We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Bronze ProPress straight union, 3/4 inch press-fit ends, EPDM O-ring

Viega

Viega 79130 ProPress union 3/4" x 3/4" trap

SKU CH-PCZ5-906WC MPN 79130

A bronze ProPress union joins 3/4" copper tubes with press-fit ends, rated for 200 psi and 250 °F

  • TypeDrain Components
  • MaterialHAWA
  • Press-fit connections install fast without soldering
  • Bronze body rated to 200 psi for potable water
  • EPDM O-ring seals up to 250 °F
  • Meets ASTM B75 and B88 standards
  • Straight union joins two 3/4 in copper tubes

ProPress Union for Potable Water

The Viega 79130 is a bronze crimp union fitting designed for potable water systems. It joins two 3/4 inch copper tubes using press-fit connections on both ends. The straight union measures 3 5/32 inches overall and uses an EPDM O-ring for sealing.

Suits Press-Fit Copper Installations

Installers working with Viega ProPress tools and 3/4 inch copper tube will find this fitting matches their system. It is not intended for threaded, soldered or push-fit pipework. The fitting also does not serve as a trap or drain body despite its category placement.

Rated for 200 psi and 250 °F

The fitting meets ASTM B75 and ASTM B88 standards and handles a maximum operating pressure of 200 psi at temperatures up to 250 degrees Fahrenheit. These limits define whether the union is appropriate for the planned service conditions.

Highlights

  • Press-fit connections install fast without soldering
  • Bronze body rated to 200 psi for potable water
  • EPDM O-ring seals up to 250 °F
  • Meets ASTM B75 and B88 standards
  • Straight union joins two 3/4 in copper tubes

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79130

Questions about this item

Should I choose the 3/4" ProPress union or a different size for my copper piping?

This ProPress union is sized for 3/4" copper tube on both ends, so select it when your pipe run uses 3/4" tubing.

What does the 200 psi rating mean once the fitting is pressed onto the pipe?

The pressed joint will hold up to 200 psi in potable water service at temperatures up to 250 °F.

Does the ProPress press-fit connection follow a specific standard that limits pressure or temperature?

The bronze body meets ASTM B75 and the copper tube sizing follows ASTM B88, which together define the 200 psi and 250 °F operating limits.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.