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.

Festo
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.
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.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
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.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 543631. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.