable zinc die-cast housing, a manually rotating condensate drain with a 43 cm³ capacity, and a polycarbonate bowl protected by a metal guard for enhanced industrial resilience. Its integrated pressure switch enables real-time pneumatic system monitoring, making it an essential component for demanding automation pipelines requiring strict pressure hysteresis control and continuous lubrication.

Key Features

  • Grid dimension 55mm (Midi size) with female G3/8 pneumatic connections
  • Multi-component integration: filter regulator, branching module, pressure switch, and lubricator
  • Supports a high standard nominal flow rate of 2100 L/min
  • 40 µm grade of filtration for superior compressed air purity
  • Manually rotating condensate drain with 43 cm³ maximum condensate volume
  • Durable zinc die-cast housing with a polycarbonate bowl and metal guard
  • Wide pressure regulation range from 0.5 to 12 bar (max operating 16 bar)
  • Rotary knob actuator with detent lock for secure pressure settings

Integrated Branching Module with Pressure Switch & Proportional Mist Lubricator

Technical Specification Matrix

ParameterValue
Pneumatic ConnectionG3/8 (Female)
Grade of Filtration40 µm
Standard Nominal Flow Rate2100 L/min
Operating Pressure Range1 to 16 bar
Pressure Regulation Range0.5 to 12 bar
Max Pressure Hysteresis0.35 bar
Max Condensate Volume43 cm³
Housing MaterialZinc die-casting
Bowl MaterialPolycarbonate (PC) with Metal Guard
Ambient / Media Temperature-10 °C to +60 °C
Corrosion Resistance Class (CRC)2 (Moderate corrosion stress)

Industrial Applications

1. Automated Packaging Machinery

Pneumatic cylinders in packaging lines require precise, lubricated air to prevent premature seal wear during continuous, high-speed indexing operations.

Problem Solved

Ensures continuous mist lubrication and monitors system pressure drops via the integrated switch, preventing pneumatic stalling and machinery damage.

2100 L/min flowMist lubricatorPressure switch monitoring0.5 to 12 bar regulation

2. Industrial Fluid Dispensing Systems

Automated spraying and adhesive dispensing equipment relies on highly consistent air pressure and pure compressed air to maintain coating and droplet uniformity.

Problem Solved

The 40 µm filtration grade removes pipeline contaminants while the regulator minimizes pressure hysteresis (0.35 bar max) for perfectly stable fluid delivery.

40 µm filtration0.35 bar hysteresisFilter regulatorG3/8 pneumatic connection

3. CNC Machining Center Automation

Modern CNC machines use auxiliary pneumatic systems for tool changing, clamping, and part ejection, requiring clean, pressure-verified auxiliary air.

Problem Solved

The integrated branching module allows parallel air tapping, while the pressure switch guarantees safe operational thresholds (up to 16 bar) before initiating critical tool changes.

Branching module1 to 16 bar operating pressureZinc die-cast housingSafety interlock

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