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 8122784 is an electrical 3/2-way closed monostable industrial component featuring a 5.9 mm width, a poppet valve structural design with spring return, and a normal nominal flow rate of 5.5 l/min normalized to DIN 1343. This unit operates within a pressure range of -0.1 MPa to 0.7 MPa (-1 bar to 7 bar / -14.5 psi to 100 psi) with port 3 restricted to -1 to 0 bar, offering a nominal width of 0.36 mm, an IP40 degree of protection, and an adjustable exhaust air function with a soft sealing principle. Designed with front connection direction, reversible flow direction, and a 0.006 Gal/min US Cv value, it achieves a maximum switching frequency of 10 Hz and a 6 ms off switching time in any mounting position without 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 8122784. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.