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 193156 industrial component is a supply air flow control non-return valve featuring a QS-3 pneumatic connection 1, a G1/8 pneumatic connection 2, and a slotted screw adjusting element for screw-in mounting. It operates across an ambient and medium temperature range of -10 °C to 60 °C with an operating pressure of 0.2 bar to 10 bar, delivering a standard nominal flow rate of 130 l/min in the flow control direction and 100 l/min to 130 l/min in the non-return direction using compressed air as per ISO 8573-1:2010 [7:4:4]. This unit supports any mounting position, oil-lubricated operation, VDMA24364-B1/B2-L LABS conformity, and ISO 14644-1 Class 4 cleanroom suitability, while requiring a nominal tightening torque of 3 Nm with a ±10% tolerance. 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 193156. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.