Smc Pneumatics KQ2R12-16A Plug-in Reducer Fitting 145 Psi

Product Description

The SMC PNEUMATICS KQ2R12-16A is a push-to-connect plug-in reducer tube fitting designed for pneumatic plumbing systems where two different tube outside diameters must be joined without tools. The fitting accepts a 12 mm tube on one end and a 16 mm stem on the other, allowing a direct inline size reduction in a single compact body measuring 45.70 mm in overall length. Constructed from brass and polybutylene, it is rated for a maximum working pressure of 145 psi and a temperature range of 23 degrees F to 140 degrees F. Licensed pneumatic technicians and pipefitters use this part in compressed-air distribution, fluid-transfer manifolds, and tubing runs where space and speed of assembly matter.

This fitting is suited for residential and light commercial pneumatic and fluid-handling applications. The push-to-connect design allows rapid hand insertion of tubing without threading, soldering, or compression tools, making it a practical choice for inline reducer connections on compressed-air lines, pneumatic control circuits, and fluid-transfer systems. It is especially useful in applications where tubing runs must transition between two standard metric tube sizes within a tight panel or enclosure.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure locking without threading or soldering
• Reduces from a 16 mm stem outside diameter to a 12 mm tube outside diameter in a single body
• Brass and polybutylene construction provides corrosion resistance in pneumatic and compatible fluid-handling service
• Rated to 145 psi maximum working pressure for standard compressed-air and fluid-transfer duty
• Wide service temperature range of 23 degrees F to 140 degrees F covers most indoor pneumatic environments
• RoHS compliant for use in applications with environmental material restrictions

Compatibility

Designed as an OEM-style push-to-connect reducer for metric pneumatic tubing systems using 12 mm and 16 mm outside-diameter tubing in compressed-air and compatible fluid-transfer circuits.

Installation Notes

Installation is performed by licensed pipefitters or pneumatic technicians. Depressurize and isolate the pneumatic or fluid line completely before removing any existing fitting or inserting this reducer. Ensure tubing ends are cut cleanly and squarely with a tube cutter to guarantee a proper seal in the push-to-connect mechanism. Verify that tubing outside diameters match the specified 12 mm and 16 mm sizes before insertion, and confirm the line pressure will not exceed the 145 psi rated maximum during service.