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25645 Viega MegaPress adapter Smart Connect technology Carbon steel, 2'' x 1-1/2''
Manufacturer Resources
Product Specs
- Connection Type:
- P x FPT
- Material Type:
- Carbon Steel
- Product Dimension:
- 2'' x 1-1/2''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Adapters
- Product Type:
- Adapter
- Product Length:
- 3.425"
- Product Height:
- 2.894"
- Product Weight:
- 1.19 lbs
- Product Width:
- 2.894"
- Product Material:
- Carbon steel
Viega 25645 – Frequently Asked Questions
1) What are the connections on the Viega MegaPress 25645 adapter, 2 inch by 1-1/2 inch?
The 25645 is a P x FPT adapter: one 2 inch press end that crimps onto black iron pipe, and a 1-1/2 inch female pipe thread outlet for a threaded nipple, valve, or union. So it takes you from pressed pipe to threaded pipe in one fitting, with no welding or threading on the 2 inch side.
2) Can I press the Viega 25645 onto copper or stainless tube?
No. The 25645 is a carbon steel MegaPress fitting, made for black iron and carbon steel pipe systems. For copper you need a ProPress copper fitting, and for stainless you need a stainless press fitting. Pressing a carbon steel body onto copper tube is the wrong material pairing and the wrong press profile.
3) Does the Viega 25645 press fitting tell me if the joint was actually pressed?
It uses Viega's Smart Connect feature, which leaves an unpressed connection visibly leaking during pressure test so an unpressed joint gets caught at test rather than after the ceiling is closed. That is the main reason crews spec MegaPress on large black iron retrofits where a missed crimp is expensive to find.
4) Should I use a press-to-thread adapter or just thread the whole 2 inch black iron connection?
Use the adapter where you are joining a pressed 2 inch carbon steel run to something that only comes threaded, like a gas cock, strainer, gauge, or a piece of existing threaded pipe. The 1-1/2 inch FPT outlet takes that threaded component directly. If both sides of the joint are pipe you can press, a straight press coupling or reducer is simpler, since every threaded joint you add is another potential leak point needing dope or tape.
5) Will the Viega 25645 reduce my 2 inch line down to 1-1/2 inch?
On the threaded side, yes. The press end takes 2 inch pipe and the outlet is 1-1/2 inch female thread, so it adapts and reduces in one piece. Keep the flow restriction in mind if the 1-1/2 inch leg is carrying the full load of the 2 inch main rather than feeding a branch or a device.
6) What is the part number and origin on the Viega 2 inch by 1-1/2 inch MegaPress adapter?
Order it as Viega MegaPress 25645. It is a carbon steel fitting made in Germany and weighs 1.19 lbs, which matters if you are pricing freight on a bulk order of fittings for a mechanical room build-out.
How fast can I get the Viega 25645 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 25645 come with a warranty?
Absolutely. The Viega 25645 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 25645?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Viega 25645 from ZenSupply?
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