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Products/Festo/543631
Festo 543631 Diaphragm air dryer MS4-LDM1-1/8-P10-Z
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Festo

543631

Diaphragm air dryer MS4-LDM1-1/8-P10-Z

The Festo part number 543631 is an industrial component featuring a size 4 MS series design structure with a membrane dryer operating within a working pressure range of 3 to 12.5 bar and a standard nominal flow rate of 100 l/min. Constructed with an aluminum die-cast housing, a wrought aluminum alloy bowl, and G1/8 pneumatic connection ports, this unit achieves a pressure dew-point reduction of 20 K for compressed air conforming to ISO8573-1:2010 [1:4:2] without lubricated operation. It weighs 0.53 kg, offers optional line or accessory mounting for vertical +/- 5° assembly positions, and maintains an operating and ambient temperature range of 2 to 50 °C with a CRC corrosion resistance classification of 2. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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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
543631
Data verification
Manufacturer evidence reviewed

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Verified configuration

Technical Specifications

Size
4
Series
MS
Assembly position
Vertical +/- 5°
Design structure
Membrane dryer
Working pressure
3 ... 12.5 bar
Standard nominal flow rate
100 l/min
Operating medium
Compressed air in accordance with ISO8573-1:2010 [1:4:2]
Note on operating and pilot medium
Lubricated operation not possible
Pressure dew-point reduction
20 K
Corrosion resistance classification CRC
2
Storage temperature
-20 ... 60 °C
Air purity class at output
Compressed air to ISO8573-1:2010 [1:3:2]
Medium temperature
2 ... 50 °C
Ambient temperature
2 ... 50 °C
Product weight
0.53 kg
Mounting type
Optional | Line installation | with accessories
Pneumatic connection, port
2 G1/8
Materials note
Conforms to RoHS
Materials information, housing
Aluminum die cast
Materials information for bowl
Wrought Aluminum alloy

Engineering context

Identification and RFQ Guidance

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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.

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 543631. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.