KQ2 Type plug-in and stem adapter fittings are used when a pneumatic tube line needs to connect through a push-in port, a plug-in stem, or a compact branch fitting.
This page covers KBQ2L, KQ2W, KQ2U, KQ2X, KQ2UW and KQ2XD fittings. These models are used in small pneumatic layouts where a tube connection needs to be added, extended, changed in size or branched from a plug-in stem.
KBQ2L and KQ2W are elbow plug-in styles. They are useful when the tube needs to turn close to a valve, cylinder or manifold instead of running straight out. The brass stem plugs into the matching push-in port, while the other side accepts pneumatic tubing.
KQ2U is a plug-in branch fitting. It can be used when one plug-in connection needs to provide more than one tube outlet in a compact area.
KQ2X and KQ2UW are different-diameter plug-in styles. They are used when the tube size changes between connected parts. This can help reduce the number of separate adapters in a tight machine space.
KQ2XD is a compact multi-port plug-in fitting with a bottom stem. It is suitable when several tube connections need to be arranged from one plug-in point.
Model selection depends on the tube outside diameter, the plug-in stem size and the body shape required by the installation space. Before ordering, check the tube size and confirm whether the fitting needs a standard, extended or different-diameter structure.
Cut the tube end flat before inserting it into the fitting. Make sure the tube surface is clean and free from deep scratches. Push the tube in by hand until it reaches the internal stop, then pull back lightly to check that it is held.
When removing the tube, press the release ring evenly and pull the tube out in line with the fitting. After the air line is connected, apply pressure slowly and check the connection area for leakage.
These plug-in and stem adapter fittings are often used around pneumatic valves, cylinders, manifolds, control cabinets, testing fixtures and small automation equipment. They are helpful when the available space is limited and the tube route needs to stay neat.
These fittings help add or change a tube connection without taking much space around the machine. They are useful near small valves, manifolds, cylinders and control panels.
Elbow and extended styles help the tube turn away from the port. Branch and multi-port styles help arrange more than one tube line from a plug-in connection.
KBQ2L, KQ2W, KQ2U, KQ2X, KQ2UW and KQ2XD cover several body shapes, including elbow, extended, different-diameter and multi-port plug-in styles.
The tube is inserted by hand into the push-in side. When the tube needs to be removed, the release ring can be pressed and the tube pulled out in line with the fitting.
These fittings are often used in compact automation equipment, testing fixtures, control cabinets and pneumatic layouts where the air line needs to stay neat.
