17778 Viega ProPress sealing element FKM, 3/4'' (dull black)
Manufacturer Resources
Product Specs
- Connection Type:
- d (Version)
- Product Dimension:
- 3/4'' (dull black)
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Seals
- Product Type:
- Seal
- Product Length:
- 0.102"
- Product Height:
- 0.835"
- Product Weight:
- 0.005 lbs
- Product Width:
- 0.835"
Viega 17778 – Frequently Asked Questions
1) What size ProPress fitting does the Viega 17778 sealing element fit?
The Viega 17778 is the 3/4 inch ProPress sealing element. One seal goes in one press end, so a 3/4 inch coupling takes two, a 3/4 inch elbow takes two, and a reducing fitting only takes this one on the 3/4 inch side. Order by the socket size, not the pipe you are running.
2) What is the difference between the black FKM ProPress seal and the standard green EPDM one?
Material. The 17778 is FKM and comes dull black; the standard ProPress seal is EPDM and green. Viega colors them differently so an inspector or the next tech can tell at a glance which elastomer is in the joint. Use the one the system spec calls for and keep the whole run consistent, since mixing elastomers in one system defeats the point of the color coding.
3) How do I identify the right Viega sealing element on site if the markings are worn?
Go by color and size. The 17778 is dull black, which is Viega's FKM element, and it is the 3/4 inch size. Measured flat, the element is 0.835 inches across by 0.102 inches thick. If what you pulled out is green, it is EPDM and this is not a like-for-like replacement.
4) Can I reuse a ProPress fitting by swapping in a new sealing element?
A fresh element is what makes a previously pressed or damaged socket serviceable again, and that is the normal reason to buy the 17778 loose. The seal seats in the bead of the 3/4 inch socket before pressing. If the socket bead itself is deformed from a bad press, replace the fitting, not the seal.
5) Where is the Viega 17778 ProPress seal made?
Made in Italy. It is a genuine Viega ProPress sealing element, part number 17778, and it carries the Viega color coding for the FKM compound.
How fast can I get the Viega 17778 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 17778 come with a warranty?
Absolutely. The Viega 17778 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 17778?
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selection,
installation tips, and troubleshooting. Contact Us
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