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 8191859 is a pneumatic 3-way ball valve featuring a quarter-turn actuator, soft sealing principle, and an Rp1 1/2 fitting connection. Designed for in-line installation in any mounting position, this 3/2 valve function component operates at a nominal width DN of 40, a nominal pressure PN of 63, and an operating pressure range of 0.55 MPa to 0.8 MPa. It handles media temperatures from -10 °C to 200 °C with a Kv type L flow rate of 33.2 m³/h, and utilizes a breakaway torque of 42 Nm based on EN 10226-1 and ISO 5211 norms. Submit the exact part number, quantity, and application requirements to request 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 8191859. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.