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 8166594 is a 5/2-way monostable industrial component featuring electrical actuation and a piloted type of control. Built with a piston slide and soft sealing principle, this 38 mm wide valve operates at 24V DC with an operating pressure range of 0.3 MPa to 0.8 MPa and delivers a normal nominal flow rate of 1200 l/min according to DIN 1343. It includes a mechanical spring reset, an adjustable exhaust air function, and a sub-base pneumatic working port of size 1 adhering to the ISO 5599-1 standard, complete with IP65 protection when used with a plug socket. Submit the exact part number, quantity, and application requirements to receive a 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 8166594. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.