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20828 Viega ProPress adapter Smart Connect technology Copper, 3'' x 3''
Manufacturer Resources
Product Specs
- Connection Type:
- P x MPT
- Country Of Origin:
- Made In Germany
- Material Type:
- Copper
- Product Dimension:
- 3'' x 3''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Adapters
- Product Type:
- Adapter
- Product Length:
- 3.681"
- Product Height:
- 3.681"
- Product Weight:
- 2.314 lbs
- Product Width:
- 4.803"
Viega 20828 – Frequently Asked Questions
1) What kind of connection does the Viega ProPress 20828 adapter make on each end?
The 20828 is a press-by-thread adapter: one end is a 3 inch ProPress copper press socket, the other is 3 inch male pipe thread (MPT). So it takes a copper press system out to a threaded connection, such as a valve, pump flange nipple, or a run of threaded steel.
2) Will the Viega 20828 press onto 3 inch type L copper tube?
Yes. The press end is sized for 3 inch copper tube and the fitting body itself is copper, so it presses onto standard 3 inch copper water tube with a 3 inch ProPress jaw or ring and actuator.
3) What does Smart Connect mean on this Viega ProPress adapter, and do I still have to press every joint?
Smart Connect is Viega's unpressed-connection feature: a joint left unpressed leaks during pressure test so it gets found before the wall closes. It does not replace pressing. Every 3 inch press socket on the 20828 still has to be fully pressed with the correct 3 inch tool.
4) Do I need a sealant or tape on the threaded side of the Viega 20828?
The MPT side is a conventional taper thread joint, so it gets sealed the normal way with thread sealant or PTFE tape at assembly. Only the press side relies on the sealing element. Thread the fitting up before pressing the copper side where you can, so you are not torquing against a finished press joint.
5) How much room do I need to fit the Viega 20828 3 inch adapter and get a press tool on it?
The adapter body measures 3.681 inches in height and length with a 4.803 inch width, and it weighs 2.314 lbs. Plan clearance beyond that for a 3 inch press ring and actuator, which need full swing around the tube at the press socket. In tight mechanical rooms that jaw clearance, not the fitting, is usually what decides the layout.
6) Should I use a press-to-male-thread adapter or a female thread adapter at a 3 inch valve?
Depends which half of the threaded joint the valve gives you. The 20828 is male pipe thread, so it goes into a female-threaded port, a female valve end, or a coupling. If your valve or equipment presents a male nipple, you want the female-thread version of the adapter instead. Get this backwards and you end up adding a coupling or a nipple to make it up.
7) Is the Viega 20828 the same fitting I would order for a spec that calls out a 3 inch ProPress male adapter?
Yes. Order it as Viega part number 20828, a 3 inch by 3 inch copper ProPress adapter, press by MPT. It is manufactured in Germany. That part number is what a wholesaler or engineer will match against the submittal.
8) Can I use the Viega 20828 to transition copper to threaded steel pipe?
Mechanically yes, the MPT end threads straight into female steel fittings. Keep in mind that copper against ferrous pipe is a dissimilar metal joint, so on water systems where galvanic corrosion is a concern the usual practice is a dielectric transition rather than direct copper-to-steel contact.
How fast can I get the Viega 20828 delivered?
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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 20828 come with a warranty?
Absolutely. The Viega 20828 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 20828?
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