Smc Pneumatics KCJ06-99 Check Adapter Fitting 145 Psi

Product Description

The SMC PNEUMATICS KCJ06-99 is a push-to-connect check adapter fitting designed for pneumatic and fluid control line applications. Built from brass with polybutylene construction, this fitting allows one-directional flow control with a simple push-to-connect interface that eliminates the need for additional tools during tube insertion. It is rated for a maximum working pressure of 145 psi and accommodates a 6 mm tube outside diameter. The overall installed length is approximately 54 mm. This type of fitting is typically installed by licensed plumbers, pipefitters, or pneumatic system technicians working on compressed air, water, or compatible fluid distribution systems.

The KCJ06-99 is suited for residential and light commercial pneumatic or fluid line assemblies where a compact inline check function is required at a tube junction. Its push-to-connect design makes it a practical choice for panel assemblies, instrumentation lines, and control system tubing runs. The fitting meets RoHS compliance standards, making it appropriate for applications where restricted substance requirements apply.

Key Features

• Push-to-connect interface allows fast, tool-free tube insertion and secure retention
• Integrated check function prevents backflow in the connected line
• Brass and polybutylene construction provides corrosion resistance for pneumatic and compatible fluid service
• Rated to 145 psi maximum working pressure
• Accepts 6 mm outside diameter tubing on the push-to-connect end
• RoHS compliant for use in restricted-substance environments

Compatibility

Designed as an OEM-style push-to-connect check adapter for pneumatic control and fluid distribution systems using 6 mm outside diameter tubing rated within the 145 psi working pressure range.

Installation Notes

Installation of this fitting should be performed by a qualified plumber, pipefitter, or pneumatic systems technician. Before servicing or installing any fitting in a pressurized line, depressurize and isolate the system completely. Ensure the tube end is cut cleanly and squarely with no burrs before inserting into the push-to-connect port to achieve a proper seal. Verify that system operating pressure does not exceed the 145 psi rated maximum for this fitting.