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Products/Festo/543561
Festo 543561 Air preparation combination unit MSB4N-1/4:C3J3F3M1-WP
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Festo

543561

Air preparation combination unit MSB4N-1/4:C3J3F3M1-WP

The Festo part number 543561 is a size 4 MS series industrial component featuring a structural design that combines a filter regulator with a pressure gauge and a proportional standard oil mist lubricator. It delivers a normal nominal flow rate of 900 l/min across an operating pressure range of 1.5 bar to 14 bar, with a pressure regulation range between 1 bar and 12 bar. Operating via compressed air or inert gases, the unit incorporates a 5 µm grade of filtration, manual rotating condensate drain, and a rotary knob actuator lock with an integrated lock. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this unit.

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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
543561
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 543561.
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
5 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
1.5 bar...14 bar
Pressure regulation range
1 bar...12 bar
Normal nominal ow rate (normalized to DIN 1343)
900 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 [6:4:-]
Temperature of medium
-10 °C...60 °C
Ambient temperature
-10 °C...60 °C
Product weight
1700 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

Confirm the exact configuration

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.

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 543561. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.