LF-1-4-D-5M-MIDI Festo Filter

USD 80.86

Midi size 5 µm grade filter with G1/4 pneumatic ports. Features a 1600 l/min nominal flow rate, sintered design with centrifugal separator, and metal bowl guard.

SKU Festo-186460 Category
Compressed air preparation

LF-1/4-D-5M-MIDI Festo Filter

Model Identifier LF-1/4-D-5M-MIDI
Official Part Number 186460
GTIN Standard 4052568076207

Technical Overview

The Festo LF-1/4-D-5M-MIDI is a MIDI-sized pneumatic filter from the D series, engineered for high-performance compressed air preparation. Utilizing a sintered filter with a centrifugal separator, it provides a 5 µm grade of filtration to ensure clean air delivery for industrial applications. It features a robust die-cast zinc housing, a polycarbonate bowl with a metal bowl guard, and a manual rotating condensate drain. This unit supports a standard nominal flow rate of 1600 l/min and is designed for vertical mounting within a +/-5° tolerance. Note: This product is part of a legacy series scheduled for phase-out starting January 2027.

Key Features

  • 5 µm filtration grade for fine particle removal
  • Sintered filter with centrifugal separator design
  • Manual rotating condensate drain
  • Robust metal bowl guard for increased protection
  • Wide operating pressure range from 0 to 16 bar
  • RoHS-compliant materials
  • Midi size for D series modular air preparation
  • Die-cast zinc housing for industrial durability

High-efficiency sintered filter with centrifugal separator providing a 5 µm grade of filtration and a 1600 l/min nominal flow rate.

Technical Specification Matrix

ParameterValue
SizeMidi
SeriesD
Mounting positionVertical +/-5°
Grade of filtration5 µm
Condensate drainManually rotating
DesignSintered filter with centrifugal separator
Bowl guardMetal bowl guard
Symbol00991519
Operating pressure0 bar ... 16 bar
Standard nominal flow rate (standardised to DIN 1343)1600 l/min
Operating mediumInert gases
Corrosion resistance class CRC2 - Moderate corrosion stress
LABS (PWIS) conformityVDMA24364-B1/B2-L
Storage temperature-10 °C ... 60 °C
Air purity class at outputCompressed air to ISO 8573-1:2010 [6:8:4] Inert gases
Media temperature-10 °C ... 60 °C
Ambient temperature-10 °C ... 60 °C
Product weight700 g
Type of mountingWith accessories
Pneumatic connection, port 1G1/4
Pneumatic connection, port 2G1/4
Note on materialsRoHS-compliant
Material filterPE
Material housingDie-cast zinc
Material bowlPC

Industrial Applications

1. Pneumatic Packaging Machinery Air Preparation

Integrated into the air supply line of automated packaging machines to provide clean, filtered compressed air to pneumatic cylinders and directional control valves. The G1/4 connection is standard for mid-sized equipment, and the 1600 l/min flow rate easily supports rapid, high-frequency actuation cycles.

Problem Solved

Prevents premature wear and stiction in downstream pneumatic components by removing 5 µm solid particulates and separating condensed water via the centrifugal separator, avoiding costly machine downtime in high-speed packaging environments.

5 µm filtration1600 l/min nominal flow rateCentrifugal separatorG1/4 pneumatic connection

2. CNC Machining Center Pneumatic Clamping Fixtures

Utilized in the pneumatic circuit of CNC fixtures for secure workholding. The robust die-cast zinc housing and metal bowl guard provide essential durability against accidental impacts and moderate corrosion stress (CRC 2) common in metalworking and machining environments.

Problem Solved

Protects sensitive pressure regulators and clamping cylinders from shop-air contaminants and moisture while safely handling the higher supply pressures (up to 16 bar) required for secure pneumatic clamping. The manual rotating drain allows operators to easily purge collected condensate.

16 bar operating pressureDie-cast zinc housingMetal bowl guardManually rotating condensate drainCRC 2 - Moderate corrosion stress

3. Inert Gas Shielding Control in Welding Automation

Installed in the inert gas supply lines for robotic welding stations. The filter ensures the inert shielding gas delivered to the welding nozzle meets ISO 8573-1:2010 [6:8:4] purity standards, reliably removing fine dust or piping debris before it reaches the weld pool.

Problem Solved

Eliminates particulate contamination in inert gas lines that could otherwise compromise weld joint integrity or cause porosity in critical automated welding processes, while operating safely across varying ambient factory temperatures (-10 °C to 60 °C).

Inert gases operating mediumISO 8573-1:2010 [6:8:4] air purity-10 °C ... 60 °C ambient temperaturePE material filterVertical +/-5° mounting

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