Smc Pneumatics KQ2H07-00A Union Straight Tube Fitting 1/4 in

Product Description

The SMC PNEUMATICS KQ2H07-00A is a push-to-connect union straight tube fitting designed for quick, tool-free connections in pneumatic and fluid-transfer systems. Built with a brass and polybutylene construction, it accepts 1/4-inch outside diameter tubing and handles a maximum working pressure of 145 psi. The straight union configuration joins two tube runs in-line without requiring fittings on both sides of a component. HVAC technicians, pneumatic system installers, and industrial service pros use this fitting where fast, reliable tube connections are needed without soldering or threading.

This fitting is suited for pneumatic control lines, instrumentation tubing, and light fluid-transfer applications in both residential and light commercial settings. The push-to-connect mechanism allows a technician to insert tubing and achieve a secure, leak-resistant seal in seconds. With a rated temperature range of 23 degrees F to 140 degrees F, it is appropriate for climate-controlled environments and standard indoor pneumatic circuits. It ships individually and is a direct single-unit replacement for worn or damaged inline union fittings of the same tube size.

Key Features

• Push-to-connect design allows tool-free tube insertion and fast field installation
• Straight union configuration joins two 1/4-inch OD tube runs in-line
• Brass and polybutylene construction for durability in pneumatic service
• Rated to 145 psi maximum working pressure
• Operating temperature range of 23 degrees F to 140 degrees F
• RoHS compliant

Compatibility

Designed as an OEM-style replacement union straight fitting for pneumatic systems using 1/4-inch outside diameter push-to-connect tubing.

Installation Notes

Installation is typically performed by qualified pneumatic or HVAC technicians. Always depressurize and lock out the pneumatic circuit before removing or installing fittings. Ensure tubing is cut cleanly and squarely with no burrs before inserting into the fitting to achieve a proper seal. Verify that the tubing outside diameter matches the 1/4-inch rating of this fitting before installation.