Smc Pneumatics KQ2H05-00A Union Straight Tube Fitting

Product Description

The SMC PNEUMATICS KQ2H05-00A is a push-to-connect union straight tube fitting designed for inline tube-to-tube connections in pneumatic and fluid handling systems. Built with a brass and polybutylene body, it accepts 3/16 inch outside diameter tubing and supports a maximum working pressure of 145 psi. The push-to-connect design allows for fast, tool-free tube insertion and secure retention without ferrules or compression sleeves. This fitting is installed by HVAC technicians, plumbers, and pneumatic system technicians wherever a straight inline union connection is needed in a compact form factor.

This fitting is suited for light industrial, commercial, and residential pneumatic lines, as well as fluid transfer tubing applications operating within a temperature range of 23 degrees F to 140 degrees F. Its compact overall length of approximately 1.09 inches makes it practical in tight panel or equipment installations. The KQ2H05-00A is commonly used in control panels, air lines, and instrumentation tubing runs where quick assembly and reliable sealing at moderate pressures are required.

Key Features

• Push-to-connect design enables fast, tool-free tube insertion and secure retention
• Brass and polybutylene construction for durability in pneumatic and fluid service
• Accepts 3/16 inch OD tubing with a straight union configuration
• Rated to 145 psi maximum working pressure
• RoHS compliant for use in environmentally sensitive applications
• Operating temperature range of 23 degrees F to 140 degrees F

Compatibility

Designed as an OEM-style inline union fitting for pneumatic and fluid transfer systems using 3/16 inch outside diameter tubing.

Installation Notes

Install by fully inserting clean-cut tubing ends into each port until the tubing seats against the internal stop. Ensure the tube end is cut square and free of burrs before insertion to maintain a proper seal. Shut off and depressurize the system completely before disconnecting or replacing fittings. Verify that tubing material and system pressure do not exceed the rated maximums for this fitting.