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 175043 industrial component provides a supply air flow control non-return function featuring a QS-3 pneumatic connection, an M3 pneumatic connection, and a slotted screw adjusting element for screw-in mounting. Constructed with a nickel-plated brass screwed plug weighing 7 g, this part operates at pressures from 0.2 bar to 10 bar within ambient and medium temperatures of -10 °C to 60 °C using compressed air as per ISO 8573-1:2010 [7:4:4]. It delivers a standard nominal flow rate of 41 l/min in the flow control direction and 27 l/min to 44 l/min in the non-return direction, while meeting ISO 14644-1 Class 4 cleanroom suitability and VDMA24364-B1/B2-L LABS conformity. 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 175043. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.