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28790 Viega MegaPressG coupling No stop Smart Connect technology Carbon steel, 3" x 3"
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2
- Material Type:
- Carbon Steel
- Product Dimension:
- 3" x 3"
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Tee
- Product Length:
- 5.984"
- Product Height:
- 4.177"
- Product Weight:
- 2.413 lbs
- Product Width:
- 4.177"
- Product Material:
- Carbon steel
Viega 28790 – Frequently Asked Questions
1) What size pipe does the Viega MegaPressG 28790 coupling join?
The MegaPressG 28790 is a 3 inch by 3 inch coupling, so it joins two runs of 3 inch carbon steel pipe. Both ends are press connections (P1 x P2), meaning it presses onto pipe at each end rather than threading.
2) Is the Viega 28790 a stop coupling or a no-stop coupling?
It is a no-stop coupling. There is no internal shoulder, so the fitting can slide along the pipe. That is what you want for a repair or a tie-in where you cannot pull the pipe apart, but it means you have to mark your insertion depth on both ends yourself before pressing. If you want the pipe to bottom out on its own, order the stop version instead.
3) Can I use the MegaPressG 28790 coupling on gas lines?
MegaPressG is Viega's gas-rated press system, and the 28790 is a MegaPressG carbon steel fitting with Smart Connect technology. It is built for black iron / carbon steel gas piping rather than for the water-side MegaPress line. Always install to the gas code in force for your jurisdiction and the fitting's listed pressure range.
4) What does Smart Connect on a Viega press fitting actually do for me on an inspection?
Smart Connect is a deliberate feature in the sealing element that lets an unpressed connection leak when the system is tested. Instead of finding a missed press after the walls close up, you find it at pressure test. On a large job with hundreds of 3 inch joints, that is the feature doing the most work.
5) Is the Viega 28790 coupling carbon steel or stainless?
Carbon steel, which is what matches standard black iron pipe on gas and similar carbon steel systems. If your piping is stainless, a carbon steel fitting is the wrong material and you should be looking at the stainless MegaPress line instead.
How fast can I get the Viega 28790 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Viega 28790 come with a warranty?
Absolutely. The Viega 28790 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Viega 28790?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Viega 28790 from ZenSupply?
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and
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every order.
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