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Viega MegaPress 4812 carbon steel female adapter 1-1/4 inch press fitting

Viega

Viega MegaPress 4812 Carbon Steel Female Adapter 1-1/4 in 200 psi 250 F

SKU CH-X70S-WA92Q

Connects 1-1/4 inch pipe via press-to-thread carbon steel fitting rated for 200 psi and 250 F

  • Press-ready carbon steel for fast, flame-free installation
  • Female pipe thread connects directly to threaded pipe systems
  • Rated to 200 psi for reliable performance under pressure
  • Withstands temperatures up to 250 °F in hot-water applications
  • MegaPress 4812 design ensures secure, leak-resistant joints

Carbon Steel Female Adapter

The Viega MegaPress 4812 is a carbon steel press fitting designed to join 1-1/4 inch pipe to a female pipe thread of the same size. It is intended for professional plumbing and hydronic installations that require a secure, flame-free connection.

Verify Press Tool and Pipe Compatibility

Before ordering, confirm that your press tool and jaws are approved for MegaPress carbon steel fittings in the 1-1/4 inch size. Ensure the existing pipe is carbon steel, cut square and deburred to the correct insertion depth for a leak-free seal.

Suits Press-Fit Carbon Steel Systems.

This adapter suits installers who need a 200 psi, 250 °F rated press connection on carbon steel piping. It is not suitable for copper, stainless steel or plastic pipe systems, nor for applications requiring a different pressure or temperature rating.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $24.99
Pricier than about 61% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameViega

Questions about this item

Does the Viega MegaPress 4812 adapter come with the press tool and sealing elements, or must they be purchased separately?

The adapter is supplied as a single carbon-steel fitting with an integrated sealing element for the press end. A compatible MegaPress press tool and jaws for 1-1/4 in tubing are sold separately.

How do I decide between the available versions of this 1-1/4 in female adapter for my piping system?

This model 4812 is a press-by-female-pipe-thread adapter in 1-1/4 in carbon steel rated for 200 psi and 250 °F. Choose it when you need a direct press connection to female NPT threads at those limits.

What does the 200 psi rating mean when the adapter is installed in a live hydronic system?

It indicates the maximum continuous working pressure the carbon-steel body and press seal can safely handle at temperatures up to 250 °F in a properly installed system.

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