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Bronze press-fit tee with FNPT branch, new condition

Viega

Viega 79580 Bronze Press-Fit Tee 1/2" 1/2" FNPT 1/2

SKU CH-Q8AQ-08H6B

Bronze press-fit tee connects two 1/2" copper lines to a 1/2" FNPT branch, rated to 200 psi

  • Bronze body resists corrosion in potable water systems
  • Press-fit ends on two branches speed installation without soldering
  • Female NPT branch connects threaded pipe or valves directly
  • EPDM O-ring seals up to 200 psi operating pressure
  • Center stop dimple ensures correct insertion depth every time

Bronze Press-Fit Tee for Potable Water

The Viega 79580 is a bronze crimp tee fitting designed for potable water systems. It connects two 1/2 inch press-fit copper tube ends to a 1/2 inch FNPT threaded branch. An EPDM O-ring and center stop dimple are included for secure sealing.

Installers needing a press-to-thread transition

This tee suits plumbers joining press-fit copper lines to threaded components in 1/2 inch systems. It is not for installers working with larger tube sizes, different thread types, or applications exceeding the 200 psi pressure rating. Buyers needing sweat, push-fit, or PEX connections should look elsewhere.

Press-tool installation with standard prep

Installation requires a compatible press tool and properly prepared 1/2 inch copper tubing cut square and deburred. The integrated center stop dimple helps verify full insertion depth. The most common issue is leaking caused by skipping the deburring step or using an incompatible jaw set for the press profile.

Highlights

  • Bronze body resists corrosion in potable water systems
  • Press-fit ends on two branches speed installation without soldering
  • Female NPT branch connects threaded pipe or valves directly
  • EPDM O-ring seals up to 200 psi operating pressure
  • Center stop dimple ensures correct insertion depth every time

Specifications

BrandViega

Questions about this item

Which press tool and jaw size are needed to install the 1/2" press-fit ends of the Viega 79580 tee?

Use a Viega-compatible press tool with a 1/2" jaw set approved for bronze press fittings; the tool must deliver the force specified by Viega for 1/2" copper tube size connections.

Can the 1/2" FNPT branch of the 79580 tee connect directly to existing 1/2" male NPT threads on older brass or copper pipe?

Yes, the 1/2" FNPT branch accepts standard 1/2" male NPT threads; apply suitable thread sealant and tighten to the recommended torque for a leak-free joint.

After pressing the 1/2" ends and threading the FNPT branch, how do I verify the 79580 tee is sealed up to its 200 psi rating?

Pressurise the system with water to the design test pressure, hold for the required time, and inspect all three connections for any sign of leakage.

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