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Stainless steel reducing coupling with tapered female threads

Legend Valve

Legend Valve 404-393 304 Stainless Steel Reducing Coupling

SKU CH-REDW-GC8EW

304 stainless steel reducing coupling joins 2-1/2 inch and 1 inch FNPT threads

  • 304 stainless steel resists corrosion in demanding plumbing systems
  • Reducing coupling joins 2-1/2" to 1" FNPT threads for pipe transitions
  • Legend Valve 404-393 model ensures reliable industrial-grade performance
  • New condition guarantees factory-fresh quality for immediate installation
  • California Proposition 65 warning notes chemical exposure risks for safety awareness

304 Stainless Steel Reducing Coupling

The Legend Valve 404-393 is a 304 stainless steel reducing coupling designed for industrial plumbing systems. It connects female NPT threads of different diameters in a straight line. The 304 alloy provides corrosion resistance for water, oil and gas lines. This new fitting meets industrial material specifications.

Installers joining 2-1/2" to 1" FNPT

This coupling suits installers who need to transition from a 2-1/2 inch female pipe thread down to a 1 inch female pipe thread using 304 stainless steel. It is not for systems requiring a different alloy, a male thread end or a larger step-down ratio. Buyers needing press-fit, sweat or flanged connections should look elsewhere.

Pressure containment within 304 alloy limits

The fitting handles pressures rated for standard 304 stainless steel couplings in the stated size combination. It runs out when the application exceeds the pressure class of the 304 material or requires a reducing step not matching the 2-1/2" x 1" configuration. Chemical compatibility is limited to media suitable for 304 stainless steel.

Highlights

  • 304 stainless steel resists corrosion in demanding plumbing systems
  • Reducing coupling joins 2-1/2" to 1" FNPT threads for pipe transitions
  • Legend Valve 404-393 model ensures reliable industrial-grade performance
  • New condition guarantees factory-fresh quality for immediate installation
  • California Proposition 65 warning notes chemical exposure risks for safety awareness

Specifications

BrandLEGEND VALVE

Questions about this item

What pipe size must I already have to connect this 2-1/2" x 1" reducing coupling?

You need a 2-1/2 inch female NPT pipe on one side and a 1 inch female NPT pipe on the other to thread directly onto the coupling.

Can I thread this 304 stainless steel coupling onto older galvanised or brass fittings without issues?

Yes, the FNPT threads are standard taper threads, so they mate with existing galvanised, brass or black iron fittings of the same nominal sizes.

How do I confirm the 404-393 coupling is sealed correctly after installation?

Pressurise the line and check both FNPT joints for leaks; a properly sealed coupling shows no weeping or pressure drop at the threads.

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