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Bronze press-fit adapter with female threaded end

Viega

Viega ProPress 2912ZL Bronze Adapter 1/2 x 3/4

SKU CH-HFH1-BTRTT

Bronze press-to-thread adapter joins 1/2 in copper tube to 3/4 in FNPT for potable water at 200 psi and 250 °F

  • Press-fit connection eliminates soldering for faster installation
  • Bronze body with EPDM O-ring handles 200 psi at 250°F
  • 1/2 in press to 3/4 in FNPT adapts different pipe sizes
  • Meets ASTM B75 and ASTM B88 material standards
  • Straight adapter design keeps flow path simple and compact

ProPress 2912ZL Bronze Adapter

The Viega ProPress 2912ZL is a bronze straight adapter designed to join a 1/2 inch copper tube press connection to a 3/4 inch FNPT threaded connection. It serves plumbing professionals and installers working on potable water systems who need a secure, flame-free transition between press-fit and threaded pipe ends. The fitting carries ASTM B75 and ASTM B88 compliance.

Sustained pressure and temperature performance

Rated for a maximum operating pressure of 200 psi and a maximum operating temperature of 250 degrees F, the adapter maintains its seal under continuous service conditions rather than only during brief test spikes. The EPDM O-ring material resists degradation from hot water exposure over long periods. Bronze construction provides corrosion resistance compatible with potable water applications.

1/2 inch press to 3/4 inch FNPT sizing

The defining specification is the mismatched end sizing: a 1/2 inch copper tube size press end paired with a 3/4 inch FNPT threaded end. This single dimensional relationship determines whether the adapter fits the specific transition required in the piping layout. Installers must verify both the tube size and the thread size against their system before purchase.

Highlights

  • Press-fit connection eliminates soldering for faster installation
  • Bronze body with EPDM O-ring handles 200 psi at 250°F
  • 1/2 in press to 3/4 in FNPT adapts different pipe sizes
  • Meets ASTM B75 and ASTM B88 material standards
  • Straight adapter design keeps flow path simple and compact

Specifications

BrandViega

Questions about this item

Does the bronze adapter generate heat or noise when water runs through it all day?

The adapter is a passive bronze fitting with no moving parts, so it produces no noise or heat during continuous water flow.

What tools and pipe must I already have to install this ProPress 2912ZL adapter?

You need a Viega ProPress press tool, 1/2 in copper tubing for the press end, and a 3/4 in FNPT threaded pipe or valve for the other side.

Will this 1/2 x 3/4 adapter connect to older copper pipe and threaded fittings I already own?

Yes, the press end joins standard 1/2 in copper tube per ASTM B88 and the threaded end mates with any 3/4 in FNPT component.

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