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 528971 is a mini D-series industrial component featuring a directly controlled diaphragm regulator with continuous compressed air supply and a rotary knob with detent actuator lock. It delivers constant output pressure with primary pressure compensation and secondary exhausting across an operating pressure range of 1 bar to 16 bar, supported by a 1600 l/min normal nominal flow rate and G1/8 pressure gauge setup. Designed for any mounting position with a product weight of 1090 g, this unit operates within a temperature range of -10 °C to 60 °C for both the medium and ambient environment. Submit the exact part number, quantity, and application requirements to receive an accurate quote for this component.
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 528971. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.