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Stainless steel 316 reducing coupling 4 inch by 3 inch female threads

Legend Valve

Legend Valve 416-404 Stainless Steel 316 Reducing Coupling 4 in x 3 in Female

SKU CH-89YP-YJV9Z

Stainless steel 316 reducing coupling joins 4 in and 3 in female NPT threads

  • 316 stainless steel resists corrosion in harsh environments
  • Female NPT threads on both ends simplify pipe connections
  • Reduces 4 inch to 3 inch diameter for flow adaptation
  • Legend Valve brand indicates industrial-grade manufacturing quality
  • California Proposition 65 warning discloses regulated chemical content

Legend Valve 416-404 Reducing Coupling

This Legend Valve 416-404 reducing coupling joins a 4 in female NPT pipe to a 3 in female NPT pipe. It is built for industrial plumbing systems that require a step-down in nominal pipe size. The fitting is manufactured from stainless steel 316 for corrosion resistance in demanding fluid-handling applications.

Stainless Steel 316 Material

The body is made from stainless steel 316, an alloy chosen for its resistance to chemical attack and oxidation. This material specification determines whether the coupling is suitable for the specific fluids and environmental conditions in the installation. Verify media compatibility before selecting this part for the pipeline.

Sustained Service Performance

Under continuous pressurised service the stainless steel 316 construction maintains structural integrity and leak-free threads. The coupling resists degradation from prolonged exposure to corrosive media and thermal cycling. It is designed for permanent installation in industrial piping networks where reliability over time is the primary requirement.

Highlights

  • 316 stainless steel resists corrosion in harsh environments
  • Female NPT threads on both ends simplify pipe connections
  • Reduces 4 inch to 3 inch diameter for flow adaptation
  • Legend Valve brand indicates industrial-grade manufacturing quality
  • California Proposition 65 warning discloses regulated chemical content

Specifications

BrandLEGEND VALVE

Questions about this item

What does the 316 stainless steel rating mean once the coupling is installed in a piping system?

The 316 alloy provides higher corrosion resistance than standard grades, making the fitting suitable for harsh chemical or marine environments.

How does the FNPT thread standard affect the sealing method on this 4 in x 3 in reducing coupling?

FNPT threads are tapered, so they require thread sealant or tape to create a leak-tight joint when assembled.

What clearance is needed to thread the 4 inch female end onto a pipe?

Enough space to rotate the coupling fully onto the male pipe threads without obstruction from nearby walls or fittings.

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