Festo LFR-1/8-D-MINI 159630 Filter Regulator G1/8 40μm

Festo LFR-1/8-D-MINI is a filter regulator unit combining particle filtration and pressure regulation in one space-saving body. Filters 40 µm particles from compressed air, removes condensate via manual rotary drain, and stabilizes downstream pressure. Mini size 40 mm grid, die-cast zinc housing with polycarbonate bowl, metal bowl guard, and integrated pressure gauge. Maximum operating pressure 16 bar, regulation range 0.5–12 bar, nominal flow 750 l/min. G1/8 parallel threaded ports. Rotating knob with lock secures set pressure against accidental changes.

Applications:

• Compressed air preparation for pneumatic valves, cylinders, and actuators

• Point-of-use filtration and pressure regulation in factory automation

• Assembly lines, packaging machinery, material handling systems

Core Specifications:

• Product type: Filter regulator (combined unit)

• Series: D – Mini size (40 mm grid dimension)

• Pneumatic connection: G1/8（female, both ports）

• Filtration grade: 40 µm

• Standard nominal flow rate: 750 l/min（DIN 1343）

• Operating pressure range: 1 … 16 bar

• Pressure regulation range: 0.5 … 12 bar

• Max. pressure hysteresis: 0.2 bar

• Condensate drain: Manual, non-detenting rotary

• Bowl guard: Metal (zinc die-cast)

• Bowl material: Polycarbonate (PC)

• Housing material: Die-cast zinc

• Pressure gauge: Integrated

• Actuator lock: Rotating knob with detent lock

• Mounting position: Vertical (±5°)

Advanced Specifications:

• Max. condensate volume: 22 ml

• Operating medium: Compressed air as per ISO 8573‑1:2010 [7:8:4]; inert gas

• Lubricated operation: possible (if lubricated, continued lubrication required)

• Ambient / media temperature: –10 °C … +60 °C

• Storage temperature: –10 °C … +60 °C

• Corrosion resistance class (CRC): 2 – Moderate corrosion stress

• LABS (PWIS) conformity: VDMA24364‑B1/B2‑L

• Air quality class at output: ISO 8573‑1:2010 [7:8:4]

• Product weight: approx. 460 – 700 g

• Authorisation: c UL us recognized (OL)

• RoHS compliant

System Integration:

• Belongs to Festo D series service units for compressed air preparation.

• Compatible with 8 mm OD pneumatic tubing and all Festo QS/QSL push‑in fittings and GRLA flow control valves.

• Measurements correspond to the 40 mm grid dimension of the Festo modular pneumatic system.

• For detailed installation instructions, refer to the product hardware manual.

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• LFR-1/4-D-MINI – G1/4 thread, higher flow (1400 l/min)

• LF-1/8-D-MINI – Mini filter only (without pressure regulator)

• LR-1/8-D-MINI – Mini pressure regulator only (without filter element)

• MS4‑LFR – Larger D series service unit (G1/4, 5 µm filter) for higher air purity requirements