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Anvil malleable iron reducer coupling half by three-eighths FNPT Class 300

Anvil

Anvil 0310541404 Malleable Iron Reducer Coupling Class 300 1/2 in x 3/8 in FNPT

SKU CH-E2P9-Q8R55 MPN 0310541404

Malleable iron reducer coupling joins 1/2 in to 3/8 in FNPT threads, rated Class 300 for 2000 psi at 150 °F and 300 psi saturated steam at 550 °F, meeting ASME B 16.3 with UL, FM and AAR approvals

  • TypeDrain Components
  • Class 300 rating supports 2000 psi at 150 °F
  • FM and UL listings confirm safety compliance
  • AAR approved for demanding service applications
  • Meets ASME B 16.3 dimensional standards
  • Malleable iron construction handles -20 °F to 550 °F range

Product Identity

The Anvil 0310541404 is a malleable iron reducer coupling designed for plumbing professionals and maintenance engineers who need to join 1/2 inch and 3/8 inch FNPT pipe ends in high-pressure systems. It carries AAR, FM and UL approvals and meets ASME B 16.3 for code-compliant installations.

Installation Notes

The FNPT threads allow standard pipe wrench assembly without soldering or specialised tools, reducing on-site labour time. Care must be taken not to exceed the 2000 psi rating at 150 degrees F or the 300 psi saturated steam limit at 550 degrees F, as over-pressure is the most common cause of joint failure.

Critical Specification

The coupling operates across a temperature range of -20 to 550 degrees F and is rated for Class 300 service, making it suitable for demanding steam, water, oil and gas lines where lesser fittings would not hold.

Highlights

  • Class 300 rating supports 2000 psi at 150 °F
  • FM and UL listings confirm safety compliance
  • AAR approved for demanding service applications
  • Meets ASME B 16.3 dimensional standards
  • Malleable iron construction handles -20 °F to 550 °F range

Specifications

TypeDrain Components
BrandAnvil
Model0310541404

Questions about this item

How can I verify the Anvil 0310541404 reducer coupling is holding pressure correctly after installation?

Pressurise the line up to 2000 psi at 150 degrees F or 300 psi saturated steam at 550 degrees F and check for leaks at the FNPT threads; the coupling meets ASME B16.3 and carries UL, FM and AAR approvals for those limits.

What comes with the Anvil 0310541404 coupling and what must I supply myself?

The box contains the malleable iron reducer coupling with 1/2 in x 3/8 in FNPT threads; you must provide pipe sealant or tape and the mating pipe nipples.

Which version of the Anvil 0310541404 should I choose for a 300 psi steam system?

This single Class 300 model is rated for 300 psi saturated steam at 550 degrees F and 2000 psi at 150 degrees F, so it covers that requirement directly.

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