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 8191881 is a 2-way pneumatic ball valve featuring a quarter-turn actuator, a soft sealing principle, and an in-line installation design that accommodates any mounting position with an F0507 flange hole pattern and EN 1092-1 flange connections. It operates within a pressure range of 0.55 MPa to 0.8 MPa and a nominal fitting pressure PN of 40, delivering a breakaway torque of 35 Nm at nominal differential pressure and a flow rate Kv of 170 m³/h across a medium temperature range of -10 °C to 200 °C. The unit processes compressed air, inert gases, water, and neutral liquids, utilizing slot direction for switching position indication and a reversible flow direction. Submit the exact part number, quantity, and application requirements to receive an RFQ 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 8191881. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.