Join two parts with female threads in seconds, of the same size or of different sizes. In an air installation, almost everything has a female thread: quick couplers, regulators, filters, shut-off valves or air receiver outlets. The threaded hex nipple is the fitting with two male threads, equal or of different sizes, that lets you join these parts directly, without lengths of pipe or makeshift adaptors.
Available in six combinations: 1/8"-1/4", 1/4"-1/4", 1/4"-3/8", 3/8"-3/8", 3/8"-1/2" and 1/2"-1/2". The reducing versions act as both a connector and a size adaptor, so with a couple of hex nipples you can handle most workshop installations.
Advantages
Direct connection: joins two female parts without an intermediate pipe.
Reducing hex nipples: join and adapt sizes in a single part.
Six sizes: from 1/8" to 1/2".
Compact assembly: shorter installations with fewer leak points.
What it is for
Fitting a quick coupler to the outlet of a regulator or filter.
Joining shut-off valves, filters and regulators in line.
Adapting a 3/8" outlet to a 1/2" accessory (or vice versa).
Wrap the threads with PTFE tape in the direction of the thread, leaving the first thread clear so no debris gets into the installation. Hold the female part with a second spanner while tightening so you do not strain the accessory.
Frequently asked questions
Do I need to use PTFE tape?
Yes, apply PTFE tape or thread sealant to tapered male threads to prevent leaks.
What is a reducing hex nipple for?
For joining two female parts of different sizes, for example a 3/8" outlet with a 1/2" coupler.
What is the difference from a socket?
The hex nipple has two male threads; the socket has two female threads.
How do I know which size I need?
Check the female thread of the two parts you are going to join and choose the hex nipple with those two sizes.
Is it suitable for water?
It is designed for compressed air installations; for other fluids, please contact us first.
Frequently Asked Questions
Do I need to use PTFE tape?
Yes, apply PTFE tape or thread sealant to tapered male threads to prevent leaks.
What is a reducing hex nipple for?
For joining two female parts of different sizes, for example a 3/8" outlet with a 1/2" coupler.
What is the difference from a socket?
The hex nipple has two male threads; the socket has two female threads.
How do I know which size I need?
Check the female thread of the two parts you are going to join and choose the hex nipple with those two sizes.
Is it suitable for water?
It is designed for compressed air installations; for other fluids, please contact us first.
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