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 8122799 is a pneumatically actuated industrial component featuring a rocker valve design with a diaphragm seal and a soft sealing principle. This size 10 monostable 3/2 open/closed valve operates at pressures ranging from -0.075 MPa to 0.1 MPa with piloted control requiring a pilot pressure of 0.15 MPa to 0.3 MPa via an M3 pilot air port 21. It incorporates an adjustable exhaust air function, a mechanical spring reset method, a non-reversible flow direction, and a nominal width of 1.6 mm with an external thread fitting connection, a flange fluid connector, and through-hole mounting for M2 screws in any mounting position without a manual override. Submit the exact part number, quantity, and application requirements to request a quote for this item.
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 8122799. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.