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Malleable iron pipe cap with threaded connection, 2-1/2 inch size, dark metal finish

Anvil

Anvil 0318901410 2-1/2" Malleable Iron Cap trap

SKU CH-1AE0-TEXNY MPN 0318901410

A 2-1/2 inch malleable iron FNPT cap rated to 1000 psi at 150°F and 300 psi saturated steam at 550°F, meeting ASME B16.3 with FM and UL approvals

  • TypeDrain Components
  • Malleable iron construction resists cracking under 1000 psi pressure
  • Class 300 rating handles saturated steam up to 300 psi at 550 degrees F
  • FNPT threads seal reliably from minus 20 to 550 degrees F
  • AAR, FM, UL and ASME B16.3 approvals confirm code compliance
  • 2-1/2 inch pipe size fits standard drainage and trap installations

Anvil 2-1/2" Malleable Iron Cap

The Anvil 0318901410 is a Class 300 pipe cap made from malleable iron for plumbing and industrial piping systems. It uses a 2-1/2 inch FNPT connection and carries AAR, FM and UL approvals while meeting ASME B16.3. The fitting is rated for 1000 psi at 150 degrees F and 300 psi saturated steam at 550 degrees F.

Installers needing a high-pressure threaded closure

This cap suits installers who require a durable, standards-compliant closure for steam, water, oil or gas lines up to the rated pressures and temperatures. It is not for systems exceeding 1000 psi at 150 degrees F or 300 psi steam at 550 degrees F. Buyers needing a welded, flanged or larger-diameter closure should look at other fitting types.

Pressure headroom up to 1000 psi and 550 degrees F

The cap comfortably handles saturated steam at 300 psi and 550 degrees F as well as non-shock cold water, oil or gas at 1000 psi and 150 degrees F. It runs out of headroom above those pressures or beyond the -20 to 550 degrees F temperature range. The single 2-1/2 inch FNPT port limits use to matching threaded pipe sizes.

Highlights

  • Malleable iron construction resists cracking under 1000 psi pressure
  • Class 300 rating handles saturated steam up to 300 psi at 550 degrees F
  • FNPT threads seal reliably from minus 20 to 550 degrees F
  • AAR, FM, UL and ASME B16.3 approvals confirm code compliance
  • 2-1/2 inch pipe size fits standard drainage and trap installations

Specifications

TypeDrain Components
BrandAnvil
Model0318901410

Questions about this item

What pipe size and thread type must I already have for the 2-1/2 inch FNPT cap to seal properly?

You need a 2-1/2 inch male NPT pipe thread; the cap’s female NPT connection will seal directly on that size without an adapter.

Will the Class 300 malleable iron cap handle the same 1000 psi at 150 °F rating as my existing Class 300 fittings?

Yes, the cap is rated for 1000 psi at 150 °F and 300 psi saturated steam at 550 °F, matching Class 300 pressure-temperature limits.

How can I confirm the cap meets ASME B16.3 and carries the required UL and FM marks after installation?

Look for the ASME B16.3, UL Listed and FM Approved markings cast or stamped on the cap body; their presence confirms compliance.

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