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Anvil cast iron reducing tee with three FNPT ports

Anvil

Anvil 0300037603 1" x 3/4" x 1" FNPT Reducing Tee trap

SKU CH-6JM5-Z4GGH MPN 0300037603

Cast-iron reducing tee with FNPT ends connects 1 in, 3/4 in and 1 in pipe, rated 175 psi at up to 150 °F

  • TypeDrain Components
  • ASME B16.4 compliance ensures reliable piping system integration
  • FM and UL approvals confirm safety for fire-protection installations
  • Class 125 cast-iron construction withstands 175 psi at 150 °F
  • Reducing FNPT ports connect 1 in, 3/4 in and 1 in pipe sizes
  • Saturated steam rating of 125 psi suits heating and process lines

Reducing tee for cast-iron piping

This Anvil 0300037603 reducing tee connects 1-inch, 3/4-inch and 1-inch FNPT threads in a cast-iron Class 125 body. It is intended for plumbers and maintenance teams assembling or modifying drain, waste or vent systems that require a branch reduction. The fitting carries UL and FM approvals and meets ASME B16.4 dimensional requirements.

Pressure headroom and temperature limits

Rated for 175 psi at temperatures from -20 to 150 degrees F, the tee also handles saturated steam at 125 psi within the same range. These limits cover typical low-pressure hydronic and condensate return lines, but the fitting is not suited for high-pressure steam mains or process piping that exceeds the stated pressure or temperature envelope.

FNPT thread compatibility decides fit

The three female National Pipe Taper threads are the sole interface; installers must confirm that the mating pipe or fittings use matching FNPT dimensions. No solvent-weld, compression or flanged connections are provided, so systems requiring those joint types will need a different fitting.

Highlights

  • ASME B16.4 compliance ensures reliable piping system integration
  • FM and UL approvals confirm safety for fire-protection installations
  • Class 125 cast-iron construction withstands 175 psi at 150 °F
  • Reducing FNPT ports connect 1 in, 3/4 in and 1 in pipe sizes
  • Saturated steam rating of 125 psi suits heating and process lines

Specifications

BrandAnvil
Model0300037603
TypeDrain Components

Questions about this item

Will the Class 125 cast iron tee handle the pressure and temperature range of my existing steam system?

The fitting is rated 175 psi from -20 to 150 °F and 125 psi saturated steam, matching ASME B16.4 Class 125 limits.

How can I confirm the joint is sound after assembly?

Pressurise the line to the design pressure up to 175 psi and inspect the FNPT threads for leaks; the UL and FM marks indicate the casting meets the standard.

Does the package include any gaskets, sealant or extra fittings?

Only the reducing tee itself is supplied; thread sealant, pipe nipples or additional fittings must be sourced separately.

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