Smc Pneumatics KQ2R23-04A Plug-in Reducer Fitting 145 Psi

Product Description

The SMC PNEUMATICS KQ2R23-04A is a push-to-connect plug-in reducer tube fitting constructed from brass with a polybutylene tube interface. It is designed to join two pneumatic lines of different outside diameters with a simple push-in connection, eliminating the need for tools or thread sealant at the tube connection point. Rated to a maximum working pressure of 145 psi and suitable for operating temperatures from 23 degrees F to 140 degrees F, this fitting is a compact, field-ready component used in compressed air and pneumatic control plumbing across industrial and commercial applications.

This reducer fitting is used in pneumatic tubing systems where a transition between tube sizes is required. It is typically installed on compressed air distribution lines, pneumatic actuator circuits, and control system plumbing in manufacturing, automation, and mechanical service environments. The push-to-connect design allows for fast, repeatable connections without secondary crimping or soldering tools, making it well suited for technicians assembling or servicing pneumatic control panels and distribution manifolds.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure retention
• Brass body construction for durability in compressed air service
• Rated to 145 psi maximum working pressure
• Operating temperature range of 23 degrees F to 140 degrees F
• Tube outside diameter of 3.20 mm with a stem outside diameter of 4.00 mm for size reduction
• RoHS compliant construction

Compatibility

Designed as an OEM-style push-to-connect plug-in reducer fitting for pneumatic tubing systems requiring a transition between compatible tube outside diameters in compressed air service applications.

Installation Notes

Installation is performed by qualified pneumatic technicians or pipefitters. Depressurize and lock out the pneumatic circuit completely before removing or installing any tube fittings. Ensure tubing ends are cut cleanly and squarely with no burrs before insertion into the push-to-connect collet. Verify that tube outside diameter matches the fitting specification before assembly to ensure a leak-free connection.