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Festo
543550
Air preparation combination unit MSB4N-1/4:C3J1F3-WP
The Festo 543550 is an industrial component featuring a Size 4 MS-series structural design that combines a filter regulator with a pressure gauge and a proportional standard oil mist lubricator. It operates within an operating pressure range of 0.8 bar to 14 bar, a pressure regulation range of 0.3 bar to 12 bar, and delivers a normal nominal flow rate of 1300 l/min for compressed air or inert gases. Equipped with a manual rotating condensate drain, a 40 µm filtration grade, and a rotary knob actuator lock with an integrated lock, this unit maintains constant output pressure with primary pressure compensation and secondary exhausting in a vertical ±5° mounting position. 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
- 543550
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 543550.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- 4
- Series
- MS
- Actuator lock
- Rotary knob with integrated lock
- Mounting position
- Vertical ±5°
- Grade of ltration
- 40 µm
- Condensate drain
- Manual, rotating
- Structural design
- Filter regulator with pressure gauge | Proportional standard oil mist lubricator
- Controller function
- Constant output pressure | With primary pressure compensation | With secondary exhausting | With return ow characteristic
- Bowl guard
- Plastic bowl guard
- Pressure gauge
- with pressure gauge
- Operating pressure
- 0.8 bar...14 bar
- Pressure regulation range
- 0.3 bar...12 bar
- Normal nominal ow rate (normalized to DIN 1343)
- 1300 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -10 °C...60 °C
- For use in the food industry
- See supplementary material information
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 1500 g
- Type of mounting
- With accessories
- Pneumatic connection 1
- 1/4 NPT
- Pneumatic connection 2
- 1/4 NPT
- Pneumatic connection 3
- 1/4 NPT
- Housing material
- Die-cast aluminum
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 543550. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.