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Galvanised steel union coupling with threaded ends

Value Brand

Value Brand 3/4 in NPT Steel Union Coupling

SKU CH-C96J-3CJ2Z

Steel union coupling joins two 3/4 in NPT pipes with galvanized A105 Class 3000 construction for Schedule 160 systems

  • 3/4 in NPT threads connect standard pipe sizes
  • Galvanized A105 steel resists corrosion in water lines
  • Class 3000 rating handles high-pressure plumbing systems
  • Schedule 160 wall thickness adds mechanical strength
  • Union design allows quick disassembly for maintenance

3/4 in NPT Steel Union Coupling

This ZORO SELECT coupling joins two 3/4 inch NPT threaded pipes in a straight line. The steel body carries a Class 3000 rating and is built to A105 material standards for durability. Galvanised finish adds corrosion resistance in water, air and oil lines. The union design allows quick disassembly for maintenance without cutting pipe.

Installers needing a removable joint on Schedule

Suits systems where the pipe specification calls for Schedule 160 wall thickness and a 3/4 inch NPT thread. Not intended for applications that require a different thread standard, a welded connection or a pressure class above 3000. Buyers who need a reducing union or a different material should select another fitting.

Class 3000 pressure rating

The coupling is rated Class 3000, which determines the maximum operating pressure for the assembly. This single figure decides whether the fitting matches the design pressure of the piping system. Always verify the system pressure against this rating before installation.

Highlights

  • 3/4 in NPT threads connect standard pipe sizes
  • Galvanized A105 steel resists corrosion in water lines
  • Class 3000 rating handles high-pressure plumbing systems
  • Schedule 160 wall thickness adds mechanical strength
  • Union design allows quick disassembly for maintenance

Specifications

BrandZORO SELECT

Questions about this item

How do I install the 3/4 in NPT union coupling and what is the common mistake?

Wrap PTFE tape on the male threads, hand-tighten, then use a wrench for two more turns; the mistake is skipping the tape and leaking at the joint.

What maintenance will the galvanized A105 steel union need over time?

Inspect threads annually for corrosion or mineral build-up; replace the coupling if the galvanized coating wears through and rust appears.

What pressure limit appears first during sustained use of this Class 3000 Schedule 160 fitting?

The 3000 psi class rating is the design ceiling; sustained pressure above that will cause permanent deformation before any other failure mode.

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