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 8191857 is a pneumatic 3-way ball valve featuring a quarter turn actuator and a soft sealing principle for reversible flow with a nominal width DN of 25 and a Kv type L flow rate of 11.8 m3/h. Designed with an Rp1 fitting connection, an F0405 flange hole pattern, and in-line installation capability in any mounting position, this component operates within a pressure range of 0.55 MPa to 0.8 MPa and handles medium temperatures from -10 °C to 200 °C based on EN 10226-1 and ISO 5211 norms. 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 8191857. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.