Smc Pneumatics KQ2R05-09A Plug-in Reducer Fitting 3/16 in

Product Description

The SMC PNEUMATICS KQ2R05-09A is a push-to-connect plug-in reducer tube fitting designed for pneumatic and fluid-handling systems where a quick, tool-free tube connection is required between differing tube sizes. Constructed from brass and polybutylene, it handles a maximum working pressure of 145 psi and is rated for temperatures from 23 degrees F to 140 degrees F. The fitting accepts a tube outside diameter of 3/16 inch and features a stem outside diameter of 5/16 inch, making it suitable for inline reducer applications in compressed air and compatible fluid lines. Licensed plumbers, pipefitters, and pneumatic system technicians are the typical installers.

This fitting is suited for light industrial, commercial, and OEM pneumatic plumbing applications where space-efficient, push-to-connect tube terminations are needed. The plug-in reducer style allows direct inline size transition without additional adapters or fittings. It is appropriate for use in compressed air distribution, instrumentation lines, and general fluid conveyance within its rated pressure and temperature limits. The RoHS-compliant construction makes it appropriate for projects with restricted-substance requirements.

Key Features

• Push-to-connect design allows fast, tool-free tube insertion and secure retention
• Plug-in reducer configuration transitions between tube sizes inline
• Brass and polybutylene construction for durability and chemical compatibility
• Rated to 145 psi maximum working pressure
• Temperature range of 23 degrees F to 140 degrees F
• RoHS compliant

Compatibility

Designed as an OEM-style push-to-connect reducer fitting for pneumatic and fluid-handling tubing systems with a 3/16 inch outside diameter tube connection.

Installation Notes

Installation is performed by pneumatic system technicians or licensed pipefitters. Before servicing or replacing any fitting, depressurize the line completely and verify zero pressure with a gauge before disconnecting tubing. Ensure tube ends are cut cleanly and squarely with a tube cutter to guarantee a proper seal at the push-to-connect collet. Follow applicable industry standards and local codes for pneumatic and fluid-handling installations.