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 8157630 is an industrial component featuring a supply air flow control non-return function with a QS-4 pneumatic connection 1 and an M5 pneumatic connection 2. Featuring manual actuation via a rotary knob with latch, this screw-in PBT housing unit operates within a pressure range of 0.02 MPa to 1 MPa (0.2 bar to 10 bar, 2.9 psi to 145 psi) and an ambient temperature range of -10 °C to 60 °C. It provides a standard nominal flow rate of 85 l/min in the flow control direction and 50 l/min to 90 l/min in the non-return direction while supporting ATEX Zone 1, 2, 21, and 22 explosion protection. Submit your exact part number, quantity, and application requirements to request 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 8157630. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.