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Bronze straight union trap with press-fit ends, 2 27/32 inches overall length

Viega

Viega 79125 Straight Union Trap, Bronze, Press-Fit 1/2

SKU CH-QP15-EERQB MPN 79125

Straight bronze union trap with press-fit connections for 1/2 in copper tube, rated to 200 psi and 250 °F

  • TypeDrain Components
  • MaterialHAWA
  • Press-fit bronze union installs without soldering using 1/2 in copper tube size
  • EPDM O-ring seals potable water lines up to 200 psi working pressure
  • Straight union design connects two press-fit ends in 2 27/32 in length
  • Bronze body meets ASTM B75 and B88 standards for durable plumbing service
  • Rated for 250 Degrees F maximum temperature in hot water applications

Straight Union Press-Fit 1/2

This Viega 79125 straight union connects two half-inch copper tubes using press-fit ends, removing the need for solder or flux. The bronze body carries an EPDM O-ring on each port for a watertight seal up to 200 psi and 250 degrees Fahrenheit.

Installers on potable-water systems

The fitting suits plumbers who need a fast, flame-free joint on half-inch copper in potable-water lines. It is not for installers working with larger tube sizes, threaded connections, or non-copper pipe materials.

200 psi / 250 °F pressure-temperature rating

The bronze construction and EPDM seals are rated for 200 psi at 250 degrees Fahrenheit, meeting ASTM B75 and ASTM B88. Systems that exceed either limit require a different fitting class.

Highlights

  • Press-fit bronze union installs without soldering using 1/2 in copper tube size
  • EPDM O-ring seals potable water lines up to 200 psi working pressure
  • Straight union design connects two press-fit ends in 2 27/32 in length
  • Bronze body meets ASTM B75 and B88 standards for durable plumbing service
  • Rated for 250 Degrees F maximum temperature in hot water applications

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79125

Questions about this item

Will the EPDM O-ring need periodic replacement on the Viega 79125?

The EPDM O-ring is rated for 250 °F and 200 psi service; replacement is only needed if inspection shows wear or leakage.

What pressure limit is reached first during continuous use?

The fitting is rated to 200 psi maximum operating pressure; sustained pressure above that level would exceed the design limit.

How much heat does the bronze body transfer when hot water runs all day?

Bronze conducts heat efficiently, so the surface will approach the fluid temperature up to the 250 °F rating during extended operation.

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