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Bronze straight trap fitting with FTG and FNPT ends

Viega

Viega 79440 Bronze Straight Trap FTG 3/4 in FNPT 1/2 in

SKU CH-XMBE-4TMZC MPN 79440

Bronze straight adapter connects 3/4 inch copper tube to 1/2 inch FNPT, rated for 200 psi and 250 degrees F

  • TypeDrain Components
  • MaterialHAWA
  • Bronze construction resists corrosion in potable water systems
  • Straight adapter joins 3/4 in FTG to 1/2 in FNPT connections
  • EPDM O-ring seals reliably up to 250 degrees F
  • Rated for 200 psi maximum operating pressure
  • Overall length 1 25/32 in fits tight installations

Bronze Crimp Adapter for Potable Water

The Viega 79440 is a straight bronze crimp adapter designed for potable water systems. It connects a 3/4 in FTG copper tube on one side to a 1/2 in FNPT pipe thread on the other. An EPDM O-ring provides the seal at the crimp connection. The fitting is manufactured to handle the demands of residential and commercial plumbing installations.

Replaces Threaded or Sweat Transition Fittings

This adapter replaces the need for separate threaded couplings or sweat fittings when joining dissimilar pipe types. The jump is worth it when a installer needs a single, code compliant component to transition from copper tube to female pipe threads without additional soldering or threading steps. It reduces potential leak points by consolidating the connection into one factory made fitting.

Rated for 200 psi at 250 Degrees F

Under sustained load the fitting maintains its pressure rating of 200 psi up to a maximum operating temperature of 250 degrees F. The bronze body and EPDM seal resist degradation from continuous hot water circulation. The straight through design minimises flow restriction during extended demand periods. Overall length is 1 25/32 in.

Highlights

  • Bronze construction resists corrosion in potable water systems
  • Straight adapter joins 3/4 in FTG to 1/2 in FNPT connections
  • EPDM O-ring seals reliably up to 250 degrees F
  • Rated for 200 psi maximum operating pressure
  • Overall length 1 25/32 in fits tight installations

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79440

Questions about this item

What size copper tubing does the 3/4 in FTG end of the Viega 79440 accept?

The FTG end is sized for 3/4 in copper tube and is joined by crimping with an appropriate tool and jaw.

Which sealing component is included on the 1/2 in FNPT side of the 79440 and what should be checked during installation?

An EPDM O-ring provides the seal; verify it is seated and undamaged before threading the adapter into the female NPT port.

What temperature and pressure limits determine when the bronze adapter must be replaced?

Replace the fitting if the system exceeds 250 Degrees F or 200 psi, or if the bronze body shows corrosion or deformation.

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