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Malleable iron reducing coupling with female NPT threads

Anvil

Anvil 0310544408 Reducing Coupling Class 300

SKU CH-3JN1-HF6R0 MPN 0310544408

Malleable iron reducing coupling rated Class 300 for Schedule 80 pipe, connecting 1 1/2 in female NPT to 1/2 in female NPT at 500 psi maximum operating pressure

  • TypeDrain Components
  • MaterialHAWA
  • Malleable iron construction resists corrosion and mechanical stress
  • Class 300 rating handles 500 psi at 150 degrees Fahrenheit
  • Schedule 80 compatibility suits high-pressure piping systems
  • Reducing design joins 1 1/2 inch to 1/2 inch NPT threads
  • Female NPT threads on both ends simplify installation

Anvil Class 300 Reducing Coupling

The Anvil 0310544408 is a malleable iron reducing coupling rated Class 300 for Schedule 80 pipe systems. It connects a 1 1/2 inch female NPT thread to a 1/2 inch female NPT thread in plumbing installations. This new component suits installers joining dissimilar pipe sizes in high-pressure drain and trap networks. It provides a durable transition where reducing flow capacity is required.

Pressure Rating and Temperature Limit

The coupling withstands a maximum operating pressure of 500 psi at 150 degrees Fahrenheit. Its Class 300 designation confirms suitability for demanding Schedule 80 piping arrangements. Malleable iron construction resists mechanical stress and thermal cycling in hot water or steam lines. The material maintains seal integrity across the stated pressure and temperature range.

Installation Requirements and System Fit

The fitting requires compatible male NPT threads on both pipe ends for assembly with thread sealant or tape. It occupies minimal linear space between the two connected pipe sections. No specialised tools beyond standard pipe wrenches are needed for installation. The reducer frees up routing options by allowing a direct step-down without additional nipples or bushings.

Highlights

  • Malleable iron construction resists corrosion and mechanical stress
  • Class 300 rating handles 500 psi at 150 degrees Fahrenheit
  • Schedule 80 compatibility suits high-pressure piping systems
  • Reducing design joins 1 1/2 inch to 1/2 inch NPT threads
  • Female NPT threads on both ends simplify installation

Specifications

TypeDrain Components
MaterialHAWA
BrandAnvil
Model0310544408

Questions about this item

How do I thread the 1 1/2 in and 1/2 in NPT ends without cross-threading the malleable iron?

Apply PTFE tape or pipe dope to the male threads, then hand-tighten both female NPT ends before final wrench turns; the step most people skip is checking alignment after hand-tightening to avoid stressing the Class 300 body.

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

The HAWA malleable iron resists typical water chemistry, but in aggressive or high-mineral supplies plan to inspect threads and sealing surfaces annually and replace if pitting or leakage appears.

At what pressure or temperature does the coupling reach its rated limit first during continuous service?

The 500 psi @ 150 °F maximum operating pressure is the limiting factor; sustained pressure near 500 psi at temperatures approaching 150 °F will reach the Class 300 design limit before any other condition.

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