We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Malleable iron merchant coupling, 2-1/2 inch FNPT, dark metal finish

Anvil

Anvil 0320200223 malleable iron merchant coupling class 150 2-1/2 in FNPT

SKU CH-4A8J-V9GFN MPN 0320200223

Connects 2-1/2 in FNPT pipes with Class 150 malleable iron rated to 300 psi at 150 °F and 150 psi saturated steam at 350 °F, meeting ASME B16.3

  • TypeDrain Components
  • Malleable iron construction resists corrosion for long service life
  • Class 150 rating handles 300 psi at 150 °F for reliable pressure performance
  • FNPT threads enable direct connection to standard NPT pipe without adapters
  • UL and FM approved to ASME B16.3 for code-compliant installations
  • Operating range from -20 °F to 350 °F suits steam and water systems

Anvil Malleable Iron Coupling 2-1/2 in

This new Anvil merchant coupling connects 2-1/2 inch FNPT threaded pipe in plumbing and drainage systems. The fitting is cast from malleable iron and rated to Class 150 for standard pressure service. It carries UL and FM markings and meets ASME B16.3 dimensional requirements.

Suitable for standard water steam and air lines

Installers needing a 300 psi pressure rating at 150 °F or a 150 psi saturated steam rating at 350 °F will find this coupling fits the specification. The temperature range spans -20 °F to 350 °F. It is not intended for systems that exceed these pressure or temperature limits or that require a different connection type.

Class 150 pressure rating decides fit

The single figure that determines whether this part belongs in the assembly is the Class 150 designation with its 300 psi maximum at 150 °F. Verify the design pressure and operating temperature against that rating before selecting this coupling.

Highlights

  • Malleable iron construction resists corrosion for long service life
  • Class 150 rating handles 300 psi at 150 °F for reliable pressure performance
  • FNPT threads enable direct connection to standard NPT pipe without adapters
  • UL and FM approved to ASME B16.3 for code-compliant installations
  • Operating range from -20 °F to 350 °F suits steam and water systems

Specifications

TypeDrain Components
BrandAnvil
Model0320200223

Questions about this item

What size and thread type does the 2-1/2 in FNPT coupling need for a matching pipe?

It requires a 2-1/2 inch pipe with male NPT threads to match the female NPT ends of this Class 150 malleable iron fitting.

How do you install this coupling, and what is the common mistake with the threads?

Apply pipe thread sealant or tape to the male pipe threads, then tighten into each FNPT end; the mistake is overtightening, which can crack the malleable iron body.

What pressure and temperature limits determine when this coupling must be replaced?

Replace it if the system exceeds 300 psi at 150 °F or 150 psi saturated steam at 350 °F, or if corrosion appears beyond the -20 °F to 350 °F rated range.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.