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 8028539 is a 30 mm wide, directly controlled 3/2-way closed monostable industrial component featuring a soft sealing principle and negative overlap lap. This sub-base valve conforms to ISO 15218 with an ISO 15218 pneumatic working port, offering a normal nominal flow rate of 34 l/min, an operating pressure range of 0.2 MPa to 1 MPa (2 bar to 10 bar, 29 psi to 145 psi), and a maximum switching frequency of 5 Hz with 8 ms on and off switching times. It includes electrical actuation, a mechanical spring reset method, non-detenting manual override, IP65 protection, and allows mounting in any position with a required switching frequency of at least once a week for forced dynamization. Submit the exact part number, quantity, and application requirements to receive a formal 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 8028539. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.