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Watts LF3006 dielectric straight steel coupling, zinc plated galvanized finish, 1-1/4 inch threaded female ends

Watts

Watts LF3006 Dielectric Straight Steel Threaded 1-1/4

SKU CH-VZDW-DK9DG

Dielectric straight coupling joins 1-1/4 inch threaded steel pipe while preventing galvanic corrosion, rated to 250 psi and 33 to 180 degrees F

  • Prevents galvanic corrosion with dielectric polysulfone insulator
  • Handles up to 250 psi maximum operating pressure
  • Operates reliably from 33 to 180 degrees F
  • Durable zinc-plated galvanized steel construction
  • Threaded 1-1/4 inch female connections for secure fit

Watts LF3006 Dielectric Straight Coupling

The Watts LF3006 is a dielectric straight coupling designed to connect dissimilar metal piping while preventing galvanic corrosion. Its zinc-plated galvanized steel body with black finish suits residential and commercial plumbing systems requiring a 1-1/4 inch threaded connection. Installers use it where copper, brass, or steel lines meet to extend system life.

Replaces Direct Metal-to-Metal Threaded Joints

This fitting replaces a standard straight coupling when the pipeline joins two different metals. The internal polysulfone insulator and NBR gasket break the electrical path that drives corrosion at the joint. The upgrade is worth it whenever local code or engineering practice calls for dielectric separation on 1-1/4 inch lines carrying potable or hydronic water.

Sustained Pressure and Temperature Performance

Rated for 250 psi maximum operating pressure, the coupling maintains its seal continuously across a 33 to 180 degrees Fahrenheit range. The steel nut and body resist deformation under long-term static loads, while the polysulfone insulator retains dielectric strength without softening at the upper temperature limit. The 2-3/4 inch overall length stays stable through thermal cycling.

Highlights

  • Prevents galvanic corrosion with dielectric polysulfone insulator
  • Handles up to 250 psi maximum operating pressure
  • Operates reliably from 33 to 180 degrees F
  • Durable zinc-plated galvanized steel construction
  • Threaded 1-1/4 inch female connections for secure fit

Specifications

BrandWATTS

Questions about this item

What thread size and overall length does the LF3006 fitting need to connect?

It uses 1-1/4 inch female threads on both ends and measures 2-3/4 inches overall length.

How is the LF3006 installed, and what step is often missed?

Thread it onto 1-1/4 inch male pipe ends; the step often missed is confirming the NBR gasket seats fully before tightening.

When will the insulator or gasket on the LF3006 need replacement?

Replace the polysulfone insulator or NBR gasket if you see leakage, corrosion at the joint, or after prolonged exposure near the 180 degree F limit.

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