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Stainless steel reducing coupling with threaded ends

Legend Valve

Legend Valve 416-394 Reducing Coupling 2-1/2 X 1-1/4 SS316

SKU CH-WP02-BCEKX

316 stainless steel reducing coupling connects 2-1/2 inch and 1-1/4 inch FNPT threads for corrosion-resistant piping

  • SS316 alloy resists corrosion in harsh chemical environments
  • FNPT threads on both ends simplify pipe connections
  • Reducing design joins 2-1/2 inch to 1-1/4 inch pipe sizes
  • Legend Valve brand signals industrial-grade reliability
  • New condition ensures full factory performance from first use

Application & Purpose

The Legend Valve 416-394 is a 316 stainless steel reducing coupling designed to join two female NPT pipes of different diameters. It suits industrial plumbing systems that require corrosion-resistant transitions between 2-1/2 inch and 1-1/4 inch threaded connections.

Upgrade Path

This coupling replaces carbon steel or lower-grade stainless fittings where chemical exposure or sanitary standards demand 316 alloy performance. The jump is worth it when the media handled would degrade lesser materials or when regulatory compliance requires the higher molybdenum content of 316 stainless.

Interface Limits

The FNPT x FNPT threads seal via taper engagement and require compatible thread sealant or tape for leak-free joints. The 316 stainless construction resists many acids and chlorides but is not immune to all chemical attack; verify media compatibility before installation. California Proposition 65 warnings apply.

Highlights

  • SS316 alloy resists corrosion in harsh chemical environments
  • FNPT threads on both ends simplify pipe connections
  • Reducing design joins 2-1/2 inch to 1-1/4 inch pipe sizes
  • Legend Valve brand signals industrial-grade reliability
  • New condition ensures full factory performance from first use

Specifications

BrandLEGEND VALVE

Questions about this item

What size pipes does the 2-1/2" x 1-1/4" reducing coupling connect?

The coupling joins a 2-1/2 inch female NPT pipe to a 1-1/4 inch female NPT pipe in a straight line.

How do I install the 316 stainless steel FNPT reducing coupling without damaging the threads?

Apply PTFE tape or pipe dope to the male threads, hand-tighten, then turn one to two full turns with a wrench; avoid over-tightening which can crack the fitting.

When should the SS316 reducing coupling be inspected or replaced in a corrosive system?

Check yearly for pitting, crevice corrosion or thread galling; replace if leaks appear at the joint or visible wall loss is found.

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