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Anvil 1-1/2 inch malleable iron union class 300 500 psi

Anvil

Anvil 312822745 1-1/2" Malleable Iron Union Class 300 500 psi

SKU CH-79GC-SYHWY

Malleable iron Class 300 union for Schedule 80 pipe, female NPT ends, rated 500 psi at 150 °F

  • Class 300 rating handles 500 psi at 150 °F
  • Malleable iron body resists cracking under high pressure
  • Schedule 80 compatibility suits heavy-duty steam lines
  • Female NPT threads on both ends simplify installation

1-1/2" Malleable Iron Union Class 300

The Anvil 312822745 is a malleable iron union rated Class 300 for schedule 80 piping. It connects two 1-1/2 inch female NPT threads in a straight line. The fitting handles 500 psi at 150 degrees F maximum operating pressure. It suits industrial steam, water, oil or gas lines that demand a strong, reusable joint.

Female NPT threads on both ends

Both ends use 1-1/2 inch female NPT threads so the union joins pipe nipples or threaded valves without adapters. The ground-joint seat seals metal-to-metal when the nut is tightened, allowing repeated disassembly for maintenance. No gaskets, sealant or special tools are supplied with the fitting. Installers must provide compatible pipe thread compound or tape rated for the system pressure and temperature.

Highlights

  • Class 300 rating handles 500 psi at 150 °F
  • Malleable iron body resists cracking under high pressure
  • Schedule 80 compatibility suits heavy-duty steam lines
  • Female NPT threads on both ends simplify installation

Specifications

BrandANVIL

Questions about this item

Will the malleable iron union need gasket or O-ring replacement over time?

The union uses a metal-to-metal seat design inherent to malleable iron Class 300 fittings, so no separate gasket or O-ring is present to wear out or replace during normal service.

What pressure-temperature limit applies first during sustained high-temperature operation?

The maximum operating pressure is 500 psi at 150 degrees F; exceeding this temperature reduces the allowable pressure for the Class 300 rating.

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