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The PVC DWV vent tee features a hub x hub x hub connection and the abrupt 90-degree angle on the outlet is used to change the direction of flow in the venting side of the system. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. Polyvinyl chloride (PVC) is the most frequently specified of all thermoplastic materials because of its light weight, durability, and cost-effectiveness. PVC DWV is easy to install and is joined by solvent cementing or threading. PVC fittings exhibit high corrosion and chemical resistance and will not rust, scale, pit or corrode. NIBCO® plastic fittings are backed by a 5-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.
Plastic Fittings Installation Instructions
- Maximum service temperature 140-DegreeF
- Not for use with compressed air or other gases
- ASTM D2665 and D3311
- NSF/ANSI Standard 14
- NSF U.P. Certified
Plastic Fittings Installation Instructions
Manufacturer Resources
Product Specs
- All Application(s):
- DWV Drain / Waste / Vent
- All Basic Material:
- PVC - Polyvinyl Chloride
- Classification:
- PVC DWV Tees
- End Connection:
- Solvent Weld
- Pipe Schedule:
- 40
- Plastic End Connection Type:
- Hub x Hub x Hub
- Product Group:
- Fitting
- Product Type:
- PVC DWV Tees
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Tee:
- Vent;Straight Size
- Product Subgroup:
- Tee
- Department:
- Plumbing
- Product Color:
- White
Nibco K141000 – Frequently Asked Questions
1) What is a PVC DWV vent tee used for, and how is it different from a sanitary tee?
The Nibco 4811V is a vent tee, meant for the venting side of a drain, waste and vent system. The branch meets the run at an abrupt 90 degree angle to turn the direction of flow, which is fine for air but not for draining waste. Where solids and water have to flow, you want a sanitary tee with its swept branch. Use the 4811V where the piping is carrying air only.
2) How does the Nibco 4811V vent tee connect to the pipe, and do I need cement?
All three openings are hubs (hub x hub x hub), and the joint is solvent weld. You cut the pipe square, prime and cement it, and push it into the socket. No threads on any port, so you cannot thread a nipple into this fitting. Anything screwed has to come off a separate adapter.
3) What pipe sizes does the Nibco 4811V vent tee come in?
Six straight sizes: 1-1/2, 2, 3, 4, 10 and 12 inch. All are straight size tees, meaning the branch matches the run, so a 2 inch tee is 2 x 2 x 2. If you need to drop from a 3 inch vent stack to a 2 inch branch, this is not the fitting; you take the 3 inch tee and reduce with a bushing or reducer off the branch.
4) Can I use a PVC DWV vent tee on a compressed air line?
No. PVC DWV fittings are not for compressed air or other gases, and the 4811V is no exception. It is a drain, waste and vent fitting only, non pressure. For air, go to a piping system rated for it.
5) Does the Nibco 4811V meet the code standards an inspector will look for on a DWV vent?
It is made to ASTM D2665 and D3311, and it is certified to NSF/ANSI Standard 14 and NSF U.P. Those are the marks an inspector checks on plastic DWV fittings for potable-adjacent drainage work. The fitting is white PVC and carries the markings on the body.
6) What is the maximum temperature a Nibco PVC DWV vent tee can handle?
140 degrees F is the ceiling. That covers normal household and commercial drainage, but a lab or kitchen line that dumps boiling or near-boiling water repeatedly will exceed it. For sustained high temperature waste you need a different material.
7) What is the Nibco part number for a 2 inch PVC DWV vent tee?
Nibco 4811V in 2 inch is MPN K138300. The rest of the run: 1-1/2 inch is K138100, 3 inch is K140500, 4 inch is K140850, 10 inch is K141000 and 12 inch is K141100. Distributors ordering by number should quote these rather than the 4811V series designation alone, since 4811V covers the whole size range.
8) Is the Nibco 4811V vent tee approved for commercial buildings or just houses?
Both. The 4811V is listed for commercial and residential plumbing, which is why it runs all the way up to 12 inch, a size you only see on large-building vent stacks. A property manager standardizing across a portfolio can use the same fitting family on apartment risers and on single-family work.
9) Will PVC DWV fittings corrode in a drain line the way metal does?
No. PVC will not rust, scale, pit or corrode, and it holds up to chemical attack, which is the usual reason it replaces cast iron or galvanized on a vent retrofit. It is also light enough to hang long horizontal vent runs without the support burden of metal.
How fast can I get the Nibco K141000 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 K141000 come with a warranty?
Absolutely. The Nibco K141000 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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