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Bronze ProPress adapter with EPDM O-ring, straight 3/4 inch fitting

Viega

Viega 79445 ProPress adapter 3/4" x 3/4" trap

SKU CH-6M7W-XEBK7 MPN 79445

Copper-to-threaded bronze adapter with EPDM seal rated for 200 psi and 250 °F

  • TypeDrain Components
  • ProPress press-fit eliminates soldering on potable water lines
  • Bronze body with EPDM seal rated for 200 psi and 250 °F
  • Straight adapter joins 3/4 in copper tube to 3/4 in FNPT thread
  • 1 13/16 in overall length fits tight trap installations
  • Model 79445 approved for potable water applications

ProPress bronze adapter for potable water

The Viega 79445 is a straight crimp adapter that joins a 3/4 in copper tube to a 3/4 in female NPT thread. It is built for potable-water systems and uses a factory-fitted EPDM O-ring to seal the joint without solder or flux. Bronze construction resists corrosion in domestic supply lines. The fitting carries model number 79445 and meets a maximum operating pressure of 200 psi.

Press-tool connection frees installers from open

A compatible ProPress tool compresses the fitting onto the tube in seconds, eliminating the need for torches, solder wire or flux on site. The FTG end slips over the copper tube while the FNPT end accepts standard threaded pipe or valves. This press-to-connect method reduces fire-risk paperwork and speeds up rough-in and retrofit work alike. No additional sealing compounds are required at the crimp joint.

Rated for 250 °F and 200 psi in straight runs

The adapter handles hot-water recirculation loops and standard pressure tests within its 250 °F temperature ceiling and 200 psi pressure ceiling. Its 1 13/16 in overall length fits tight mechanical rooms without extra offsets. It is not suited for gas, steam or high-vibration lines that exceed the listed ratings. Installers needing larger diameters or angled configurations must select different fittings.

Highlights

  • ProPress press-fit eliminates soldering on potable water lines
  • Bronze body with EPDM seal rated for 200 psi and 250 °F
  • Straight adapter joins 3/4 in copper tube to 3/4 in FNPT thread
  • 1 13/16 in overall length fits tight trap installations
  • Model 79445 approved for potable water applications

Specifications

TypeDrain Components
BrandViega
Model79445

Questions about this item

How long can the bronze fitting hold 200 psi before the EPDM seal degrades?

The fitting is rated for 200 psi maximum operating pressure and 250 °F maximum operating temperature; sustained use at those limits is what the bronze body and EPDM O-ring are designed to withstand.

Does the adapter get hot or make noise when water runs continuously at 200 psi?

The bronze body and EPDM seal operate silently and without measurable heat rise at the rated 200 psi and 250 °F; no moving parts mean no noise and negligible thermal gain.

What press tool and jaw size are required to install this 3/4 in ProPress adapter?

A Viega ProPress tool with a 3/4 in jaw set is needed to crimp the FTG copper end; the FNPT thread then connects directly to standard 3/4 in pipe.

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