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Straight malleable iron coupling with female threads

Anvil

Anvil 0320200074 Trap, 1-1/2 in FNPT Malleable Iron

SKU CH-EAE7-94P3Y MPN 0320200074

A 1-1/2 inch FNPT malleable iron drain coupling rated for 300 psi at 150 degrees Fahrenheit

  • TypeDrain Components
  • MaterialHAWA
  • Schedule 40 steel rated for 300 psi service
  • Class 150 pressure class supports standard plumbing
  • Female NPT threads connect without adapters
  • Malleable iron body resists cracking under stress
  • Merchant coupling design joins two pipe ends

Product Identity

The Anvil 0320200074 is a straight merchant coupling made from malleable iron with 1-1/2 inch female NPT threads on both ends. It is rated for Class 150 service up to 300 psi at 150 degrees F and suits Schedule 40 piping in plumbing and industrial installations.

Upgrade Context

This coupling replaces a worn, corroded or undersized fitting in an existing threaded steel line. The jump is worth it when the current joint leaks, cannot hold the required pressure class or when the pipe schedule changes to Schedule 40 and a matching Class 150 component is needed.

Installation Notes

Thread each end onto clean male NPT pipe using appropriate sealant or tape for a pressure-tight seal. Common issues include cross-threading the iron threads, over-tightening which can crack the malleable material, or using mismatched pipe schedules that prevent full engagement.

Highlights

  • Schedule 40 steel rated for 300 psi service
  • Class 150 pressure class supports standard plumbing
  • Female NPT threads connect without adapters
  • Malleable iron body resists cracking under stress
  • Merchant coupling design joins two pipe ends

Specifications

TypeDrain Components
MaterialHAWA
BrandAnvil
Model0320200074

Questions about this item

What pipe size and thread type does the 1-1/2 in FNPT malleable iron trap require for connection?

The trap uses 1-1/2 inch female NPT threads on both ends, so it connects directly to male NPT pipe of the same nominal size.

Which sealant method is correct for the tapered NPT threads on this trap, and what common mistake should be avoided?

Apply PTFE tape or pipe dope to the male threads only; over-tightening past hand-tight plus one to two turns can crack the malleable iron casting.

How often should the trap be inspected for internal corrosion given the HAWA material and 300 psi rating at 150 °F?

Inspect annually for scale or rust buildup; replace the trap if the internal bore shows pitting or if leakage appears at the threaded joints.

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