Smc Pneumatics KQ2L23-00A Push-to-connect Union Fitting

Product Description

The SMC PNEUMATICS KQ2L23-00A is a push-to-connect union tube fitting designed for quick, tool-free connection of pneumatic tubing in compressed air and fluid control systems. Constructed from brass and polybutylene, this union fitting handles a maximum working pressure of 145 psi and operates across a temperature range of 23 degrees F to 140 degrees F. The push-to-connect design allows technicians to make secure, leak-resistant tube joints without threading, crimping, or soldering. It is sized for tubing with a 3.20 mm outside diameter and is RoHS compliant, making it suitable for use in environments with material restriction requirements.

This fitting is used in pneumatic plumbing and fluid distribution lines where fast, repeatable connections are needed. Typical applications include inline tube unions on compressed air systems, light industrial fluid lines, and control tubing runs in HVAC or automation equipment. It suits both residential and light commercial system installations where small-diameter tubing transitions or repairs are required.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure retention
• Rated to 145 psi maximum working pressure
• Compatible with 3.20 mm outside diameter tubing
• Brass and polybutylene construction for corrosion resistance and durability
• Operates from 23 degrees F to 140 degrees F
• RoHS compliant for use in restricted-material environments

Compatibility

Designed as an OEM-style replacement or direct-install union fitting for pneumatic and fluid control tubing systems using 3.20 mm outside diameter tubing rated for push-to-connect style connections.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or pneumatic systems technician. Depressurize and isolate the line before removing or installing any fitting. Ensure tubing ends are cut square and deburred before insertion to achieve a proper seal. Do not exceed the rated working pressure or temperature limits during system operation.