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Cast iron threaded flange, dark metal finish, four bolt holes

Anvil

Anvil 0308002401 1-1/4" Cast Iron Threaded Flange trap

SKU CH-JY4M-P4SWM MPN 0308002401

A 1-1/4" cast-iron threaded flange rated to 175 psi and 150 °F, drilled with four bolt holes for secure drain connections

  • TypeDrain Components
  • Cast iron construction resists corrosion for long service life
  • Class 125 rating handles 175 psi at temperatures up to 150 °F
  • Threaded flange with faced and drilled bolt pattern simplifies installation
  • Meets ASME B 16.4 and UL/FM standards for code compliance
  • 1-1/4 inch FNPT connection fits standard piping systems

1-1/4" Cast Iron Threaded Flange

The Anvil 0308002401 is a Class 125 cast iron pipe fitting with a 1-1/4 inch flanged by FNPT connection. It is faced and drilled with four bolt holes on a 4 5/8 inch outside diameter for secure alignment. The component meets ASME B 16.4 and UL FM standards for pressure piping systems. It suits installers needing a durable, code-compliant flange for threaded pipe assemblies.

Upgrading from worn or non-standard flanges

Replace corroded, cracked or mismatched flanges that leak at the bolt circle or thread interface. The jump is worth it when the system operates up to 175 psi at temperatures between -20 and 150 degrees F or handles saturated steam at 125 psi. Its standardised drilling pattern eliminates field rework and ensures gasket sealing on the first make-up.

For commercial and industrial steam or water lines

This flange suits maintenance crews and pipefitters working on Class 125 systems that require ASME B 16.4 compliance. It is not for installations needing a larger bore, a different pressure class, a welded connection or a material other than cast iron. Buyers requiring stainless steel, higher temperature ratings or metric dimensions should look elsewhere.

Highlights

  • Cast iron construction resists corrosion for long service life
  • Class 125 rating handles 175 psi at temperatures up to 150 °F
  • Threaded flange with faced and drilled bolt pattern simplifies installation
  • Meets ASME B 16.4 and UL/FM standards for code compliance
  • 1-1/4 inch FNPT connection fits standard piping systems

Specifications

TypeDrain Components
BrandAnvil
Model0308002401

Questions about this item

What bolt-hole pattern does the 1-1/4" cast iron flange use?

The flange is faced and drilled to ASME B16.4 with four bolt holes on a 4 5/8 in outside diameter.

Which pipe-thread sealant works with the Class 125 FNPT connection?

Use PTFE tape or pipe dope rated for 175 psi at 150 °F; tighten until hand-tight plus one to two turns to avoid cracking the cast iron.

When should the gasket between this flange and the mating pipe be replaced?

Replace the gasket whenever the joint is broken or if steam pressure exceeds 125 psi, since the rating covers -20 °F to 150 °F saturated steam.

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