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20863 Viega ProPress adapter flange 2 - pc Smart Connect technology Copper, 4'' - 8
Manufacturer Resources
Product Specs
- Connection Type:
- P - BP
- Material Type:
- Copper
- Product Dimension:
- 4'' - 8
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Flanges
- Product Type:
- Adapter
- Product Length:
- 4.488"
- Product Height:
- 9.055"
- Product Weight:
- 11.835 lbs
- Product Width:
- 9.055"
- Product Material:
- Copper
Viega 20863 – Frequently Asked Questions
1) What size copper pipe does the Viega 20863 ProPress adapter flange press onto?
The Viega 20863 adapter flange is a 4 inch copper ProPress fitting. One end presses onto 4 inch copper tube; the other side is a flange face for bolting to mating flanged equipment such as a pump, valve, or backflow assembly.
2) Do I need a special press tool jaw for a 4 inch ProPress flange?
Yes. At 4 inch, ProPress copper connections are made with a large diameter press tool and the matching 4 inch actuator ring and adapter jaw rather than a standard jaw set. The press ring is not included with the 20863 flange, so plan on having the 4 inch ring on the truck before you get to the riser.
3) Is the Viega 20863 a two-piece flange, and why does that matter on install?
It is a 2-piece design: the press adapter and a separate rotating flange ring. The loose ring lets you spin the bolt holes into alignment with the mating flange after the press is made, which is the difference between a clean tie-in and cutting the pipe again when the holes land off pattern.
4) How do I know a 4 inch ProPress joint actually sealed?
The 20863 uses Viega Smart Connect technology: the sealing element is formed so an unpressed fitting leaks visibly during pressure test instead of holding temporarily. On a 4 inch main that is the feature that keeps a missed press from showing up behind finished wall.
5) Can I use the Viega 20863 flange on steel or PEX pipe?
No. This flange is a copper press fitting sized for 4 inch copper tube only. For 4 inch carbon steel you need a MegaPress-type steel fitting, and PEX does not run at this size in the ProPress line.
6) Are gasket and bolts included with the Viega ProPress 4 inch adapter flange?
The 20863 ships as the press adapter and flange ring. The flange gasket and the bolt, nut, and washer set for the flanged joint are separate items, so order them with the fitting along with the mating companion flange if the equipment does not already have one.
7) What is the connection configuration on the Viega 20863?
Press by bolted flange. One end is a ProPress copper socket for 4 inch tube, the other is a flat flange face, so it is the transition you use when copper piping meets flanged equipment and you do not want to solder a 4 inch joint in place.
8) Where is the Viega 20863 ProPress flange manufactured?
Made in Germany. For public and institutional work where country of origin has to be documented on the submittal, that is the declared origin for this fitting.
How fast can I get the Viega 20863 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 20863 come with a warranty?
Absolutely. The Viega 20863 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 20863?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Viega 20863 from ZenSupply?
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and
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every order.
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