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 8122821 is an electrical directly controlled rocker valve with a diaphragm seal, featuring a 3/2 open/closed monostable valve function and a 1.6 mm nominal width. Constructed with FFPM and PEEK media-contacting materials and a soft sealing principle, this size 10 component accommodates both liquid and gaseous media within a 0 °C to 50 °C temperature range. It includes a top electrical connection via a cable with a plug featuring connection pattern HP, a flange fluid connector, and a 35 µl internal volume with a non-reversible flow direction. Mountable in any position using through-holes for M2 screws, it operates without manual override and utilizes a mechanical spring reset method for media with a maximum particle size of 5 µm. Submit the exact part number, quantity, and application requirements for 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 8122821. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.