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Bronze ProPress straight adapter with press-fit and MNPT ends

Viega

Viega 79245 ProPress Straight Adapter 1 in Press-Fit x 1 in MNPT 2-3/16 in L trap

SKU CH-4RTH-84MH1 MPN 79245

Bronze straight adapter joins 1 in press-fit to 1 in MNPT with an EPDM seal, rated to 200 psi and 250 °F

  • TypeDrain Components
  • MaterialHAWA
  • Press-fit connection installs without soldering for faster work
  • Bronze body with EPDM seal handles 200 psi and 250 °F
  • Straight adapter joins 1 in press-fit to 1 in MNPT threads
  • Meets ASTM B75 and ASTM B88 for potable-water systems
  • 2-3/16 in overall length fits tight drain layouts

Straight Press-Fit Adapter for Potable Water

The Viega 79245 is a bronze straight adapter that joins a 1 in copper press-fit connection to a 1 in male NPT thread. It is designed for potable-water systems and carries a maximum operating pressure of 200 psi and a maximum temperature of 250 Degrees F.

EPDM O-Ring Seals the Press Connection

The factory-fitted EPDM O-ring provides the seal on the press-fit side, removing the need for solder, flux or thread sealant at that joint. The bronze body meets ASTM B75 and ASTM B88 material standards for drinking-water applications.

Verify Pipe Size and Press Tool Compatibility

Confirm that the existing copper tubing is 1 in CTS and that the mating female thread is 1 in NPT. A compatible press tool and jaw set for 1 in Viega ProPress fittings is required to complete the connection.

Highlights

  • Press-fit connection installs without soldering for faster work
  • Bronze body with EPDM seal handles 200 psi and 250 °F
  • Straight adapter joins 1 in press-fit to 1 in MNPT threads
  • Meets ASTM B75 and ASTM B88 for potable-water systems
  • 2-3/16 in overall length fits tight drain layouts

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79245

Questions about this item

How often should the EPDM O-ring be inspected or replaced on the 1 in press-fit connection?

The EPDM O-ring is rated for 250 °F and 200 psi; inspect it during routine system checks and replace if any cracking or hardening appears.

What pressure limit governs continuous operation of this bronze adapter?

The maximum operating pressure is 200 psi, which is the first limit reached under sustained use.

How much heat does the fitting transfer when hot water runs all day at the rated temperature?

At the 250 °F maximum operating temperature the bronze body will become very hot; ensure nearby insulation and clearances meet local code.

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