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 537478 is an electrical industrial component featuring a 3/2 open, monostable valve function with a 20 mm valve size and a piston slide design structure. This piloted component operates with a working pressure of -0.9 to 8 bar, an external pilot air supply of 2 to 8 bar, a standard nominal flow rate of 500 l/min, and a soft sealing principle utilizing an air spring reset. Featuring IP65 protection, detenting and pushing manual override, non-reversible flow direction, and 24 V DC 1.5 W characteristic coil data, it achieves 20 ms switching times for both on and off states in any assembly position. 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 537478. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.