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 528984 is a mini series D directly controlled diaphragm regulator featuring a continuous compressed air supply and a rotary knob with detent actuator lock. It provides constant output pressure with primary pressure compensation and secondary exhausting across a regulation range of 0.5 bar to 7 bar (0.05 MPa to 0.7 MPa) at an operating pressure of 1 bar to 16 bar. The unit delivers a normal nominal flow rate of 1800 l/min for compressed air media conforming to ISO 8573-1:2010 [7:4:4] within a medium and ambient temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this 1480 g 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 528984. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.