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Steel MegaPress coupling with zinc-nickel finish and rolled centre stop

Viega

Viega 25015 MegaPress coupling with stop 1-1/4" x 1-1/4

SKU CH-3NWM-B77X6

Press-fit steel coupling joins two 1-1/4 in pipes with an EPDM O-ring and zinc-nickel finish

  • Press-fit connection eliminates open flame
  • EPDM O-ring seals non-potable water lines
  • Zinc nickel-plated steel resists corrosion
  • Rolled centre stop ensures correct insertion depth
  • 4 11/32 in overall length fits tight spaces

Viega MegaPress coupling with stop

The Viega MegaPress coupling is a straight steel connector designed for non-potable water systems. It joins two pipes of identical size using a press-fit method that does not require threading or welding. The fitting includes a rolled centre stop to control insertion depth on both ends. Installers working with carbon steel piping will find it compatible with standard press tools.

Press-fit joint behaviour under pressure

The zinc nickel-plated steel body resists corrosion while maintaining structural integrity during sustained system pressure. EPDM O-rings on each press connection provide a consistent seal that accommodates thermal expansion and vibration without loosening. The rolled centre stop ensures both pipe ends bottom out evenly, preventing over-insertion that could restrict flow or stress the seal over time.

Press-fit sizing constraints

This coupling accepts only 1-1/4 inch pipe on each side, so it cannot join different diameters or adapt to threaded ends. The overall length of 4 11/32 inches determines the minimum straight run required in the layout. Because the connection is permanent once pressed, the fitting is not suited for systems that require frequent disassembly or reconfiguration.

Highlights

  • Press-fit connection eliminates open flame
  • EPDM O-ring seals non-potable water lines
  • Zinc nickel-plated steel resists corrosion
  • Rolled centre stop ensures correct insertion depth
  • 4 11/32 in overall length fits tight spaces

Specifications

BrandViega

Questions about this item

Does the MegaPress coupling generate heat or noise when the system runs continuously?

This is a passive steel press-fit fitting with an EPDM O-ring and zinc-nickel coating; it has no moving parts and produces no heat or sound during operation.

What tool is required to press the 1-1/4" MegaPress coupling onto the pipe?

A compatible MegaPress press tool and the correct 1-1/4" jaw set are needed to create a leak-free joint on each end.

Can the 1-1/4" MegaPress coupling connect directly to existing threaded steel pipe?

No, both ends are press-fit only; a separate male or female threaded adapter must be pressed onto the old pipe first.

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