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

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.