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Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
537644
Filter regulator LFR-1/4-DB-7-5M-O-MINI
The Festo 537644 is a mini series DB filter regulator featuring a 44 mm width, a 5 µm filtration grade, and a manually rotating condensate drain. Engineered with a structural design lacking a pressure gauge while being prepared for a G1/8 gauge, it incorporates a rotary knob with detent for actuator locking, secondary exhausting, and a return flow function within an operating pressure range of 1.5 bar to 10 bar and a regulation range of 0.5 bar to 7 bar. It operates at a standard nominal flow rate of 1000 l/min using compressed air or inert gas within a temperature range of -5 °C to 50 °C, and conforms to CRC 1 and VDMA24364-B1/B2-L standards. Submit the exact part number, quantity, and application requirements for a formal 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
- 537644
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 537644.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Mini
- Width
- 44 mm
- Series
- DB
- Actuator lock
- Rotary knob with detent
- Mounting position
- Vertical +/- 5°
- Grade of ltration
- 5 µm
- Condensate drain
- Manually rotating
- Structural design
- Filter regulator without pressure gauge
- Controller function
- With secondary exhausting | With return ow function
- Pressure gauge
- G1/8 prepared
- Operating pressure
- 0.15 MPa...1 MPa | 1.5 bar...10 bar
- Pressure regulation range
- 0.5 bar...7 bar
- Max. pressure hysteresis
- 0.5 bar
- Standard nominal ow rate
- 1000 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [-:9:-] | Inert gas
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [6:8:4] | Inert gas
- Temperature of medium
- -5 °C...50 °C
- Ambient temperature
- -5 °C...50 °C
- Product weight
- 200 g
- Type of mounting
- Optionally: | Line installation | With through-hole | With mounting bracket
- Pressure gauge connection
- G1/8
- Pneumatic connection 1
- G1/4
- Pneumatic connection 2
- G¼
- Note on materials
- RoHS-compliant
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 537644. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.