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Bronze ProPress adapter with press-fit and threaded ends, straight shape, EPDM seal

Viega

Viega 79310 ProPress adapter 3/4" x 1/2" trap

SKU CH-3QG3-KY52C MPN 79310

Bronze ProPress adapter joins 3/4 in copper tube to 1/2 in FNPT with EPDM seal rated to 200 psi and 250 °F

  • TypeDrain Components
  • MaterialHAWA
  • Press-fit connection installs without soldering
  • Bronze body with EPDM seal handles 200 psi
  • Rated for 250 °F hot-water service
  • Meets ASTM B75 and ASTM B88 standards
  • 3/4 in press to 1/2 in FNPT straight adapter

ProPress adapter 3/4" x 1/2

This bronze crimp adapter joins 3/4 inch copper tube to 1/2 inch female NPT threads. It uses Viega ProPress press-fit technology for a secure, flame-free connection on potable water lines. The straight adapter shape suits tight piping layouts.

Sustained pressure and temperature rating

The fitting withstands a maximum operating pressure of 200 psi and a maximum operating temperature of 250 degrees Fahrenheit. These limits support continuous service in hot and cold water distribution systems without degradation. EPDM O-ring material maintains seal integrity under thermal cycling.

Bronze body with EPDM seal

The bronze construction meets ASTM B75 and ASTM B88 standards for material quality. An EPDM O-ring provides the press seal, compatible with potable water applications. Press-fit and FNPT ends allow direct transition between copper and threaded components without soldering.

Highlights

  • Press-fit connection installs without soldering
  • Bronze body with EPDM seal handles 200 psi
  • Rated for 250 °F hot-water service
  • Meets ASTM B75 and ASTM B88 standards
  • 3/4 in press to 1/2 in FNPT straight adapter

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79310

Questions about this item

How much heat can the bronze body and EPDM seal handle during continuous hot-water circulation?

The adapter is rated for a maximum operating temperature of 250 Degrees F, so the bronze body and EPDM O-ring remain stable in sustained hot-water service.

Which press tool and jaw set are required to make a leak-free joint on the 3/4 in press-fit end?

A Viega ProPress-compatible tool with the correct 3/4 in copper jaw is needed; the press-fit end follows the ProPress system for potable-water copper tube.

Will the 1/2 in FNPT thread mate directly with the existing 1/2 in MPT nipples on my current supply lines?

Yes, the Side B connection is a 1/2 in FNPT thread designed to screw onto standard 1/2 in male pipe threads.

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