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 part number 566491 is a 5/2-way bistable industrial component featuring a 10 mm valve size, a piston gate valve structural design, and a piloted type of control with an external pilot air supply port. This electrical actuated unit provides a normal nominal flow rate ranging from 210 l/min to 330 l/min, a nominal width of 4 mm, and an operating pressure of -0.09 MPa to 1 MPa (-0.9 bar to 10 bar) at an operating voltage of 24V DC. It is equipped with an adjustable exhaust air function, a soft sealing principle, positive overlap, and versatile manual override options including detenting, non-detenting, and covered configurations, alongside an IP40, IP65, or plug socket degree of protection that can be mounted in any position. Furthermore, the device carries RCM compliance, c UL us recognition, CE marking per EU EMC, low voltage, and RoHS directives, and UKCA marking corresponding to UK instructions for electrical equipment, EMC, and RoHS. 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 566491. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.