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Black malleable iron square head pipe plug, 2-1/2 inch NPT, Class 150

Anvil

Anvil 0318902608 2-1/2in Malleable Iron Square Head Plug Class 150

SKU CH-J37D-G2XTZ MPN 0318902608

A 2-1/2 inch malleable iron square head plug rated Class 150 for temperatures from -20 to 350 degrees Fahrenheit

  • TypeDrain Components
  • Malleable iron construction handles 150 psi working pressure
  • Square head design enables installation with standard wrenches
  • Class 150 rating suits low-pressure plumbing systems
  • Male NPT threads connect directly to female fittings
  • Temperature range from -20 to 350 degrees Fahrenheit

2-1/2in Malleable Iron Plug

This 2-1/2 inch square head plug is made from malleable iron and rated for Class 150 service. It features male NPT threads and a solid construction finished in black. The fitting is designed for standard plumbing drain and trap applications.

Operating Temperature Range

The plug withstands continuous temperatures from -20 to 350 degrees Fahrenheit. Malleable iron maintains its structural integrity across this range without the brittleness of cast iron. No thread sealant is pre-applied so the installer chooses the appropriate compound.

Replaces Worn or Leaking Drain Plugs

This component upgrades deteriorated plugs in existing Class 150 piping systems where a square head allows wrench tightening. The jump is worth it when the old plug shows corrosion, stripped threads or cannot hold pressure at the rated temperature limits. It is not for systems requiring a higher pressure class or a different thread standard.

Highlights

  • Malleable iron construction handles 150 psi working pressure
  • Square head design enables installation with standard wrenches
  • Class 150 rating suits low-pressure plumbing systems
  • Male NPT threads connect directly to female fittings
  • Temperature range from -20 to 350 degrees Fahrenheit

Specifications

TypeDrain Components
BrandAnvil
Model0318902608

Questions about this item

Does the 2-1/2 inch Class 150 malleable iron plug handle continuous 350 °F steam lines without leaking?

The solid malleable iron construction is rated for -20 °F to 350 °F at Class 150 pressure, so it will hold temperature and pressure all day when installed with proper thread sealant.

What pipe fitting do I need on hand to thread this square-head plug into?

You need a female NPT opening of 2-1/2 inch nominal size; the plug has male NPT threads and a square head for a wrench.

Will this black iron plug gall or seize if I remove it from older galvanized pipe later?

Malleable iron on galvanized steel can seize over time; applying fresh thread sealant on reinstallation reduces galling risk.

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