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Copper ProPress 45 degree street elbow 1 inch press-fit to FTG

Viega

Viega 77058 ProPress 45° street elbow 1" x 1" trap

SKU CH-EEVM-QYKP9

A 45-degree street elbow joins 1-inch copper tubes in potable-water systems with press-fit and FTG ends rated to 200 psi and 250 degrees F

  • Copper construction resists corrosion for long service life
  • 45° street elbow enables smooth directional changes in tight spaces
  • Press-fit connection installs without soldering for faster assembly
  • EPDM O-ring seals up to 200 psi and 250°F
  • Meets ASTM B75 and ASTM B88 standards for potable water

Copper ProPress 45° street elbow 1

The Viega 77058 is a copper press-fit fitting designed for potable-water systems. It connects a 1 in copper tube on the press side to a 1 in copper tube on the FTG side at a 45-degree angle. The EPDM O-ring provides the seal without solder or flux. It meets ASTM B75 and ASTM B88 standards for copper tube.

Press-tool installation

A compatible ProPress tool and the correct 1 in jaw are required to complete the joint. The tube must be cut square, deburred and marked to the full insertion depth before pressing. An incomplete press or a misaligned jaw leaves a leak path that will show up at test pressure. Debris on the O-ring seat can also prevent a proper seal.

Rated for 200 psi and 250 °F in potable water only

The fitting is listed for a maximum operating pressure of 200 psi and a maximum operating temperature of 250 °F. It is not rated for gas, compressed air or hydronic systems that exceed those limits. The copper material and EPDM seal constrain use to compatible fluids and temperatures within the stated range.

Highlights

  • Copper construction resists corrosion for long service life
  • 45° street elbow enables smooth directional changes in tight spaces
  • Press-fit connection installs without soldering for faster assembly
  • EPDM O-ring seals up to 200 psi and 250°F
  • Meets ASTM B75 and ASTM B88 standards for potable water

Specifications

BrandVIEGA PROPRESS

Questions about this item

How can I confirm the 45° street elbow is sealing correctly after pressing it onto 1" copper tube?

Perform a pressure test up to 200 psi and inspect the EPDM O-ring joints for leaks; the copper body should show no deformation at the press-fit and FTG connections.

What comes with the 77058 fitting and what must I supply separately?

The box contains the copper 45° street elbow with pre-installed EPDM O-rings; you must provide 1" copper tubing, a compatible ProPress press tool and jaws, and any required pipe preparation supplies.

Which version of this fitting matches a 1" potable water line rated for 250°F?

The 77058 model is the 1" x 1" copper 45° street elbow built to ASTM B75 and ASTM B88, rated 200 psi at 250°F for potable water applications.

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