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 8191820 is a pneumatic 2-way ball valve featuring a quarter-turn actuator, soft sealing principle, and an Rp2 1/2 fitting connection with a nominal width DN of 65. Based on DIN 3202-M3, EN 10226-1, and ISO 5211 norms, this in-line mounted assembly operates at a pressure range of 0.55 MPa to 0.8 MPa, a nominal pressure PN of 63, and delivers a flow rate Kv of 507 m³/h across a medium temperature range of -10 °C to 200 °C. Compatible with compressed air, inert gas, water without vapor, and neutral liquids, it exhibits a breakaway torque of 78 Nm at nominal differential pressure and supports reversible flow with a slot-direction switching position indication. 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 8191820. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.