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Bronze ProPress straight adapter with EPDM O-ring, 2 29/32 in overall length

Viega

Viega 79415 ProPress adapter 1-1/2" x 1-1/2" trap

SKU CH-70BV-KG3SJ MPN 79415

A bronze ProPress adapter with EPDM O-ring connects 1-1/2 inch copper tube to 1-1/2 inch male NPT for potable water systems up to 200 psi and 250 degrees F

  • TypeDrain Components
  • MaterialHAWA
  • ProPress bronze body resists corrosion in potable water systems
  • 200 psi pressure rating handles demanding supply lines
  • EPDM O-ring seals reliably up to 250 Degrees F
  • Straight adapter joins 1-1/2 in copper tube to 1-1/2 in MNPT threads
  • 2 29/32 in overall length fits tight installation spaces

Viega ProPress Adapter 1-1/2

The Viega 79415 is a bronze crimp adapter fitting designed for potable water systems. It connects a 1-1/2 inch FTG fitting to a 1-1/2 inch MNPT pipe thread using ProPress technology. The fitting features an EPDM O-ring and measures 2 29/32 inches in overall length.

Installers needing FTG to MNPT transition

This adapter suits plumbers joining copper tube to male pipe threads in straight configurations. It is rated for 200 psi maximum operating pressure and 250 degrees F maximum temperature. Buyers requiring a different connection type, such as press-to-press or a reducing size, should look at other fittings.

FTG x MNPT connection configuration

The defining specification is the straight adapter shape joining a 1-1/2 inch copper tube size FTG end to a 1-1/2 inch MNPT end. This specific fitting geometry determines compatibility with the piping layout. Verify the required connection types before purchase.

Highlights

  • ProPress bronze body resists corrosion in potable water systems
  • 200 psi pressure rating handles demanding supply lines
  • EPDM O-ring seals reliably up to 250 Degrees F
  • Straight adapter joins 1-1/2 in copper tube to 1-1/2 in MNPT threads
  • 2 29/32 in overall length fits tight installation spaces

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79415

Questions about this item

What does the ProPress adapter's 200 psi pressure rating mean for potable water installations?

The 200 psi maximum operating pressure limits the adapter to residential and light commercial potable water systems that stay below this threshold.

What copper tube size and overall length must the space accommodate for this 1-1/2 inch straight adapter?

The adapter requires 1-1/2 inch copper tube on the press end and measures 2 29/32 inches overall length for straight pipe runs.

How is the ProPress connection made on the FTG end and what common step do installers miss?

Use a ProPress tool with the correct jaw to crimp the FTG end onto 1-1/2 inch copper tube; the step often missed is fully inserting the tube until it hits the internal stop before pressing.

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