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 538043 is an MS-series size 6 pilot-controlled precision diaphragm regulator featuring a rotary knob with detent and a structural design providing constant output pressure with secondary exhausting. It operates within a pressure range of 0.1 bar to 12 bar, an operating pressure of 1 bar to 14 bar, a maximum pressure hysteresis of 0.02 bar, a secondary venting flow rate of 900 l/min, and a normal nominal flow rate of 3300 l/min. The unit accommodates compressed air and inert gases within operating, medium, and ambient temperatures of -10 °C to 60 °C, weighs 850 g, and includes a G1/8 pressure gauge setup alongside CRC 2 moderate corrosion resistance. 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 538043. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.