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Round malleable iron pipe cap with female NPT threads

Anvil

Anvil 0318901386 Malleable Iron Cap Class 3000 1-1/2 in NPT

SKU CH-J2PA-Q1JTF MPN 0318901386

Malleable iron cap with 1-1/2 inch female NPT threads rated for 2000 psi at 150 degrees F

  • TypeDrain Components
  • MaterialHAWA
  • Malleable iron construction withstands 2,000 psi at 150 °F
  • Rated for 300 psi steam service up to 550 °F
  • Operates reliably from -20 °F to 550 °F
  • Female NPT threads seal without extra sealant
  • Class 3000 rating for heavy-duty plumbing installations

Anvil Malleable Iron Cap 1-1/2 in NPT

The Anvil 0318901386 is a malleable iron cap designed for plumbing drain and trap systems. It features a 1-1/2 inch nominal pipe size with female NPT threads. The fitting carries a Class 3000 pressure rating for demanding installations.

Suits high-pressure steam and water lines

This cap suits installers who need a solid plug construction rated for 300 psi at 550 degrees F steam service. It also handles 2,000 psi at 150 degrees F water service. Buyers who need a cap with pre-applied thread sealant or an included gasket should look elsewhere.

Class 3000 pressure class decides fit

The Class 3000 designation confirms the wall thickness and pressure boundary for the intended piping system. Verify that your piping specification calls for this exact class before purchasing. The operating range spans -20 degrees to 550 degrees F.

Highlights

  • Malleable iron construction withstands 2,000 psi at 150 °F
  • Rated for 300 psi steam service up to 550 °F
  • Operates reliably from -20 °F to 550 °F
  • Female NPT threads seal without extra sealant
  • Class 3000 rating for heavy-duty plumbing installations

Specifications

TypeDrain Components
MaterialHAWA
BrandAnvil
Model0318901386

Questions about this item

Should I pick the 1-1/2 in NPT malleable iron cap or a different size for my piping?

Choose the 1-1/2 in NPT size when your pipe has that exact nominal diameter and female thread; other sizes will not seal on this thread.

What does the Class 3000 rating tell me about pressure once the cap is installed?

Class 3000 means the cap handles 2,000 psi at 150 degrees F and 300 psi steam at 550 degrees F in service.

How does the female NPT thread limit what I can connect to this cap?

The female NPT thread only accepts male NPT fittings of the same 1-1/2 in nominal size; other thread forms will not seal.

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