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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
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Festo
185751
Service unit LFR-1/2-D-MIDI-KD
The Festo part number 185751 is a Midi size D series industrial component featuring an on-off valve, a filter regulator with a pressure gauge, and a safety start-up valve configured with a manual rotating condensate drain and a metal bowl guard. It operates within a pressure range of 0.3 MPa to 1.6 MPa, providing a normal nominal flow rate of 2000 l/min for compressed air as per ISO 8573-1:2010 [-:-:-] and inert gases with a 40 µm filtration grade. The unit includes a rotary knob with detent for actuator locking, supports vertical mounting within ±5°, and delivers an output air quality class of ISO 8573-1:2010 [7:8:4]. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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Request a QuoteWhy no listed price?
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
- 185751
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 185751.
Worldwide sourcingSupport for planned and urgent industrial requirements.
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
- On/off valve | Filter regulator with pressure gauge | Safety start-up valve
- Max. condensate volume
- 43 cm³
- Bowl guard
- Metal bowl guard
- Pressure gauge
- with pressure gauge
- Operating pressure
- 0.3 MPa...1.6 MPa | 3 bar...16 bar | 43.5 psi...232 psi
- Pressure regulation range MPa
- 0.25 MPa...1.2 MPa
- Pressure regulation range
- 2.5 bar...12 bar
- Pressure regulation range psi
- 36.25 psi...174 psi
- Max. pressure hysteresis
- 0.025 MPa | 0.25 bar | 3.625 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 2000 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
- 2100 g
- Type of mounting
- Alternatively: | In-line installation | With accessories
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 185751. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.