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 industrial component, part number 151559, features an exhaust air flow control non-return function with 1/2 NPT pneumatic connections on both ports and a slotted screw adjusting element for screw-in mounting. It operates within a pressure range of 0.3 bar to 10 bar and an ambient and medium temperature range of -10 °C to 60 °C using compressed air as per ISO 8573-1:2010 [7:4:4], with oil lubrication permitted. The unit incorporates a wrought aluminum alloy hollow bolt and nut, complies with RoHS materials notes, conforms to VDMA24364-B2-L LABS (PWIS), and meets ISO 14644-1 Class 4 cleanroom suitability. Submit the exact part number, quantity, and application requirements for a 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 151559. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.