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 size 6 MS series industrial component (part number 538004) features a pilot-controlled precision diaphragm regulator with a rotary knob with detent actuator lock and constant output pressure with secondary exhausting. Operating within a pressure range of 0.1 MPa to 1.4 MPa and a regulation range of 0.05 bar to 0.7 bar, this 850 g unit accommodates compressed air per ISO 8573-1:2010 [7:4:4] or inert gases with a normal nominal flow rate of 800 l/min and secondary venting flow rate of 220 l/min. It is designed for any mounting position with a G1/8 pressure gauge setup, moderate corrosion resistance class 2, and operating temperatures from -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements for a quote.
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 538004. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.