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Festo
185771
Service unit LFR-1/4-D-MIDI-KF
This Festo industrial component from the D-series in size Midi integrates a branching module, pressure switch, on/off valve, and a filter regulator with a pressure gauge featuring a rotary knob with detent actuator lock. Designed for vertical mounting within ±5°, the unit handles an operating pressure of 0.1 MPa to 1.6 MPa (1 bar to 16 bar, 14.5 psi to 232 psi) and a pressure regulation range of 0.05 MPa to 1.2 MPa (0.5 bar to 12 bar, 7.25 psi to 174 psi) with a max pressure hysteresis of 0.025 MPa (0.25 bar, 3.625 psi). It achieves a normal nominal flow rate of 1720 l/min using compressed air conforming to ISO 8573-1:2010 [-:-:-] or inert gases, featuring a 40 µm filtration grade, a manual rotating condensate drain with a 43 cm³ max condensate volume, and a metal bowl guard. The assembly provides an output air quality class conforming to ISO 8573-1:2010 [7:8:4] or inert gases, alongside a corrosion resistance class 2 for moderate corrosion stress and VDMA24364-B1/B2-L LABS conformity. Submit the exact part number, quantity, and application requirements to request a quote.
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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 185771
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 185771.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Midi
- Series
- D
- Actuator lock
- Rotary knob with detent
- Mounting position
- Vertical ±5°
- Grade of ltration
- 40 µm
- Condensate drain
- Manual, rotating
- Structural design
- Branching module | Pressure switch | On/off valve | Filter regulator with pressure gauge
- Max. condensate volume
- 43 cm³
- Bowl guard
- Metal bowl guard
- Pressure gauge
- with pressure gauge
- Operating pressure
- 0.1 MPa...1.6 MPa | 1 bar...16 bar | 14.5 psi...232 psi
- Pressure regulation range MPa
- 0.05 MPa...1.2 MPa
- Pressure regulation range
- 0.5 bar...12 bar
- Pressure regulation range psi
- 7.25 psi...174 psi
- Max. pressure hysteresis
- 0.025 MPa | 0.25 bar | 3.625 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 1720 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [-:-:-] | Inert gases
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:8:4] | Inert gases
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 2400 g
- Type of mounting
- Alternatively: | In-line installation
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 185771. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.