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Bronze insert coupling with barbed ends and hexagonal centre

Legend Valve

Legend Valve 312-166 1-1/4 inch bronze insert coupling

SKU CH-SZVM-QD58W

A 1-1/4 inch bronze insert coupling for joining pipe sections in plumbing systems

  • Bronze construction resists corrosion for durable plumbing connections
  • 1-1/4 inch insert coupling joins pipes securely in residential systems
  • Legend Valve brand delivers reliable fitting performance for installers
  • California Proposition 65 warning indicates chemical safety awareness required
  • Model 312-166 identifies this specific bronze insert coupling configuration

Product Identity

The Legend Valve 312-166 is a 1-1/4 inch bronze insert coupling designed for plumbing systems. It joins two sections of compatible pipe using a barbed insert design that secures inside the pipe bore. The fitting suits installers who need a corrosion-resistant bronze component for water or fluid transfer lines.

Installation Notes

The coupling installs by pushing the barbed ends into the pipe and securing them with clamps or crimp rings appropriate for the tubing material. Leaks typically occur when the pipe is not cut squarely, when the insert is not fully seated, or when the clamp is positioned over the barbs instead of behind them. Bronze resists galling but requires clean pipe ends for a reliable seal.

Critical Specification

The 1-1/4 inch nominal size is the single dimension that determines whether this coupling matches the pipe being joined. California Proposition 65 warnings indicate the fitting contains chemicals known to cause cancer and reproductive harm, which may affect material suitability for potable water systems depending on local code requirements.

Highlights

  • Bronze construction resists corrosion for durable plumbing connections
  • 1-1/4 inch insert coupling joins pipes securely in residential systems
  • Legend Valve brand delivers reliable fitting performance for installers
  • California Proposition 65 warning indicates chemical safety awareness required
  • Model 312-166 identifies this specific bronze insert coupling configuration

Specifications

BrandLEGEND VALVE

Questions about this item

How can I verify the 1-1/4 inch bronze insert coupling is installed correctly?

Check that the coupling sits flush on the pipe ends with no visible gaps, then pressurise the line and inspect for leaks at both joints.

What comes with the Legend Valve 312-166 and what must I supply?

The box contains the bronze insert coupling only; you will need compatible pipe, thread sealant or tape, and appropriate wrenches for assembly.

Which size of the Legend Valve bronze insert coupling should I select?

Choose the 1-1/4 inch version (model 312-166) when your piping system uses that nominal diameter; other sizes are different model numbers.

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