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77402 Viega ProPress tee Smart Connect technology Copper, 3/4'' x 3/4'' x 1/2''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2 x P3
- Material Type:
- Copper
- Product Dimension:
- 3/4'' x 3/4'' x 1/2''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Tees
- Product Type:
- Tee
- Product Length:
- 1.248"
- Product Height:
- 1.996"
- Product Weight:
- 0.282 lbs
- Product Width:
- 3.189"
- Product Material:
- Copper
Viega 77402 – Frequently Asked Questions
1) Can I use the Viega 77402 ProPress tee on PEX or on galvanized steel pipe?
No. This is a copper press tee with press sockets sized for copper tube, so it does not accept PEX tubing or thread onto steel pipe. For PEX you need a PureFlow fitting, and for steel you need a MegaPress fitting or a threaded adapter to transition out of copper first.
2) Are all three ends of the Viega 77402 tee press ends, or is one threaded or sweat?
All three openings are press. The connection type is listed as P1 x P2 x P3, meaning press on the run and press on the branch. There is no threaded or solder end on this tee, so if you need a threaded takeoff you want a press x FPT or press x MPT tee instead.
3) Do I need a special tool or jaw to install the Viega 77402 press tee?
Yes, a press tool is required. Press copper fittings are made up with a press tool and the jaw matching each end size, so for the 77402 you need 3/4 inch jaws for the run and a 1/2 inch jaw for the branch. There is no solder, flux, or torch involved, which is why these get specified for occupied buildings and no-hot-work areas.
4) Is the Viega 77402 tee copper or bronze, and can I use it on a copper water line?
It is a copper fitting, listed as copper material, so it is made for pressing onto hard copper tube in potable water and hydronic lines. Copper press fittings are the matching material for copper tube runs, which keeps you from mixing dissimilar metals mid-run.
5) What is Smart Connect on the Viega 77402 and why does it matter on a punch list?
Smart Connect is Viega's feature that lets an unpressed connection leak visibly during pressure testing instead of holding, so a joint you skipped shows up at test rather than inside a finished wall. On a job with dozens of branch takeoffs that is the difference between finding a missed press at test and finding it after drywall.
6) How much space do I need around the Viega 77402 tee in a tight joist bay or wall cavity?
The fitting itself measures 3.189 inches across its width, 1.996 inches in height, and 1.248 inches in length. Add clearance beyond that for the press tool jaws to swing onto each socket, which is usually what decides whether the joint can be made in a cavity, not the fitting size.
How fast can I get the Viega 77402 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 77402 come with a warranty?
Absolutely. The Viega 77402 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 77402?
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installation tips, and troubleshooting. Contact Us
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