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90645 Viega MegaPress coupling With stop Smart Connect technology 316 stainless steel, 2-1/2'' x 2-1/2''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2
- Material Type:
- 316 Stainless Steel
- Product Dimension:
- 2-1/2'' x 2-1/2''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Coupling
- Product Length:
- 4.921"
- Product Height:
- 3.543"
- Product Weight:
- 1.688 lbs
- Product Width:
- 3.543"
- Product Material:
- 316 stainless steel
Viega 90645 – Frequently Asked Questions
1) Can I use the Viega 90645 coupling to join threaded pipe?
No. Both ends of the 90645 are press ends, so the pipe has to be plain-end and cut square with the ends deburred before pressing. If you are tying into threaded pipe, you need a transition fitting with a press end on one side and a thread on the other, not this coupling.
2) Is the Viega 90645 made of stainless steel or carbon steel?
It is 316 stainless steel, body and all. That matters on the job because 316 holds up in corrosive and wash-down environments where a carbon steel MegaPress fitting would not, and it is the version specified for stainless pipe systems rather than black iron.
3) What does "with stop" mean on the Viega 90645 coupling, and when would I want one without a stop?
A coupling with a stop has an internal shoulder in the middle, so each pipe end butts against it and sets its own insertion depth. That is what you want for a normal joint between two pipe ends. A coupling without a stop (a slip or repair coupling) lets the fitting slide along the pipe, which is what you use when you cut out a bad section and cannot spring the pipe apart to get a stopped fitting on. For new joints, the stop version is the one to use because it guarantees full insertion on both sides.
4) What is Smart Connect on a MegaPress fitting and why does it matter for inspection?
Smart Connect is a feature in the sealing element of the Viega 90645 that intentionally leaks a small amount at an unpressed connection during pressure test. The point is that an installer or inspector can find a missed press before the system is put into service, instead of discovering it after walls close up. It does not replace a proper press on every joint, it just makes a skipped one visible.
5) How much space do I need to fit the 2-1/2 inch MegaPress stainless coupling in a tight chase?
The 90645 measures 4.921 inches in length with a 3.543 inch height and 3.543 inch width, and it weighs 1.688 lbs. Keep in mind the press jaw needs clearance around the fitting beyond those dimensions, so plan the chase or ceiling pocket for tool swing, not just the body of the coupling.
6) What is the manufacturer part number for the 2-1/2 inch Viega MegaPress 316 stainless coupling with stop?
The part number is Viega 90645. It is the 2-1/2 inch by 2-1/2 inch press coupling with stop, in 316 stainless steel, made in Germany. Order by that number if you are matching an existing stainless MegaPress system.
How fast can I get the Viega 90645 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 90645 come with a warranty?
Absolutely. The Viega 90645 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 90645?
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installation tips, and troubleshooting. Contact Us
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