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77407 Viega ProPress tee Smart Connect technology Copper, 3/4'' x 3/4'' x 1''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2 x P3
- Country Of Origin:
- Made In Germany
- Material Type:
- Copper
- Product Dimension:
- 3/4'' x 3/4'' x 1''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Tees
- Product Type:
- Tee
- Product Length:
- 1.248"
- Product Height:
- 2.154"
- Product Weight:
- 0.4 lbs
- Product Width:
- 3.74"
Viega 77407 – Frequently Asked Questions
1) Do I need a special tool to install the Viega 77407, or can I solder it?
This is a press fitting, not a solder fitting, so it installs with a press tool and the matching jaws for each end size. You'll need 3/4 inch jaws for the two run ends and a 1 inch jaw or ring for the branch. There's no cup to sweat, and no flame on the joint, which is why these get specified in occupied buildings and retrofit work where hot work permits are a problem.
2) Is the Viega 77407 the same as a 3/4 x 3/4 x 3/4 press tee?
No. The 77407 reduces on the branch only in the sense that the branch is larger, not smaller: it's 3/4 x 3/4 x 1 inch, so the branch outlet takes 1 inch tube while the run stays 3/4. If your branch line is 3/4 inch, this is the wrong part and you want a straight 3/4 inch ProPress tee instead. Ordering by the 77407 part number gets you the 1 inch branch.
3) What does Smart Connect on the Viega ProPress 77407 tee actually do for me on the job?
Smart Connect is Viega's unpressed-joint detection. If a fitting gets left unpressed, the feature lets water or air escape at that connection during pressure test so the installer finds it before the wall closes up. It doesn't change how you press the joint, it just makes a missed press show itself on test. All three ends of the 77407 carry it.
4) Is the Viega 77407 tee copper or bronze, and can I run it on a copper potable water line?
It's a copper-body fitting, so it's the same material as the copper tube it presses onto. That keeps the joint dissimilar-metal free on a copper potable or hydronic run. It is a press fitting, so it goes on hard-drawn or annealed copper tube, not on PEX or steel pipe.
5) How much room do I need around the Viega 77407 tee to get the press jaw in?
The fitting itself measures 3.74 inches wide, 2.154 inches high and 1.248 inches long. Plan clearance beyond that for the jaw body to swing around each end, which is the usual constraint in a tight joist bay or against a wall. Weight is 0.4 lbs, so it needs no support on its own.
How fast can I get the Viega 77407 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 77407 come with a warranty?
Absolutely. The Viega 77407 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 77407?
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