Legris 3106 08 00 Union Tube Fitting 5/16 in Od

Product Description

The LEGRIS 3106 08 00 is a push-to-connect union tube fitting designed for tube-to-tube connections in pneumatic and fluid handling systems. It accepts 5/16 inch outside diameter tubing and is constructed from nylon, making it a lightweight, corrosion-resistant choice for low-pressure plumbing, pneumatic control lines, and instrumentation runs. With a rated working pressure of 290 psi, this union fitting suits a range of industrial and commercial applications. Installation requires no tools for tube insertion — the push-to-connect mechanism locks and seals the tube end on contact. Plumbers, pipefitters, and instrumentation technicians are the typical installers.

This fitting is suited for tube-to-tube union connections in pneumatic control systems, process lines, and fluid distribution circuits where a straight, in-line connection between two same-diameter tubes is required. Its nylon body is compatible with many common pneumatic tubing materials used in light industrial and OEM equipment environments. The compact form factor allows use in tight panel or cabinet installations where metal fittings would add unnecessary weight.

Key Features

• Push-to-connect design — no tools required for tube insertion or basic assembly
• 5/16 inch OD tube compatibility for standard pneumatic and fluid tubing
• 290 psi working pressure rating
• Nylon construction — lightweight and corrosion-resistant
• Straight union configuration for in-line tube-to-tube connections

Compatibility

Designed as an OEM-style replacement or direct-install union fitting for push-to-connect pneumatic and fluid systems using 5/16 inch outside diameter tubing.

Installation Notes

Installation is typically performed by pipefitters, plumbers, or instrumentation technicians. Before servicing any line, depressurize the system fully and verify residual pressure is at zero before disconnecting or inserting tube ends. Ensure tubing ends are cut cleanly and squarely with a tubing cutter — ragged or angled cuts can compromise the push-to-connect seal. Verify the tube is fully seated in the fitting body before returning the system to service.