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Black malleable iron tee pipe fitting with three threaded openings

Anvil

Anvil 0310030408 1-1/4" Malleable Iron Tee trap

SKU CH-QA7C-31HCB MPN 0310030408

Malleable iron tee trap connects 1-1/4" FNPT piping, rated 300 psi at 150 °F and 150 psi saturated steam to 350 °F, meeting ASME B 16.3

  • TypeDrain Components
  • Malleable iron construction resists corrosion and mechanical stress
  • Class 150 rating supports 300 psi at 150 °F for reliable service
  • ASME B 16.3 compliance confirms dimensional and material quality
  • FNPT threads enable direct connection to standard NPT piping
  • Operating range from -20 °F to 350 °F suits steam and water systems

1-1/4" Malleable Iron Tee

The Anvil 0310030408 is a Class 150 pipe fitting manufactured from black malleable iron for plumbing and steam systems. It provides a tee connection with female NPT threads on all three openings for joining 1-1/4 inch pipe.

ASME B16.3 and UL/FM compliance

The fitting meets ASME B16.3 dimensional standards and carries UL and FM approvals for use in fire protection and general service piping. It is rated for 300 psi at 150 degrees Fahrenheit and 150 psi saturated steam pressure across a temperature range of -20 to 350 degrees Fahrenheit.

Installation uses standard NPT threading

The FNPT connections accept 1-1/4 inch male pipe threads with thread sealant or tape applied to the male threads. Over-tightening can crack the malleable iron body so installers should follow standard practice for tapered pipe threads.

Highlights

  • Malleable iron construction resists corrosion and mechanical stress
  • Class 150 rating supports 300 psi at 150 °F for reliable service
  • ASME B 16.3 compliance confirms dimensional and material quality
  • FNPT threads enable direct connection to standard NPT piping
  • Operating range from -20 °F to 350 °F suits steam and water systems

Specifications

TypeDrain Components
BrandAnvil
Model0310030408

Questions about this item

Will the malleable iron threads need sealant replacement over time?

The FNPT threads on this Class 150 tee rely on pipe dope or tape; reapply sealant whenever the joint is broken for service.

What pressure limit governs continuous steam service?

Saturated steam pressure is rated at 150 psi per ASME B 16.3.

How hot does the body get when conveying 300 psi water at 150 °F?

The fitting is rated to 350 °F, so surface temperature will approach the fluid temperature during sustained operation.

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