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The cast bronze adapter features a male NPT thread and actual outside diameter tube. This fitting provides a means of adapting OD tube connection to a threaded connection. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. NIBCO® copper fittings are manufactured in an ISO 9001 certified facility, and backed by a 50-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.
Copper Fittings Installation Instructions
- Dezincification resistant
- ASTM B584 Alloy C84400
- Material and workmanship per ASME B16.23
Copper Fittings Installation Instructions
Manufacturer Resources
Product Specs
- All Application(s):
- DWV Drain / Waste / Vent
- All Basic Material:
- Bronze
- Classification:
- Solder DWV Adapters
- End Connection:
- Threaded
- Metal End Connection Type:
- C x M (NPT)
- Product Group:
- Fitting
- Product Type:
- Solder DWV Adapters
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Adapter:
- Trap;Reducing Size;Threaded
- Product Subgroup:
- Adapter
- Department:
- Plumbing
Nibco E034050 – Frequently Asked Questions
1) What does the Nibco 804-T trap adapter connect to on each end?
One end takes OD tube (copper DWV tube, soldered) and the other is a male NPT thread, listed as C x M (NPT). So it takes a soldered copper DWV line and converts it to a threaded connection, typically to pick up a trap or threaded fitting.
2) Is the Nibco 804-T trap adapter a reducing fitting?
Yes. It is offered in 1-1/4 inch by 1-1/2 inch, so the tube side and the thread side are different sizes. Nibco classifies it as a trap, reducing size, threaded adapter, which is what you want when the trap arm and the branch are not the same size.
3) Can I use the Nibco 804-T on a pressure water line, or is it drainage only?
Drainage only. It is a DWV (drain, waste, vent) fitting and should be used on drain, waste and vent piping, not on pressurized supply. It is approved for both commercial and residential plumbing systems.
4) What material is the Nibco 804-T DWV trap adapter made of, and will it hold up in aggressive water?
Cast bronze, ASTM B584 alloy C84400, and it is dezincification resistant, which is the property that matters where water chemistry attacks brass fittings. Material and workmanship conform to ASME B16.23.
5) Why use a cast bronze trap adapter instead of a wrot copper solder fitting?
Because the thread is the working part. A threaded connection that gets made up, backed off, and re-made when a trap is serviced needs the wall thickness and thread strength a cast bronze body gives you. The 804-T is cast bronze with a male NPT end for exactly that duty, while a plain solder fitting has no thread at all.
6) What is the Nibco part number for the 1-1/4 x 1-1/2 inch 804-T trap adapter?
Order it as Nibco E034050. That is the 804-T DWV trap adapter in 1-1/4 inch by 1-1/2 inch, OD tube by male NPT.
7) Do I need to do anything special when soldering a bronze trap adapter with a threaded end?
Two things. Make the threaded joint after the solder joint has cooled, or use a heat sink, so you are not heating a made-up thread. And follow Nibco's copper fittings installation instructions for joint prep and solder procedure, which are published with the fitting. Beyond that it solders like any copper DWV joint on the tube side.
How fast can I get the Nibco E034050 delivered?
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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 Nibco E034050 come with a warranty?
Absolutely. The Nibco E034050 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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