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
This Festo 8191903 industrial component features a 2-way ball valve with a pneumatic quarter-turn actuator, a soft sealing principle, and a 2 1/2 NPT fitting connection based on the ASME B1.20.1 and ISO 5211 norms. The unit operates at a pressure range of 0.55 MPa to 0.8 MPa with a nominal pressure PN of 63, a nominal width DN of 65, and a Kv flow rate of 684 m³/h for compressed air, inert gas, water without vapor, and neutral liquids across a medium temperature range of -10 °C to 200 °C. The valve provides a breakaway torque of 79 Nm at nominal differential pressure, an F0710 flange hole pattern, and a reversible flow direction with a slot-direction switching position indication for any mounting position. 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 8191903. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.