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Value Brand

Value Brand 2" x 1-1/4" FNPT Red Brass Reducing Coupling

SKU CH-GHJ0-FFVNB

Red brass reducing coupling joins 2 in and 1-1/4 in FNPT threads, rated to 125 psi from -20 °F to 400 °F per ANSI B1.20.1, ASME B16.15, ASTM B584

  • TypeOther
  • Red brass construction resists corrosion in potable water systems
  • Class 125 rating handles 125 psi working pressure
  • FNPT threads seal to ANSI B 1.20.1 standard
  • Operates from -20 °F to 400 °F per ASME B 16.15
  • ASTM B584 alloy meets material quality requirements

Red Brass Reducing Coupling

This Value Brand fitting joins a 2 inch FNPT pipe to a 1 1/4 inch FNPT pipe in potable water or hydronic systems. The red brass body meets ANSI B1.20.1, ASME B16.15 and ASTM B584 standards for thread form and alloy quality. It is sold new for residential and light commercial plumbing repairs.

Thermal and Pressure Limits

The coupling withstands a maximum pressure of 125 psi across a temperature range of -20 to 400 degrees Fahrenheit. Red brass construction resists dezincification and stress corrosion cracking in aggressive water conditions. No external power or active cooling is required for normal operation.

Upgrade Path and Fit

This part replaces a worn or leaking brass or bronze reducing coupling of the same Class 125 rating and thread specification. The jump is worth it when the existing fitting shows thread damage, corrosion or cannot hold the required 125 psi service pressure. It does not suit systems that demand a higher pressure class or a different thread standard.

Highlights

  • Red brass construction resists corrosion in potable water systems
  • Class 125 rating handles 125 psi working pressure
  • FNPT threads seal to ANSI B 1.20.1 standard
  • Operates from -20 °F to 400 °F per ASME B 16.15
  • ASTM B584 alloy meets material quality requirements

Specifications

BrandZORO SELECT
TypeOther

Questions about this item

How do I install the 2" x 1-1/4" FNPT reducing coupling without damaging the red brass threads?

Clean both male threads, wrap PTFE tape clockwise three to four turns or apply pipe thread sealant, thread the coupling on by hand until snug, then tighten one to two turns with a wrench on the hex flats; over-tightening stretches the red brass and can crack the fitting.

What maintenance will this Class 125 red brass coupling need over time?

Inspect joints annually for green patina or weeping; re-apply thread sealant if seepage appears, and replace the coupling if dezincification leaves a powdery surface or threads no longer seal at 125 psi.

What is the first limit reached when this fitting runs continuously at the 400 °F temperature ceiling?

The 125 psi pressure rating is the governing limit; at 400 °F the red brass material remains within ASTM B584 scope, so pressure — not temperature — dictates the safe operating envelope.

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