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Two-inch malleable iron merchant coupling with threaded ends

Anvil

Anvil 0320200090 2 in malleable iron drain trap

SKU CH-NHM0-ABEMH MPN 0320200090

A 2-inch malleable iron merchant coupling rated for 300 psi at 150°F and 150 psi saturated steam at 350°F, meeting ASME B16.3 and UL/FM standards

  • TypeDrain Components
  • Malleable iron construction resists corrosion and mechanical stress
  • Class 150 rating supports up to 300 psi at 150 °F
  • ASME B16.3 compliance ensures dimensional accuracy and thread quality
  • 2 in FNPT connections fit standard iron pipe without adapters
  • Temperature range from −20 °F to 350 °F handles steam and cold-water lines

2 in Malleable Iron Merchant Coupling

This Anvil merchant coupling connects two-inch FNPT pipe sections in plumbing and industrial piping systems. The malleable iron construction meets ASME B 16.3 standards for dimensional accuracy and thread quality. It is supplied new and carries UL and FM approvals for code-compliant installations. The fitting suits contractors and maintenance crews joining threaded pipe runs.

Class 150 Rating and Temperature Range

The Class 150 rating supports saturated steam pressure up to 150 psi at 350 degrees Fahrenheit. For water, oil, or gas service the maximum pressure is 300 psi at 150 degrees Fahrenheit. The approved temperature span runs from minus 20 degrees to 350 degrees Fahrenheit. These limits define the safe operating envelope for the coupling in steam and liquid applications.

Two-Inch FNPT Thread Capacity

The coupling accepts two-inch FNPT threads on both ends, providing a straight joint for same-size pipe. It does not reduce or transition between different diameters, so installers needing a change in pipe size must source a separate reducer. The malleable iron material resists mechanical shock better than cast iron but is not suited for highly corrosive fluids without additional protection. Systems exceeding the 300 psi or 350 degree limits require a higher-class fitting.

Highlights

  • Malleable iron construction resists corrosion and mechanical stress
  • Class 150 rating supports up to 300 psi at 150 °F
  • ASME B16.3 compliance ensures dimensional accuracy and thread quality
  • 2 in FNPT connections fit standard iron pipe without adapters
  • Temperature range from −20 °F to 350 °F handles steam and cold-water lines

Specifications

TypeDrain Components
BrandAnvil
Model0320200090

Questions about this item

Will the malleable iron coupling need replacement due to corrosion or wear over time?

Malleable iron resists mechanical wear well; corrosion depends on the fluid carried and whether the system uses protective coatings or water treatment.

What pressure limit applies first during continuous operation at elevated temperature?

The 150 psi saturated steam rating at 350 °F is lower than the 300 psi water rating at 150 °F, so steam pressure governs in high-temperature service.

How much heat does the coupling radiate when hot water or steam flows through it all day?

The fitting itself generates no heat; it simply conducts the fluid temperature, so surface temperature will approach the 350 °F maximum rating under sustained steam service.

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