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 528954 is a mini D-series directly controlled diaphragm regulator featuring a continuous compressed air supply and a rotary knob with detent for actuator locking. It delivers constant output pressure with primary pressure compensation and secondary exhausting across an operating pressure range of 1 bar to 16 bar and a regulation range of 0.5 bar to 12 bar. The unit supports a normal nominal flow rate of 1600 l/min, accommodates a G1/8 pressure gauge, operates within a medium and ambient temperature range of -10 °C to 60 °C, and weighs 760 g with any mounting position utilizing accessories. Submit the exact part number, quantity, and application requirements to request a 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 528954. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.