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Black polypropylene reducing coupling with FNPT threads on both ends

Banjo

Banjo RC200-125 2" x 1-1/4" FNPT Reducing Coupling Sch 80 trap

SKU CH-9W9G-EG0Q2 MPN RC200-125

Schedule 80 polypropylene reducing coupling joins 2 in FNPT to 1-1/4 in FNPT at 150 psi

  • TypeDrain Components
  • MaterialHAWA
  • ColorBlack
  • Reduces pipe size from 2 in to 1-1/4 in FNPT
  • Schedule 80 polypropylene handles 150 psi working pressure
  • Operates from -20 to 150 degrees F
  • Black HAWA material resists corrosion and chemicals
  • Female NPT threads on both ends for secure seal

Reducing Coupling for Schedule 80 Systems

This Banjo RC200-125 reducing coupling connects a 2 inch FNPT pipe to a 1-1/4 inch FNPT pipe in black polypropylene. It is rated for Schedule 80 service with a maximum pressure of 150 psi. The fitting handles temperatures from -20 to 150 degrees Fahrenheit. Plumbers and maintenance teams use it to transition pipe diameters in industrial fluid lines.

Replaces Mismatched Threaded Transitions

Install this coupling when a system requires a direct step-down between the two specified FNPT sizes without adding bushings or extra fittings. The Schedule 80 wall thickness matches heavy-duty piping so the joint retains the same pressure rating as the surrounding pipe. The jump is worth it when leak paths must be minimised and a single compact fitting replaces a multi-piece assembly.

Limited to FNPT Threads and Polypropylene Chemistry

The connection relies on tapered FNPT threads sealed with tape or paste, so it is not suited for flanged, compression or welded pipe systems. Polypropylene resists many acids and bases but is attacked by strong oxidisers and some aromatic solvents. Verify chemical compatibility and thread standard before specifying this coupling in a new installation.

Highlights

  • Reduces pipe size from 2 in to 1-1/4 in FNPT
  • Schedule 80 polypropylene handles 150 psi working pressure
  • Operates from -20 to 150 degrees F
  • Black HAWA material resists corrosion and chemicals
  • Female NPT threads on both ends for secure seal

Specifications

TypeDrain Components
MaterialHAWA
ColorBlack
BrandBanjo
ModelRC200-125

Questions about this item

What thread size does the 2 in x 1-1/4 in FNPT reducing coupling require for a watertight seal?

Both ends use FNPT threads; wrap the male threads with PTFE tape or pipe dope, then tighten until snug plus one to two turns — over-tightening cracks the polypropylene body.

How do you install the Schedule 80 polypropylene coupling without cracking it?

Hand-tighten the male fittings into each FNPT port, then finish with a strap wrench for one to two extra turns; do not use a pipe wrench directly on the black coupling.

When should the reducing coupling be replaced given its 150 psi rating and -20 to 150 °F range?

Inspect yearly; replace if you see stress whitening, cracks at the thread roots, or any weeping at the joint — especially after freeze cycles or sustained pressure near 150 psi.

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