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Black malleable iron cross fitting with four female NPT ports

Anvil

Anvil 0310070404 Malleable Iron Cross Class 150 1 1/4 in NPT 300 psi

SKU CH-Z7MG-F975R MPN 0310070404

A malleable iron cross fitting with four 1 1/4 inch NPT female connections rated for 300 psi at 150 degrees Fahrenheit

  • TypeDrain Components
  • Malleable iron construction resists cracking under stress
  • Class 150 rating suits standard residential plumbing
  • Four NPT ports enable flexible pipe routing
  • 300 psi maximum pressure handles demanding water lines
  • Schedule 40 compatibility simplifies installation with common pipe

Malleable Iron Cross Fitting

This Anvil Class 150 cross fitting is made from malleable iron and provides four 1 1/4 inch female NPT connections for joining pipe sections in plumbing systems. It is rated for a maximum operating pressure of 300 psi at 150 degrees Fahrenheit and suits Schedule 40 pipe.

Installers needing four-way NPT junctions

Plumbers and maintenance crews building or repairing piping networks with 1 1/4 inch NPT threads will find this cross fitting matches the required specification. It is not suitable for systems using different thread standards, pipe sizes, or pressure ratings beyond the stated Class 150 limit.

300 psi at 150 °F pressure rating

The decisive specification is the maximum operating pressure of 300 psi at 150 degrees Fahrenheit, which determines whether the fitting can handle the intended service conditions. Verify the system design pressure and temperature against this rating before installation.

Highlights

  • Malleable iron construction resists cracking under stress
  • Class 150 rating suits standard residential plumbing
  • Four NPT ports enable flexible pipe routing
  • 300 psi maximum pressure handles demanding water lines
  • Schedule 40 compatibility simplifies installation with common pipe

Specifications

TypeDrain Components
BrandAnvil
Model0310070404

Questions about this item

What pipe schedule must I already have for this 1 1/4 in NPT cross to thread on correctly?

The cross is made for Schedule 40 pipe, so your existing 1 1/4 in NPT male threads must be cut to that schedule for a proper seal.

Can I mix this Class 150 cross with existing Class 150 malleable iron fittings rated at 300 psi?

Yes — both carry the same 300 psi @ 150 °F rating, so the cross will not become the pressure-limiting component in that assembly.

How do I confirm the cross is holding pressure after installation?

Pressurise the system to its working pressure up to 300 psi at no more than 150 °F and check all four NPT joints for leaks; no weeping means the cross is performing as specified.

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