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Malleable iron union, 1/4 inch FNPT, Class 150, dark grey finish

Anvil

Anvil 312822026 Union 1/4" FNPT Malleable Iron Class 150

SKU CH-ZE0M-H8W1B

Connects two 1/4-inch female-threaded pipes in Schedule 40 systems with 300 psi pressure rating

  • Malleable iron construction resists cracking under stress
  • Class 150 rating handles 300 psi at 150 °F
  • 1/4 inch FNPT threads connect Schedule 40 pipe securely
  • Union design allows quick disassembly for maintenance
  • New condition ensures full factory integrity from start

Anvil 1/4" FNPT Malleable Iron Union

The Anvil 312822026 is a 1/4 inch female NPT union made from malleable iron. It provides a removable joint for Schedule 40 piping systems. This fitting suits plumbers and maintenance crews who need a dependable connection that can be taken apart for service.

Replacing worn or permanent joints

Use this union to replace a damaged coupling or to convert a rigid pipe run into a serviceable section. The jump is worth it when future maintenance, equipment swaps or system modifications are expected. It eliminates the need to cut and re-thread pipe during routine work.

Class 150 rating gives 300 psi at 150 °F

The fitting comfortably handles standard water, air and oil lines operating within the Class 150 pressure-temperature envelope. It runs out when system pressure exceeds 300 psi at the rated temperature or when the media demands a higher class or different material.

Highlights

  • Malleable iron construction resists cracking under stress
  • Class 150 rating handles 300 psi at 150 °F
  • 1/4 inch FNPT threads connect Schedule 40 pipe securely
  • Union design allows quick disassembly for maintenance
  • New condition ensures full factory integrity from start

Specifications

BrandANVIL

Questions about this item

What pipe schedule does the 1/4" FNPT malleable iron union accept?

The union is rated for Schedule 40 pipe and Class 150 service, matching the 1/4" FNPT threads on both ends.

How do I assemble the three-piece union without damaging the iron threads?

Apply pipe thread sealant to the male threads, hand-tighten the nut onto the tailpiece, then finish with a wrench — avoid over-torquing the malleable iron.

When should I replace the gasket inside this Class 150 union?

Replace the gasket whenever the joint is broken for service or if leakage appears at the 300 psi / 150 °F rating limit.

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