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 part number 534338 is a one-way flow control valve featuring a QS-6 pneumatic connection 1, a G1/4 pneumatic connection 2, and a knurled screw adjusting element for screw-in mounting with an external thread. It operates within a pressure range of 0.2 bar to 10 bar across an ambient and medium temperature range of -10 °C to 60 °C, utilizing compressed air as per ISO 8573-1:2010 [7:4:4] with provisions for oil lubrication. The component delivers a standard nominal flow rate of 400 l/min in the flow control direction and 290 l/min to 420 l/min in the non-return direction, while maintaining VDMA24364-B1/B2-L LABS conformity and ISO 14644-1 Class 4 cleanroom suitability. Submit the exact part number, quantity, and application requirements to receive an official 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 534338. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.