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Nibco 4803-2-F Female Flush Adapter Spg x FIPT - PVC DWV
Model: NBC-4803-2-F
The PVC DWV female flush adapter features a spigot x female NPT thread connection and provides a means for adapting a solvent weld connection to a threaded connection. Please refer to NIBCO technical...
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The ABS DWV female flush adapter features a spigot x female NPT thread connection and provides a means for adapting a solvent weld connection to a threaded connection. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. Acrylonitrile-Butadiene-Styrene (ABS) is resistant to a wide variety of materials ranging from sewage to commercial household chemical formulations and can be exposed to a wide temperature span. ABS is lightweight, safe to handle and easy to install. ABS DWV is joined by solvent cementing or threading and can easily be connected to steel, copper, or cast iron through the use of transition fittings. 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
- Service temperature -40-DegreeF to 180-DegreeF
- Do not test or use with compressed air or other gases
- CSA B181.1
- ASTM D2665
- ASTM D3965
- ASTM D2661
- UL Listed 94V-0
- 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:
- ABS - Acrylonitrile Butadiene Styrene
- Classification:
- ABS DWV Adapters
- End Connection:
- Threaded
- Pipe Schedule:
- 40
- Plastic End Connection Type:
- Spg x F
- Product Group:
- Fitting
- Product Type:
- ABS DWV Adapters
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Adapter:
- Threaded;Flush;Reducing Size
- Product Subgroup:
- Adapter
- Department:
- Plumbing
- Product Color:
- Black
- Country Of Origin:
- United States
Nibco I177680 – Frequently Asked Questions
1) How does the Nibco 5803-2-F ABS flush adapter connect on each end?
One end is a spigot that solvent cements into an ABS DWV hub, and the other end is female NPT pipe thread. Nibco lists the connection as Spg x F. It's the fitting you use to get from a cemented ABS drain line to a threaded connection, so the threaded side takes a male-threaded plug, trap adapter, cleanout, or a transition nipple into steel, copper, or cast iron.
2) What sizes does the Nibco 5803-2-F female flush adapter come in?
Four reducing combinations: 1-1/2 x 1-1/4 inch, 2 x 1-1/2 inch, 3 x 1-1/2 inch, and 4 x 3 inch. Every one steps down, so the threaded outlet is always smaller than the spigot end. If you need a same-size spigot-to-female adapter, this is not the fitting.
3) What standards does the Nibco ABS DWV flush adapter meet?
It's listed to ASTM D2665, ASTM D2661, and ASTM D3965, plus CSA B181.1, NSF/ANSI Standard 14 with NSF U.P. certification, and UL Listed 94V-0 for flammability. That covers the usual inspector callouts on drain, waste, and vent work in both commercial and residential systems.
4) Can I use this ABS adapter on a pressure line or test it with air?
No. It's a DWV drain, waste, and vent fitting only, not a pressure fitting, and Nibco states plainly not to test or use it with compressed air or other gases. Test with water.
5) What does "flush" mean on an ABS DWV female adapter?
Flush means the spigot end goes into the hub of the mating fitting rather than the fitting having its own hub over the pipe, so the body sits flush and doesn't add a shoulder inside the fitting socket. That's how you keep a threaded outlet tight to a hub or fitting where a standard hubbed adapter would stick out or won't fit the space. The 5803-2-F is catalogued as threaded, flush, and reducing.
6) Will this ABS adapter fit Schedule 40 ABS DWV pipe?
Yes. It's a Schedule 40 ABS DWV fitting in black, sized to standard ABS DWV pipe and fittings. It joins by solvent cement on the spigot side, so use ABS cement (or the proper transition cement if you're tying to another plastic).
7) What temperature range can this ABS DWV fitting handle?
Service range is -40 F to 180 F. That covers normal drain and waste discharge, including dishwasher and laundry runs, but it isn't for continuous high-temperature process waste above 180 F. ABS also resists everything from sewage to common household chemicals.
8) Can I tie an ABS drain line into existing cast iron or copper with this fitting?
Indirectly, yes. The female NPT outlet gives you a threaded takeoff, and ABS DWV connects to steel, copper, or cast iron through transition fittings. So you cement the spigot into the ABS, thread into the adapter, and carry on with the appropriate transition to the metal line. The adapter itself does not join directly to cast iron hub.
9) Is a 2 x 1-1/2 inch ABS flush adapter the right way to pick up a 1-1/2 inch trap arm off a 2 inch line?
It works where you want a threaded connection at that point. The 2 x 1-1/2 version cements into the 2 inch ABS and leaves you a 1-1/2 inch female NPT to thread a male adapter or trap adapter into. If you'd rather solvent weld the branch straight in with no threads, use a solvent-weld reducing fitting instead, since this one's whole purpose is getting from cemented ABS to pipe thread.
10) What are the Nibco part numbers for each size of the 5803-2-F adapter?
I177500 is the 1-1/2 x 1-1/4 inch, I177600 is the 2 x 1-1/2 inch, I177660 is the 3 x 1-1/2 inch, and I177680 is the 4 x 3 inch. Order by that number if you're matching an existing submittal or standardizing a stock list.
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Does the Nibco I177680 come with a warranty?
Absolutely. The Nibco I177680 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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