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Galvanised malleable iron reducing coupling 3in to 2in NPT

Anvil

Anvil 311091003 Reducing Coupling 3in x 2in NPT Class 150

SKU CH-SHGB-HA362

Galvanised malleable-iron reducing coupling joins 3-inch to 2-inch NPT pipe at Class 150 with a 300 psi rating

  • Reduces pipe size from 3 in to 2 in NPT
  • Malleable iron construction resists mechanical stress
  • Galvanized finish protects against corrosion
  • Class 150 rating suits Schedule 40 piping systems
  • Handles 300 psi at 150 °F operating conditions

Anvil 311091003 Reducing Coupling

This Anvil reducing coupling connects 3 inch NPT female threads to 2 inch NPT female threads in galvanized malleable iron. It is rated for Class 150 service with Schedule 40 pipe. The fitting suits plumbing and industrial piping systems that require a step-down in nominal pipe size.

Thermals Noise and Power Draw

As a passive mechanical fitting this coupling generates no heat, noise or electrical power draw during operation. Its pressure rating of 300 psi at 150 degrees Fahrenheit defines the thermal and hydraulic limits for the installed system.

Build Quality and Connections

Galvanized malleable iron construction provides corrosion resistance and mechanical strength for threaded pipe assemblies. The NPT female threads on both ends accept standard taper-threaded pipe or nipples without additional adapters. The Class 150 rating matches common low-pressure piping requirements in water, air and oil lines.

Highlights

  • Reduces pipe size from 3 in to 2 in NPT
  • Malleable iron construction resists mechanical stress
  • Galvanized finish protects against corrosion
  • Class 150 rating suits Schedule 40 piping systems
  • Handles 300 psi at 150 °F operating conditions

Specifications

BrandANVIL

Questions about this item

How do I install the 3-inch by 2-inch NPT reducing coupling without damaging the threads?

Apply PTFE tape or pipe thread sealant to the male threads only, then hand-tighten before using a wrench for one to two additional turns; over-tightening malleable iron can crack the fitting.

What maintenance will the galvanized malleable iron coupling need over time?

Inspect the exterior periodically for white rust or flaking zinc; if corrosion penetrates the galvanizing, replace the fitting because the underlying iron will degrade under 300 psi service.

Which pressure or temperature limit will be reached first during continuous hot-water circulation?

The Class 150 rating caps continuous pressure at 300 psi at 150 °F; exceeding either value risks joint failure on Schedule 40 pipe.

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