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Black dielectric coupling, 1-1/4 inch T-574 model, threaded metal body with dark finish

Legend Valve

Legend Valve 301-336 1-1/4" T-574 Black Dielectric Coupling

SKU CH-KZ0G-BBPTR

Connects 1-1/4" pipes with a black dielectric union that prevents galvanic corrosion

  • Dielectric design prevents galvanic corrosion between dissimilar metals
  • 1-1/4 inch T-574 black coupling fits standard plumbing connections
  • New Legend Valve 301-336 component ensures reliable system integration
  • California Proposition 65 warning discloses regulated chemical content
  • Manufacturer-direct fulfillment available for qualifying orders

Product identity

The Legend Valve 301-336 is a 1-1/4 inch T-574 black dielectric coupling designed for plumbing systems that join dissimilar metals. It prevents galvanic corrosion in water supply lines for residential and commercial installations.

Decisive specification

The dielectric union separates copper from steel or iron pipework with a non-conductive barrier that stops electro-chemical reaction. Without this isolation the joint would corrode rapidly and leak.

Installation reality

The coupling threads onto standard 1-1/4 inch pipe ends using common wrenches and pipe sealant. Over-tightening can crack the insulating sleeve, so apply firm but controlled torque and inspect the seal before pressurising the system.

Highlights

  • Dielectric design prevents galvanic corrosion between dissimilar metals
  • 1-1/4 inch T-574 black coupling fits standard plumbing connections
  • New Legend Valve 301-336 component ensures reliable system integration
  • California Proposition 65 warning discloses regulated chemical content
  • Manufacturer-direct fulfillment available for qualifying orders

Specifications

BrandLEGEND VALVE

Questions about this item

What does the 1-1/4 inch size mean for the pipe I am connecting?

The 1-1/4 inch designation matches the nominal pipe size for the union ends, so it fits piping of that same nominal diameter.

How does the dielectric feature work on this union?

The dielectric union separates dissimilar metals with an insulating barrier to reduce galvanic corrosion in the plumbing system.

What clearance do I need to install this coupling?

The union body requires enough space to thread both ends onto the pipe and to tighten the central nut that joins the two halves.

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