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Viega MegaPress 4860 carbon steel union 1 inch press-fit straight fitting zinc nickel-plated finish

Viega

Viega MegaPress 4860 Carbon Steel Union 1 in

SKU CH-64WF-F18GS

Carbon steel press-fit union joins 1 in pipes with EPDM seal rated to 200 psi and 250 °F

  • Press-fit union installs without welding or threading
  • Carbon-steel body with zinc-nickel plating resists corrosion
  • EPDM O-ring seals up to 200 psi and 250 °F
  • Straight 1-inch union joins pipes of equal size
  • MegaPress 4860 system approved for non-potable water

Viega MegaPress 4860 Union

This carbon-steel union joins two 1-inch pipes in non-potable water systems. It uses press-fit connections on both ends so no threading or welding is required. The zinc nickel-plated finish resists corrosion in typical plumbing environments.

Press-Fit Ends With EPDM O-Rings

Each end includes an EPDM O-ring that seals when pressed with the correct tool. The straight union shape keeps the flow path direct and allows the joint to be separated for maintenance. No additional sealant or tape is needed during assembly.

Installs With Standard Press Tool

A compatible press tool and jaw set complete the connection in seconds. The fitting must be fully inserted to the stop before pressing to avoid leaks. Misaligned pipe cuts or debris on the pipe surface are the most common causes of seal failure.

Highlights

  • Press-fit union installs without welding or threading
  • Carbon-steel body with zinc-nickel plating resists corrosion
  • EPDM O-ring seals up to 200 psi and 250 °F
  • Straight 1-inch union joins pipes of equal size
  • MegaPress 4860 system approved for non-potable water

Specifications

BrandViega

Questions about this item

How often should the EPDM O-ring be inspected or replaced on this 1 in carbon steel union?

The EPDM O-ring should be inspected periodically for wear or degradation, especially in non-potable water systems, and replaced if any cracking or loss of elasticity is observed to maintain a reliable seal.

What pressure limit governs sustained operation of this press-fit union?

The maximum operating pressure is 200 psi, which is the primary limit that must not be exceeded during continuous use in the piping system.

How does the zinc nickel-plated finish hold up under continuous 250 °F operation?

The zinc nickel-plated coating provides corrosion resistance at the maximum operating temperature of 250 °F, maintaining surface integrity during prolonged high-temperature service.

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