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 577529 is a 21 mm pneumatic industrial component featuring a 2x3/2 closed, monostable valve function and a plate seat structural design with soft sealing. It provides a normal nominal flow rate of 600 l/min through G1/8 pneumatic working ports, operating at pressures ranging from -0.9 bar to 10 bar with a mechanical spring reset method and internal pilot air supply. Certified as c UL us recognized, this directly controlled unit includes an adjustable exhaust air function and operates in any mounting position without a manual override. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 577529. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.