LFR-1-2-D-MAXI Festo Filter Regulator

USD 232.44

Maxi size 40 μm filter regulator with G1/2 ports. Features a 9400 l/min flow rate, rotary knob actuator lock, and integrated analog pressure gauge.

SKU Festo-186489 Category
Filter regulator

LFR-1/2-D-MAXI Festo Filter regulator

Model Identifier LFR-1/2-D-MAXI
Official Part Number 186489
GTIN Standard 4052568014728

Technical Overview

The Festo LFR-1/2-D-MAXI is a robust D-series filter regulator designed for high-performance compressed air preparation. It integrates a 40 µm filter with a pressure regulator featuring a rotary knob actuator lock and an analog pressure gauge. This Maxi-sized unit is constructed with a die-cast zinc housing and a polycarbonate bowl protected by a metal bowl guard, capable of delivering a high nominal flow rate of 9400 l/min. It is suitable for inert gases and offers a pressure regulation range between 0.5 and 12 bar. Please note that this product is scheduled for discontinuation starting January 2027.

Key Features

  • Integrated filter and pressure regulator unit
  • Actuator lock with rotary knob and detent
  • High-grade 40 µm filtration for air purity
  • Manual rotating condensate drain
  • Equipped with a metal bowl guard for safety
  • Supports vertical mounting position within +/-5°
  • Analog pressure gauge included as standard
  • RoHS-compliant construction materials
  • Die-cast zinc housing for durability

High standard nominal flow rate of 9400 l/min for high-demand industrial applications.

Technical Specification Matrix

ParameterValue
SizeMaxi
SeriesD
Actuator lockRotary knob with detent
Mounting positionVertical +/-5°
Grade of filtration40 µm
Condensate drainManually rotating
DesignFilter regulator with pressure gauge
Max. condensate volume80 ml
Bowl guardMetal bowl guard
Symbol00991589
Pressure gauge (ANALOG) or Pressure display (DIGITAL)With pressure gauge
Operating pressure (MPa)0.1 MPa ... 1.6 MPa
Operating pressure (bar)1 bar ... 16 bar
Pressure regulation range0.5 bar ... 12 bar
Max. pressure hysteresis0.4 bar
Standard nominal flow rate (standardised to DIN 1343)9400 l/min
Operating mediumInert gases
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
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 [7:8:4] Inert gases
Media temperature-10 °C ... 60 °C
Ambient temperature-10 °C ... 60 °C
Product weight1370 g
Type of mountingWith accessories
Pneumatic connection, port 1G1/2
Pneumatic connection, port 2G1/2
Note on materialsRoHS-compliant
Material housingDie-cast zinc
Material bowlPC

Industrial Applications

1. High-Volume Pneumatic Assembly Line Air Preparation

Installed at main pneumatic drops in automotive and heavy equipment assembly plants to provide clean, regulated compressed air to multiple high-demand pneumatic tools and hoists simultaneously.

Problem Solved

Prevents pressure drops and moisture-induced wear in pneumatic tools during high-demand cycles by delivering a massive 9400 l/min flow rate with 40 µm filtration and an 80 ml manual condensate drain.

9400 l/min nominal flow rate40 µm filtrationG1/2 pneumatic connectionPressure regulation 0.5 bar to 12 bar

2. Inert Gas Blanketing Regulation in Chemical Processing

Utilized in chemical or food processing facilities to regulate and filter inert gases used for tank blanketing, ensuring safe, consistent environmental control over sensitive materials.

Problem Solved

Eliminates particulate contamination and pressure fluctuations in sensitive inert gas blanketing systems, leveraging its broad 0.5 to 12 bar regulation range and specific compatibility with inert gases.

Inert gases operating mediumDie-cast zinc housingCorrosion resistance class CRC 21 bar to 16 bar operating pressure

3. Primary Air Supply Filtration for Heavy Packaging Machinery

Serves as the primary air preparation unit for heavy-duty palletizing and packaging machinery, protecting downstream pneumatic directional control valves and large-bore actuators from debris and factory line condensation.

Problem Solved

Protects sensitive downstream automation components from factory floor air contamination and physical impacts by combining a durable metal bowl guard, high condensate capacity (80 ml), and reliable 40 µm particulate filtering.

Size MaxiMetal bowl guard80 ml max condensate volumeManually rotating condensate drain

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