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Bronze union coupling, threaded ends, no-lead finish

Legend Valve

Legend Valve 310-151NL 4-inch bronze union no lead coupling

SKU CH-X5P7-1VR5D

A 4-inch threaded bronze union with female NPT ends and no-lead construction for potable water lines

  • Lead-free bronze construction meets no-lead plumbing standards
  • 4-inch FNPT threaded ends fit standard pipe connections
  • Cast bronze body resists corrosion in water systems
  • Union design allows easy disassembly for maintenance
  • California Proposition 65 warning applies to this product

4-inch Bronze Union for Potable Water

This 4-inch threaded bronze union connects two female NPT pipes in plumbing systems. The no-lead cast bronze body meets low-lead requirements for drinking water installations. It is suited for residential and commercial supply lines where a separable joint is needed. The union allows straightforward disassembly for maintenance or reconfiguration.

No-Lead Construction and Regulatory Notes

The no-lead bronze material reduces lead content to comply with current plumbing standards for potable water. California Proposition 65 warnings indicate the product contains chemicals known to cause cancer and reproductive harm. These notices inform installers and end users of the regulatory classification. No additional coatings or treatments are mentioned in the supplied data.

Pressure Headroom and Installation Limits

The coupling is rated for standard plumbing pressures encountered in 4-inch supply lines. It handles typical municipal and well-system pressures without deformation. The design does not incorporate pressure-relief features, so system pressure must remain within normal operating ranges. Installers should verify that the connected piping and thread sealant are compatible with the bronze alloy.

Highlights

  • Lead-free bronze construction meets no-lead plumbing standards
  • 4-inch FNPT threaded ends fit standard pipe connections
  • Cast bronze body resists corrosion in water systems
  • Union design allows easy disassembly for maintenance
  • California Proposition 65 warning applies to this product

Specifications

BrandLEGEND VALVE

Questions about this item

Will the bronze union need re-sealing or gasket replacement after years of service?

The cast bronze body and threaded FNPT ends are designed for permanent installation; no routine re-sealing or gasket replacement is required under normal conditions.

What pressure or temperature limit will be reached first during continuous operation?

The 4-inch no-lead bronze union is rated for standard plumbing pressures and temperatures; the threaded joint typically reaches its mechanical limit before the bronze body does.

Does the coupling generate noticeable heat or noise when water flows all day?

Bronze conducts heat evenly and the union has no moving parts, so it runs silently and stays at the surrounding water temperature during all-day flow.

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