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 8191840 is a pneumatic 2-way ball valve featuring a quarter turn actuator and soft sealing principle for in-line installation with weld-on ends. It operates within a pressure range of 0.55 MPa to 0.8 MPa (5.5 bar to 8 bar / 79.75 psi to 116 psi) at a nominal pressure PN of 63, delivering a nominal width DN of 40 and a flow rate Kv of 170 m³/h. Built on DIN 3202-S13 and ISO 5211 norms with an F0507 flange hole pattern, it handles medium temperatures from -10 °C to 200 °C across compressed air, inert gas, water, and neutral liquids. 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 8191840. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.