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The PVC DWV test tee features a hub x hub x female NPT thread connection and provides a means for testing the tightness of the system by assessing potential leakage. 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
- Do not test or 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:
- Threaded
- Pipe Schedule:
- 40
- Plastic End Connection Type:
- Hub x Hub x F
- Product Group:
- Fitting
- Product Type:
- PVC DWV Tees
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Tee:
- Straight Size;Test;without Plug;Threaded
- Product Subgroup:
- Tee
- Department:
- Plumbing
- Product Color:
- White
Nibco K113050 – Frequently Asked Questions
1) Does the Nibco 4811-14-V PVC DWV test tee come with a plug?
No plug is included. The 4811-14-V is the without-plug version, so the threaded branch ships open and you supply the test plug or cleanout plug that suits the job. The branch is female NPT, so a standard threaded plug in the matching pipe size threads straight in.
2) How do the ends of this PVC test tee connect, glue or thread?
Both ends of the run are hubs for solvent cement, and the branch is female NPT thread. So you cement the tee into the DWV line and thread the plug or test apparatus into the side outlet. Mixed connection on one fitting: hub x hub x FIPT.
3) Can I pressure test a DWV line with air using this Nibco test tee?
No. Nibco states not to test or use PVC DWV fittings with compressed air or other gases. Use a water (hydrostatic) test only. The fitting also has a maximum service temperature of 140 degrees F, so keep hot discharge within that.
4) Does this Nibco test tee meet code for a potable-adjacent residential drainage system inspection?
It is manufactured to ASTM D2665 and D3311 for PVC DWV, carries NSF/ANSI Standard 14 and is NSF U.P. Certified. Those are the listings inspectors look for on drain, waste and vent work in both commercial and residential plumbing.
5) What is a test tee actually for, and do I need one instead of a plain sanitary tee?
A test tee gives you an access point to plug the line and prove it holds water during inspection, and it stays in place afterward as a cleanout style access. A plain sanitary tee is a drainage branch connection with no threaded access. If the drawing calls for a test or cleanout opening at a stack base or before a building drain leaves the structure, this is the fitting; if you just need to bring a branch into the line, use the sanitary tee instead.
6) Will a PVC test tee hold up in a commercial building drain, or should I be using cast iron?
PVC DWV will not rust, scale, pit or corrode, and Nibco lists this fitting for both commercial and residential plumbing service. The limit is heat: 140 degrees F maximum. For a commercial kitchen or a line seeing sustained higher-temperature discharge, PVC is the wrong material and a metallic DWV system is the answer.
7) Is this Nibco fitting white PVC or the black ABS style?
White PVC. The 4811-14-V is polyvinyl chloride, and PVC is joined with PVC solvent cement to PVC pipe. It is not ABS and should not be cemented to black ABS pipe with standard cement; that joint needs a transition coupling or an ABS fitting instead.
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Does the Nibco K113050 come with a warranty?
Absolutely. The Nibco K113050 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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