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 534915 is a Size 6 MS series piloted precision diaphragm regulator featuring a constant output pressure controller function with secondary exhaust and a rotary knob with lock actuator lock. This component operates within a working pressure of 1 to 14 bar, a pressure control range of 0.05 to 2.5 bar, and features three G1/4 pneumatic connection ports with a standard nominal flow rate of 2,300 l/min or greater. It supports compressed air conforming to ISO8573-1:2010 [7:4:4] or inert gases for the operating medium, though lubricated operation is not possible. 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 534915. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.