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Brass dielectric union with threaded steel nut, 1-1/2 inch size

Legend Valve

Legend Valve 301-307 1-1/2" T-572 dielectric coupling

SKU CH-FWYT-W5XKJ

A 1-1/2" T-572 dielectric union that separates dissimilar metals to prevent galvanic corrosion in plumbing systems

  • 1-1/2" dielectric union blocks galvanic corrosion between dissimilar metals
  • T-572 specification ensures reliable sealing in plumbing installations
  • Legend Valve branding confirms manufacturer-sourced component quality
  • New condition guarantees unused, factory-fresh fitting for immediate installation
  • California Proposition 65 warning discloses regulated chemical content for compliance awareness

Legend Valve 301-307 dielectric union

The Legend Valve 301-307 is a 1-1/2" T-572 dielectric union designed for plumbing installations. It connects dissimilar metal piping to prevent galvanic corrosion in water supply systems. Professional plumbers and maintenance technicians use it on residential and commercial pipework where copper meets steel.

T-572 dielectric specification

The T-572 designation identifies the union's dielectric construction that electrically isolates joined metals. This single specification determines whether the fitting matches the pipe material and corrosion-protection requirements of the job. Without this rating the connection would allow electrolytic deterioration.

1-1/2 inch nominal pipe size

The union fits 1-1/2 inch nominal pipe threads and handles standard potable water pressures in that size range. It provides reliable service for hot and cold domestic supply lines up to typical residential flow demands. Larger diameter mains or high-pressure industrial loops exceed its intended capacity.

Highlights

  • 1-1/2" dielectric union blocks galvanic corrosion between dissimilar metals
  • T-572 specification ensures reliable sealing in plumbing installations
  • Legend Valve branding confirms manufacturer-sourced component quality
  • New condition guarantees unused, factory-fresh fitting for immediate installation
  • California Proposition 65 warning discloses regulated chemical content for compliance awareness

Specifications

BrandLEGEND VALVE

Questions about this item

How does the 1-1/2 inch size affect pipe compatibility?

The 1-1/2 inch nominal size matches standard copper or steel pipe of the same diameter for direct sweat or threaded connections.

What thread standard does the T-572 union use?

The T-572 designation indicates NPT threads on the steel side and a sweat end on the copper side for US plumbing systems.

What clearance is needed to install this dielectric union?

Allow enough length for the union body plus the nut and tailpiece; the 1-1/2 inch size typically requires several inches of straight pipe run.

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