Product Description
The Festo QS-8-50 is a push-in fitting for 8mm outer diameter pneumatic tubing, terminating in a male thread. It suits compressed air runs on valves, cylinders, manifolds and air preparation units within a wider control or automation build.
Where it fits on a job
Trade buyers spec this connector when a pneumatic sub-system needs quick, tool-free tubing changes during install or maintenance — common on machinery builds, automation cells and industrial control panels rather than pure CCTV runs. Pair it with matching 8mm Festo tubing and the mating threaded port on the valve or cylinder body.
Installation notes
Tubing pushes directly into the fitting; no tools are needed for that connection. A release ring lets you pull tubing back out for reconfiguration or repair without cutting the line. The thread carries a pre-applied sealant, so no additional sealing tape or paste is required at that joint.
Key specs
- Tube size: 8mm outer diameter, push-in style
- Thread: 1/2 inch male, nickel-plated brass
- Sealing: pre-applied thread sealant
- Use: compressed air / pneumatic control systems
Confirm tubing OD and thread size against the existing system before ordering, since push-in fittings are size-specific and won't adapt across mismatched diameters or threads.
Specifications
- Product Type
- Festo QS-8-50 Push-In Pneumatic Connector
- Model
- Festo QS-8-50
- Size
- 8mm Tube 1/2 Inch
Frequently Asked Questions
Which tube diameter is the QS-8-50 able to take?
It's built for 8mm outer diameter pneumatic tubing using a push-in connection.
Does the thread need extra sealant tape?
No — the thread comes with a pre-applied sealant, so no additional tape or paste is needed.
How is tubing removed once fitted?
The fitting has an integrated release ring that lets you pull the tubing back out for maintenance or reconfiguration.
What is the thread material?
The threaded section is nickel-plated brass, chosen for corrosion resistance in industrial settings.











