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The double long turn tee features solder cups and long turn radius. This fitting allows for a connection to be made in continuous pipeline and branch out in two different directions. The long turn radius enhances the takeaway of waste water. 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 Tees
- End Connection:
- Solder
- Metal End Connection Type:
- C x C x C
- Product Group:
- Fitting
- Product Type:
- Solder DWV Tees
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Tee:
- Double;Sanitary;Reducing;Long Radius / Long Turn
- Product Subgroup:
- Tee
- Department:
- Plumbing
- Product Length:
- 5.75 in
- Product Weight:
- 1.898 lb
- Product Height:
- 2.28 in
- Product Width:
- 4.75 in
Nibco E277550 – Frequently Asked Questions
1) What is a DWV double long turn tee used for on a drain line?
The Nibco 835-B double long turn tee lets you run a continuous drain line straight through and branch off in two different directions at the same point, typically for back-to-back fixtures. The long turn radius sweeps the branch into the flow so waste carries away better than a short pattern would. It is a DWV drain, waste and vent fitting, not a pressure fitting.
2) How does the Nibco 835-B tee connect to copper DWV pipe?
All four openings are solder cups, so this is a sweat fitting: clean, flux and solder it to copper DWV tube. No threads and no press or push connections on it. Sizing on the 835-B is 2 inch run with 1-1/2 inch branches, so it is a reducing tee as well as a double.
3) Can I use this tee to pick up two 1-1/2 inch fixture drains off a 2 inch stack?
That is exactly the configuration it is built for. The 835-B is a 2 inch by 1-1/2 inch by 1-1/2 inch by 1-1/2 inch double tee, so the main run takes 2 inch copper DWV and each branch plus the remaining opening take 1-1/2 inch. It is a sanitary pattern, so orient it with the branch sweeps in the direction of flow.
4) Is the Nibco 835-B brass or copper, and will it hold up in aggressive water?
It is a cast bronze fitting, ASTM B584 alloy C84400, and it is dezincification resistant, which is what matters where water chemistry attacks the zinc in ordinary brass. Material and workmanship are per ASME B16.23, the standard for cast copper alloy DWV fittings.
5) What is the difference between a long turn tee and a regular sanitary tee?
A short pattern sanitary tee turns the branch into the run sharply. The long turn version sweeps it on a wider radius, which improves waste takeaway and reduces the chance of solids hanging up. Use the long turn 835-B where you have the room in the wall or chase; a standard sanitary tee is the choice when clearance is tight.
6) Can I use a DWV double LT tee on a pressurized water line?
No. The 835-B is a drain, waste and vent fitting, with the thinner cup depths and wall thickness of the DWV class. For supply piping you need pressure-rated copper fittings. Keep this one on the drainage and vent side of the job.
7) Is this tee approved for commercial buildings or just residential work?
Both. The 835-B is listed for commercial and residential plumbing systems, and the cast bronze ASME B16.23 construction is what engineers spec on commercial DWV risers. Same fitting either way.
8) Does copper DWV fitting count toward a sustainable or recycled-content project?
Copper is reusable and recyclable at end of life, which is why it shows up on sustainable project specs, and Nibco copper fittings are made in an ISO 9001 certified facility. Useful detail if you are a distributor or specifier documenting material choices.
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Nibco E277550 come with a warranty?
Absolutely. The Nibco E277550 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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