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Bronze inline spring check valve with press connections

Viega

Viega 79050 1-1/4" Press Bronze Spring Check Valve

SKU CH-YJ3Z-KNE7F MPN 79050

Inline spring check valve in low-lead bronze with press connections for 1-1/4 inch pipe

  • TypeDrain Components
  • MaterialHAWA
  • Bronze body resists corrosion for long service life
  • Spring-loaded check stops back-flow at 0.5 psi cracking pressure
  • Press-to-press ends install fast without soldering or threading
  • EPDM seals handle 0 °F to 200 °F water up to 200 psi
  • Rated for horizontal or vertical mounting in any orientation

1-1/4" Press Bronze Check Valve

The Viega 79050 is a spring-loaded check valve built for 1-1/4 inch press connections in plumbing systems. Its low-lead bronze body and EPDM seals suit potable water lines. Installers choose it when a compact inline valve is required to prevent backflow in horizontal or vertical runs.

Low-cracking spring for steady flow

The inline spring mechanism opens at .5 psi, allowing flow to establish with minimal pressure loss during sustained demand. Stainless steel spring construction resists fatigue over repeated cycles, while the bronze body handles continuous water pressure up to 200 psi at elevated temperature. Full-flow design is not claimed, so pressure drop remains present under load.

Rated for 200 °F water service

Maximum operating temperature reaches 200 degrees F with a minimum of 0 degrees F, covering typical hot and cold water loops. Press-by-press joints eliminate open-flame work, reducing installation heat exposure. The valve carries no steam rating, so it must not be used in steam lines. Bronze construction and EPDM seals maintain seal integrity across the stated temperature range.

Highlights

  • Bronze body resists corrosion for long service life
  • Spring-loaded check stops back-flow at 0.5 psi cracking pressure
  • Press-to-press ends install fast without soldering or threading
  • EPDM seals handle 0 °F to 200 °F water up to 200 psi
  • Rated for horizontal or vertical mounting in any orientation

Specifications

TypeDrain Components
MaterialHAWA
BrandViega
Model79050

Questions about this item

How much heat can the 79050 handle during continuous operation?

The valve is rated for a maximum temperature of 200 degrees F and a minimum of 0 degrees F, suitable for hot water systems.

What piping and tools are required to install this press-fit valve?

You need 1-1/4 inch tubing compatible with press connections and a press tool with the correct jaw profile for a secure joint.

Will the 0.5 psi cracking pressure work with an older low-head gravity system?

Yes, the low 0.5 psi cracking pressure allows flow with minimal head pressure, making it compatible with older gravity-fed installations.

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