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 8204590 is a 2-way proportional flow control valve featuring electrical actuation and a non-reversible flow direction for an $N_2$ equivalent flow rate control range of 5 l/min to 100 l/min, where specified dynamic and accuracy values apply to setpoint values greater than 10% FS. It operates at an operating pressure of 0.6 MPa (6 bar) with an inlet pressure range of 0.1 MPa to 0.7 MPa (1 bar to 7 bar / 14.5 psi to 101.5 psi), an outlet pressure 2 range of -0.1 MPa to 0.35 MPa (-1 bar to 3.5 bar / -14.5 psi to 50.8 psi), an overload pressure of 0.8 MPa (8 bar / 116 psi), and a burst pressure of 2.1 MPa (21 bar / 305 psi). This IP20-rated component includes 1/4" front metal seal pneumatic connections for ports 1 and 2, supports vacuum applications, exhibits a total leakage of 0.6 l/h standardized according to SEMI E16 and tested with CDA, and functions within a relative air humidity of 5 to 85% non-condensating. 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 8204590. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.