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Brass press-to-threaded adapter with hexagonal body

Legend Valve

Legend Valve 450-794P 1-1/2 x 1-1/4 Press x MNPT Adapter

SKU CH-J47B-DZ4A4

Press-to-male-thread adapter connects 1-1/2" press to 1-1/4" NPT for plumbing systems

  • Press-to-thread transition joins 1-1/2 and 1-1/4 lines
  • Male NPT end connects to standard threaded fittings
  • Legend Valve brand backs professional plumbing installs
  • New condition ensures clean, undamaged sealing surfaces
  • California Prop 65 notice flags chemical disclosure requirements

Product Identity

The Legend Valve 450-794P is a press-to-male-NPT reducer adapter built for plumbing professionals who need to transition from a 1-1/2 inch press connection down to a 1-1/4 inch male pipe thread. It fits directly into press-fit piping systems without soldering or threading the larger end.

Thermals Noise Power

This mechanical fitting has no electrical components, so it produces no heat, draws no power and creates no operational noise. Its only thermal consideration is the temperature rating of the piping system it joins, which is determined by the pipe and press tool specifications.

Build Integration

The adapter requires a compatible press tool and jaw set to seat the 1-1/2 inch press end, while the 1-1/4 inch MNPT end accepts standard female-threaded fittings or valves. It frees installers from sweating copper or cutting threads on the larger diameter, reducing labour time on retrofit or new-work jobs. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Highlights

  • Press-to-thread transition joins 1-1/2 and 1-1/4 lines
  • Male NPT end connects to standard threaded fittings
  • Legend Valve brand backs professional plumbing installs
  • New condition ensures clean, undamaged sealing surfaces
  • California Prop 65 notice flags chemical disclosure requirements

Specifications

BrandLEGEND VALVE

Questions about this item

How do I install the 1-1/2 x 1-1/4 Press x MNPT adapter and what step is often missed?

Cut the tube square, deburr inside and out, mark the insertion depth, press with a calibrated tool, then thread the MNPT end using pipe sealant; the step most often missed is verifying the press depth mark after the press.

What maintenance or replacement will the 1-1/2 x 1-1/4 Press x MNPT adapter need later?

Inspect the pressed joint and MNPT threads periodically for leaks or corrosion; replace the adapter if the press seal shows moisture or if threads are damaged during disassembly.

What limit appears first on the 1-1/2 x 1-1/4 Press x MNPT adapter under sustained pressure and temperature cycling?

The pressed seal typically reaches its fatigue limit before the MNPT threads, so watch for weeping at the press joint during extended thermal cycling.

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