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
Engineered by Festo, the part number 12743 is a manual one-way flow control valve featuring a rotary knob with a scale and front panel mounting capability for installation in any position. This component utilizes PK-3 pneumatic connections for both ports and operates within a pressure range of 0 bar to 8 bar using compressed air conforming to ISO 8573-1:2010 [5:4:3] or inert gases, while excluding oil lubrication operation. The housing is constructed from reinforced polyamide, delivering a standard nominal flow rate of 3.8 l/min in the flow control direction and 95 l/min in the non-return direction under an ambient temperature range of -10 °C to 50 °C. Submit the exact part number, quantity, and application requirements to request a quote for this item.
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 12743. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.