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Copper 45-degree press-fit elbow, 1-inch connections, EPDM seal

Viega

Viega ProPress 45° elbow 1 in × 1 in copper 77028

SKU CH-9TB8-QFCAX

A 45-degree copper press-fit elbow joins two 1-inch tubes for potable water at up to 200 psi and 250°F

  • Press-fit copper elbow installs without soldering
  • 45-degree angle routes lines around obstacles cleanly
  • EPDM O-ring seals potable water up to 200 psi
  • Rated for 250 °F continuous operating temperature
  • Meets ASTM B75 and ASTM B88 copper standards

Copper press-fit elbow for potable water systems

The Viega ProPress 77028 is a 45-degree elbow that joins two 1-inch copper tubes using press-fit connections on both ends. It is built for potable-water installations where a secure, flame-free joint is required.

Replaces soldered or threaded copper elbows

The press-fit design removes the need for open-flame soldering or pipe threading, cutting installation time and eliminating fire-hazard permits. The jump is worth it on retrofit jobs, occupied buildings or any site where hot-work approvals delay progress.

Limited to copper tube and 200 psi at 250 °F

The fitting meets ASTM B75 and ASTM B88 and carries an EPDM O-ring rated for 200 psi maximum operating pressure and 250 °F maximum temperature. It cannot be used with steel, plastic or dissimilar-metal tubing, nor in systems that exceed those pressure or temperature limits.

Highlights

  • Press-fit copper elbow installs without soldering
  • 45-degree angle routes lines around obstacles cleanly
  • EPDM O-ring seals potable water up to 200 psi
  • Rated for 250 °F continuous operating temperature
  • Meets ASTM B75 and ASTM B88 copper standards

Specifications

BrandVIEGA PROPRESS

Questions about this item

What copper tube size fits the 1 in ProPress 45° elbow?

Both ends accept 1 in copper tube size for a straight press-fit connection.

How do you install the 77028 elbow and what step is often missed?

Insert tube fully into each press-fit end, then crimp with a ProPress tool; skipping the depth mark check causes leaks.

When should the EPDM O-ring on this fitting be replaced?

Replace the O-ring if you see cracking, hardening, or any weeping at the joint after the system reaches 250 Degrees F.

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