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Bronze straight adapter with press and threaded ends

Viega

Viega 79225 ProPress adapter 3/4" x 1/2" trap

SKU CH-90MF-GHWEG MPN 79225

Bronze press-fit adapter connects ¾-inch copper tube to ½-inch male pipe thread with an EPDM seal, rated for 200 psi and 250 °F

  • TypeDrain Components
  • Press-fit copper connection installs without soldering
  • Bronze body with EPDM seal handles 200 psi potable water
  • Straight adapter joins 3/4 in copper to 1/2 in MNPT thread
  • Rated to 250 °F for hot-water service
  • Meets ASTM B75 and ASTM B88 material standards

ProPress Adapter 3/4" x 1/2

The Viega 79225 ProPress adapter is a bronze straight fitting that joins 3/4 inch copper tube to 1/2 inch male NPT threads. It uses a press-fit connection on the copper side and includes an EPDM O-ring for a secure seal. The fitting measures 1 15/16 inches overall and is rated for potable water systems. It meets ASTM B75 and ASTM B88 standards for material quality.

Installers needing press-to-thread transitions

This adapter suits plumbers who want a flameless, solder-free joint between copper tubing and threaded pipe or equipment. It is not for installers who require a female threaded outlet, a reducing elbow, or a fitting compatible with press tools from other manufacturers. Buyers needing larger diameter connections or different thread combinations must select another model.

Fits copper systems up to 200 psi and 250°F

The bronze body and EPDM seal handle the stated pressure and temperature limits in hot and cold potable water lines. A compatible ProPress tool is required to complete the press-fit end; no torch, flux, or solder is needed. The straight shape keeps the run compact while freeing the installer from open-flame work in tight spaces.

Highlights

  • Press-fit copper connection installs without soldering
  • Bronze body with EPDM seal handles 200 psi potable water
  • Straight adapter joins 3/4 in copper to 1/2 in MNPT thread
  • Rated to 250 °F for hot-water service
  • Meets ASTM B75 and ASTM B88 material standards

Specifications

TypeDrain Components
BrandViega
Model79225

Questions about this item

What press tool and jaw size are required to install the 3/4 in press connection on the Viega 79225 adapter?

A Viega ProPress tool with a 3/4 in jaw is required to form a secure press joint on the copper tube side of this bronze adapter.

Can the 1/2 in MNPT threads on the Viega 79225 adapter connect to existing 1/2 in copper pipe using a threaded adapter?

Yes, the 1/2 in MNPT threads accept standard 1/2 in female threaded fittings, allowing transition to existing copper or steel piping.

How can I verify the Viega 79225 adapter is leak-free after pressing and threading?

Pressurise the system up to 200 psi at up to 250 °F; a properly pressed joint and sealed threads will hold pressure without weeping.

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