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Bronze 90-degree press-fit elbow with FNPT thread

Viega

Viega 79530 Elbow Bronze Press-fit 1/2" FNPT 3/4

SKU CH-GFJK-HA0AG

Bronze press-fit elbow adapts 1/2" copper tube to 3/4" FNPT for potable water at 200 psi and 250 °F

  • Bronze construction resists corrosion for potable water systems
  • Press-fit connection on 1/2 in copper tube eliminates soldering
  • FNPT 3/4 in thread provides secure female pipe connection
  • 90-degree elbow adapter redirects flow in tight spaces
  • EPDM O-ring seals up to 200 psi at 250 Degrees F

Press-fit elbow for potable water

The Viega 79530 is a bronze crimp elbow that joins a 1/2 in copper tube on the press-fit side to a 3/4 in FNPT thread on the other. It is intended for installers who need a 90-degree change of direction in a potable-water system and want the speed of a press connection without soldering.

EPDM o-ring and ASTM compliance

The factory-fitted EPDM o-ring provides the seal on the press-fit end, so no separate gasket or thread tape is required there. The fitting meets ASTM B75 and ASTM B88, confirming the bronze alloy and dimensional tolerances for copper tube sizes used in North American plumbing.

Press tool required, thread sealant still needed

A compatible press tool and jaw set for 1/2 in copper must be available on site; without it the joint cannot be made. The FNPT end still demands pipe-thread sealant or tape, and the 200 psi and 250 Degrees F limits must not be exceeded or the seal can fail.

Highlights

  • Bronze construction resists corrosion for potable water systems
  • Press-fit connection on 1/2 in copper tube eliminates soldering
  • FNPT 3/4 in thread provides secure female pipe connection
  • 90-degree elbow adapter redirects flow in tight spaces
  • EPDM O-ring seals up to 200 psi at 250 Degrees F

Specifications

BrandVIEGA

Questions about this item

Will the EPDM O-ring need replacement after years of hot potable water at 250°F?

The EPDM O-ring is rated to 250°F and 200 psi, so it should last the system life under normal potable-water conditions.

At what pressure will the bronze body or press joint reach its limit during sustained 200 psi service?

Maximum operating pressure is 200 psi per ASTM B75 and ASTM B88, so sustained use at that level is within the published rating.

Does the bronze fitting add noticeable heat to a mechanical room when water runs at 250°F all day?

Bronze conducts heat, so the fitting will reach water temperature; insulation is recommended if surface heat is a concern.

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