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Galvanised malleable iron wye coupling with three FNPT ends

Anvil

Anvil 311067409 1-1/2" FNPT Galvanized Wye Coupling

SKU CH-HA9K-7A5BG

Galvanized malleable iron wye fitting with 1-1/2 inch FNPT connections, Class 300 rating for 1500 psi WOG and 300 psi steam service to 150 degrees F

  • ASME 16.3 standard ensures reliable piping connections
  • ASTM A-197 malleable iron resists cracking under stress
  • Class 300 rating handles 1500 psi water-oil-gas pressure
  • 300 psi saturated steam capacity suits high-temperature lines
  • Galvanized coating protects against corrosion in harsh environments

Galvanised Wye for 1-1/2" FNPT Systems

The Anvil 311067409 is a Class 300 galvanised malleable iron wye coupling designed to split or combine flow in 1-1/2 inch FNPT piping. It meets ASME 16.3 and ASTM A-197 standards and is rated for 1500 psi water, oil and gas at 150 degrees Fahrenheit. The fitting operates from -20 to 150 degrees Fahrenheit.

Suited to High-Pressure Branch Connections

This wye suits installers who need a durable branch fitting for saturated steam up to 300 psi or cold-water systems at the full 1500 psi rating. It is not for lines that exceed the temperature ceiling or that require a different thread standard or a larger bore than the stated pipe size.

Sustained Load Behaviour Under Pressure

Under continuous 1500 psi service at 150 degrees Fahrenheit the galvanised malleable iron body maintains its seal without permanent deformation. At the 300 psi saturated steam limit the material resists creep and thread leakage over extended duty cycles. The -20 degree lower bound ensures the iron does not embrittle during prolonged cold exposure.

Highlights

  • ASME 16.3 standard ensures reliable piping connections
  • ASTM A-197 malleable iron resists cracking under stress
  • Class 300 rating handles 1500 psi water-oil-gas pressure
  • 300 psi saturated steam capacity suits high-temperature lines
  • Galvanized coating protects against corrosion in harsh environments

Specifications

BrandANVIL

Questions about this item

What size male NPT pipe nipples do I need to thread into the 1-1/2" FNPT ends of this Wye?

You need 1-1/2" male NPT nipples or fittings to match the female National Pipe Thread connections on each branch of the coupling.

Can this Class 300 galvanized malleable iron Wye stay in a line that also has older Class 150 black iron fittings?

Yes, the ASME B16.3 threads are interchangeable, but the system pressure rating drops to the lowest class present — 300 psi saturated steam or 1500 psi WOG at 150 °F for this fitting.

After threading the Wye into the line, what quick check confirms it is seated and leak-free at working pressure?

Pressurize the system up to 1500 psi WOG at 150 °F and inspect all three FNPT joints; no weeping means the tapered threads have sealed correctly.

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