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Anvil

Anvil 312822000 Malleable Iron Union Class 150 1/8 in NPT 300 psi

SKU CH-MHD8-020K8

A malleable iron union rated 300 psi at 150 °F connects two 1/8 in NPT female ends for Schedule 40 pipe

  • Malleable iron construction withstands 300 psi at 150 °F
  • Class 150 rating suits Schedule 40 piping systems
  • 1/8 in female NPT threads connect directly to standard pipe
  • Anvil 312822000 union enables quick disassembly for maintenance

Anvil Malleable Iron Union Class 150 1/8 in NPT

This malleable iron union provides a separable joint for piping systems using Schedule 40 pipe. It features female NPT threads on both ends sized at 1/8 inch. The fitting is rated for a maximum operating pressure of 300 psi at 150 degrees Fahrenheit. It suits installers who need a reliable, detachable connection point in standard plumbing layouts.

Pressure and temperature limits for Class 150

The Class 150 designation sets the pressure boundary at 300 psi when the media temperature reaches 150 degrees Fahrenheit. Higher temperatures will reduce the allowable pressure below this rating. The 1/8 inch NPT thread size restricts flow capacity compared to larger diameters. Buyers needing higher pressure ratings or larger flow paths must select a different class or size.

Highlights

  • Malleable iron construction withstands 300 psi at 150 °F
  • Class 150 rating suits Schedule 40 piping systems
  • 1/8 in female NPT threads connect directly to standard pipe
  • Anvil 312822000 union enables quick disassembly for maintenance

Specifications

BrandANVIL

Questions about this item

Should I pick the 1/8 in NPT version or a larger size?

This union is only offered in 1/8 in female NPT on both ends; select it when your piping uses that exact thread size.

What does the 300 psi rating mean once the union is installed?

It indicates a maximum operating pressure of 300 psi at up to 150 °F for Schedule 40 pipe in a Class 150 malleable iron fitting.

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