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The PVC DWV trap adapter features a hub x slip joint with chrome nut connection and provides a means for adapting a solvent weld connection to a slip joint connection. 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 Adapters
- End Connection:
- Slip Joint
- Pipe Schedule:
- 40
- Plastic End Connection Type:
- Hub x SJ with Chrome Nut
- Product Group:
- Fitting
- Product Type:
- PVC DWV Adapters
- System Use:
- Commercial Plumbing, Residential Plumbing
- Product Subgroup:
- Adapter
- Department:
- Plumbing
- Product Color:
- White
- Product Width:
- 2.25 in
- Product Length:
- 2.25 in
- Country Of Origin:
- United States
Nibco K018080 – Frequently Asked Questions
1) How does the Nibco 4801-7-C trap adapter connect to PVC pipe and to a P-trap?
The 4801-7-C is a hub x slip joint adapter. The hub end solvent welds onto Schedule 40 PVC DWV pipe, and the slip joint end with the chrome nut takes the tubular tailpiece or trap arm, so you get from a glued system to a serviceable slip joint at the trap. No threading on either end.
2) What sizes does the Nibco 4801-7-C trap adapter come in, and which do I need for 1-1/4 inch tubular?
Two configurations: a straight 1-1/2 inch, and a 1-1/2 inch x 1-1/4 inch reducing version. Use the reducing one when the PVC line is 1-1/2 inch but the trap tubular is 1-1/4 inch, which is the common lavatory situation. For a 1-1/2 inch kitchen or tub trap, take the straight 1-1/2 inch.
3) Can I use this PVC trap adapter on a hot water line or a supply line?
No. The 4801-7-C is a DWV drain, waste and vent fitting only, not a pressure fitting, and maximum service temperature is 140 degrees F. Keep it on drainage. It also must never be tested or used with compressed air or other gases.
4) Does the Nibco 4801-7-C trap adapter meet code for a commercial building drain?
It is made to ASTM D2665 and D3311, carries NSF/ANSI Standard 14, and is NSF U.P. Certified. Nibco lists it for both commercial and residential plumbing, so it is the usual spec for DWV branch work under lavatories and sinks in either.
5) Is the slip joint nut on the Nibco 4801-7-C plastic or metal?
Chrome nut, supplied on the adapter. The body itself is white PVC. That chrome nut is what lets you break the joint later for snaking or trap service without cutting pipe.
6) Trap adapter or a male adapter with a threaded trap connection - which should I use?
Go with the hub x slip joint trap adapter when the trap arm is tubular and you want a joint you can take apart. A threaded adapter commits you to pipe thread and sealant, and it will not accept a tubular tailpiece. The 4801-7-C's slip joint side with the chrome nut and washer is the standard way to land a P-trap on a glued PVC stub-out.
7) What part number do I order for the Nibco 1-1/2 x 1-1/4 trap adapter?
The reducing 1-1/2 inch x 1-1/4 inch hub x slip joint trap adapter is Nibco MPN K018170. The straight 1-1/2 inch version is K018080. Both are the 4801-7-C pattern in white PVC DWV.
8) Will PVC DWV fittings like this hold up in a building with corrosive drain waste?
PVC will not rust, scale, pit or corrode, and it holds up to chemical attack well, which is why it gets specified over metal drain fittings in most buildings. The limit to watch is heat: keep continuous discharge at or below 140 degrees F.
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Does the Nibco K018080 come with a warranty?
Absolutely. The Nibco K018080 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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