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Malleable iron reducer coupling half inch by quarter inch NPT female threads dark metal finish

Anvil

Anvil 0310085600 Reducer Coupling 1/2" x 1/4" Malleable Iron Class 150 Schedule 40 300 psi

SKU CH-CYBJ-0S3BG MPN 0310085600

Malleable iron reducer coupling joins 1/2" and 1/4" NPT threads for Schedule 40 piping at 300 psi

  • TypeDrain Components
  • MaterialHAWA
  • Reducer coupling joins 1/2" and 1/4" NPT lines
  • Malleable iron body rated for 300 psi service
  • Class 150 fitting matches Schedule 40 pipe systems
  • Female threads on both ends simplify installation
  • Anvil model 310085600 built for drain applications

Anvil 1/2" x 1/4" Malleable Iron Reducer Coupling

This Anvil reducing coupling connects a 1/2 inch female NPT pipe to a 1/4 inch female NPT pipe. It is made from malleable iron rated for Class 150 service. The fitting suits Schedule 40 piping systems in plumbing and industrial applications. Buyers needing a different thread type or a larger step-down size will need another fitting.

Installing the Class 150 Schedule 40 Coupling

Apply thread sealant or tape to the male threads before engaging the female NPT ports. Tighten to the recommended torque for malleable iron to avoid cracking the casting. Over-tightening is the most common cause of leaks or damaged threads on this reducer. The 300 psi rating applies only when joints are assembled correctly.

Sustained Pressure Performance at 150 Degrees F

The coupling holds a maximum operating pressure of 300 psi at temperatures up to 150 degrees Fahrenheit. Malleable iron maintains its strength under continuous load within these limits without the creep seen in some plastics. Systems that exceed either the pressure or temperature rating require a higher-class fitting. The material resists vibration fatigue in long service runs.

Highlights

  • Reducer coupling joins 1/2" and 1/4" NPT lines
  • Malleable iron body rated for 300 psi service
  • Class 150 fitting matches Schedule 40 pipe systems
  • Female threads on both ends simplify installation
  • Anvil model 310085600 built for drain applications

Specifications

TypeDrain Components
MaterialHAWA
BrandAnvil
Model0310085600

Questions about this item

How can I verify the coupling is holding pressure correctly after installation?

Pressurise the line to its working limit and inspect both NPT threads for leaks; the malleable iron body is rated for 300 psi at 150 °F.

What comes with the coupling and what extra parts are needed?

The box contains only the 1/2" x 1/4" reducer coupling; pipe lengths, thread sealant and wrenches must be sourced separately.

Which schedule rating should I select for a standard-pressure drain line?

Choose the Schedule 40 version — it matches the coupling's Class 150 designation and 300 psi pressure rating.

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