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
Copper ProPress 90-degree elbow fitting with press-fit ends

Viega

Viega 77027 ProPress 90 elbow 1" x 1" trap

SKU CH-5JTK-VGFFB

A copper 90-degree press-fit elbow joins two 1 in tubes for potable water systems, rated to 200 psi and 250 Degrees F with an EPDM O-ring

  • MaterialHAWA
  • Press-fit copper joint installs without flame or solder
  • 90-degree elbow routes 1-inch lines in tight spaces
  • EPDM O-ring seals potable water up to 200 psi
  • Rated for 250 °F continuous service temperature
  • Meets ASTM B75 and B88 copper tube standards

ProPress 90° elbow for 1" copper tube

The Viega 77027 ProPress 90° elbow joins two 1" copper tubes at a right angle using press-fit connections on both ends. It is intended for potable-water systems where a secure, flame-free joint is required. The fitting body is copper with an EPDM O-ring seal and conforms to ASTM B75 and ASTM B88 standards.

Sustained-pressure performance up to 200 psi

Under continuous service the fitting maintains its seal at the rated maximum operating pressure of 200 psi and maximum operating temperature of 250 °F. The press connection and EPDM O-ring resist creep and thermal cycling without the thermal stress that soldered joints can develop. Systems that exceed either limit need a different fitting class.

Press-tool installation avoids common soldering

A calibrated press tool and the correct 1" jaw set create the joint in seconds without flux, solder or open flame, eliminating cold joints, overheating and fire-hazard paperwork. The most frequent error is pressing with an undersized jaw or a worn tool, which leaves an incomplete crimp; visual inspection of the press indicator and a pressure test catch the fault before the system is closed up.

Highlights

  • Press-fit copper joint installs without flame or solder
  • 90-degree elbow routes 1-inch lines in tight spaces
  • EPDM O-ring seals potable water up to 200 psi
  • Rated for 250 °F continuous service temperature
  • Meets ASTM B75 and B88 copper tube standards

Specifications

MaterialHAWA
BrandVIEGA PROPRESS

Questions about this item

Does the 250-degree maximum temperature mean the fitting runs hot during normal use?

No, 250 degrees F is the rated limit for the copper and EPDM seal; under typical hot-water temperatures the fitting stays close to the water temperature.

What tool is required to press the 77027 elbow onto 1-inch copper tube?

A Viega ProPress press tool with the correct 1-inch jaw set is needed to create the leak-free press-fit connection on both ends.

Will this 90-degree elbow meet the ASTM B75 and B88 requirements of my existing copper piping?

Yes, the fitting is manufactured to ASTM B75 and ASTM B88, so it matches the material and dimensional standards of standard copper tube.

Also in this aisle

People compared these

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