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 538044 is an MS series size 6 pilot-controlled precision diaphragm regulator featuring a rotary knob with detent for constant output pressure and secondary exhausting. It operates within a pressure range of 0.1 bar to 12 bar, handles an operating pressure of 1 bar to 14 bar, and delivers a normal nominal flow rate of 3300 l/min with a secondary venting flow rate of 900 l/min. Designed for compressed air per ISO 8573-1:2010 [7:4:4] or inert gases across ambient temperatures of -10 °C to 60 °C, this 850 g component incorporates G1/8 pressure gauge preparation and a moderate corrosion resistance class of CRC 2. Submit the exact part number, quantity, and application requirements for a formal 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 538044. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.