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78047 Viega ProPress coupling With stop Smart Connect technology Copper, 1/2'' x 1/2''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2
- Country Of Origin:
- Made in USA
- Material Type:
- Copper
- Product Dimension:
- 1/2'' x 1/2''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Coupling
- Product Length:
- 0.957"
- Product Height:
- 0.957"
- Product Weight:
- 0.08 lbs
- Product Width:
- 1.614"
Viega 78047 – Frequently Asked Questions
1) What size copper tubing does the Viega 78047 ProPress coupling join?
The Viega 78047 is a 1/2 inch by 1/2 inch press coupling, so it joins two runs of 1/2 inch copper tube in a straight line. Both ends are press ends (P1 x P2), meaning no soldering and no threading on either side.
2) What does "with stop" mean on a ProPress coupling, and when would I want one without a stop?
A coupling with a stop has an internal shoulder at the midpoint, so each tube end bottoms out at a fixed insertion depth. That gives you a repeatable, correct depth on both sides and is the normal choice for new runs. A coupling without a stop (a slip coupling) lets the tube pass through, which is what you need for a repair where you cannot spring the pipe apart to get a fitting on. The 78047 is the with-stop version in 1/2 inch.
3) Will the Viega 78047 work on PEX or CPVC?
No. The 78047 is a copper press coupling and its press ends are sized for 1/2 inch copper tube only. PEX needs a PEX press or expansion fitting, and CPVC needs solvent weld or a transition fitting. Putting a copper press jaw on plastic pipe will not make a sound joint.
4) What is Viega Smart Connect on the 78047 coupling and why does it matter on a big job?
Smart Connect is a feature of the ProPress sealing element that leaves an unpressed connection deliberately leaky during pressure testing. Fill the system, and any joint you missed weeps so you find it before the walls close. On a 1/2 inch branch run with dozens of couplings, that is the difference between finding a skipped press at test and finding it after drywall.
5) How much room do I need around a 1/2 inch ProPress coupling to get the jaw on it?
The fitting itself is compact: 1.614 inches long over the body with a 0.957 inch profile, and it weighs 0.08 lbs. The clearance that actually governs is the press jaw, which needs to swing fully around the fitting and close square to the pipe. In tight joist bays or against a wall, plan the jaw approach before you cut the pipe.
6) What part number do I order for a 1/2 inch ProPress copper coupling with stop?
Viega part number 78047. That is the 1/2 inch x 1/2 inch copper ProPress coupling with stop, with the Smart Connect sealing element.
7) Is the Viega 78047 coupling made in the USA?
Yes, the 78047 ProPress coupling is made in the USA, which is what a lot of government, healthcare and education procurement specs need to see on the submittal.
How fast can I get the Viega 78047 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 78047 come with a warranty?
Absolutely. The Viega 78047 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 78047?
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