Nibco 4550 Tank Adapter Tank x...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$414.66
Nibco 4550 Tank Adapter Tank x FPT - PVC Schedule 80

Nibco 4550 Tank Adapter Tank x FPT - PVC Schedule 80

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Model: CA20955

In Stock (leaves warehouse same day if ordered before 3pm ET)

$414.66
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The dark grey PVC male adapter features a female pipe thread connection. Chemtrol® fittings connect PVC piping lengths together with solvent cementing, threading or flanging to create a highly reliable, leak-free system. Please refer to Chemtrol technical data sheets, chemical resistance guides and catalogs for engineering and installation information. PVC Schedule 80 has the highest long-term hydrostatic strength of any other major thermoplastic material used for piping. Chemtrol® PVC fittings are lightweight, easy to install, maintenance-free, and will not rust, scale, pit or corrode. Chemtrol® premium line of plastic fittings is backed by a 1-year limited warranty. Because Chemtrol® is a NIBCO brand the flow-control fittings are unsurpassed in quality, performance and longevity.

  • Maximum service temperature 140-DegreeF
  • Female pipe thread connection
  • Do not use or test with compressed air or other gases

Manufacturer Resources

Product Specs

All Application(s):
Lead-Free
All Basic Material:
PVC - Polyvinyl Chloride
Classification:
PVC Sch 80 Adapters
End Connection:
Threaded
Pipe Schedule:
80
Plastic End Connection Type:
Tank x F
Product Group:
Fitting
Product Type:
PVC Sch 80 Adapters
System Use:
Commercial Plumbing, Industrial, Irrigation, Lead Free*
Type of Adapter:
Straight Size;Tank;Threaded
Product Subgroup:
Adapter
Department:
Plumbing
Product Color:
Dark Grey

Nibco CA20955 – Frequently Asked Questions

1) What is a Nibco 4550 tank adapter used for?
The Nibco 4550 is a bulkhead-style tank adapter that penetrates a tank wall and gives you a female pipe thread outlet on the pipe side. The end configuration is Tank x FPT, so the tank side seals through the vessel wall and the other end takes a male threaded pipe or nipple. It's a PVC Schedule 80 fitting in dark grey, used in commercial plumbing, industrial, irrigation and lead-free systems.
2) What is the temperature limit on this PVC Schedule 80 tank adapter?
Maximum service temperature is 140 degrees F. Above that, PVC loses pressure rating fast, so hot process lines or steam cleaning cycles need a different material. Keep in mind pressure rating also drops as temperature climbs toward that ceiling.
3) Can I use this PVC tank adapter on a compressed air line?
No. Nibco states outright not to use or test this fitting with compressed air or other gases. PVC failing under gas pressure fragments rather than splitting, which is why it's a hard prohibition and not a recommendation. Liquid service only, including hydrostatic testing.
4) Is the Nibco 4550 tank adapter lead-free for potable water systems?
It's listed as a lead-free application. PVC fittings carry no lead content in the material itself, which is what puts it in the lead-free category alongside its industrial and irrigation uses.
5) Why choose Schedule 80 PVC over Schedule 40 for a tank penetration?
Schedule 80 has a heavier wall than Schedule 40 at the same nominal size, so it carries a higher pressure rating and gives more material for threads to bite into. That matters at a tank bulkhead where the fitting is carrying the weight of piping hanging off the vessel wall. The 4550 is Schedule 80 and dark grey, which is the standard visual cue that separates Sch 80 from white Sch 40 on a jobsite.
6) Will the Nibco 4550 hold up in a chemical dosing or process tank?
PVC Schedule 80 is used across industrial and commercial plumbing service and will not rust, scale, pit or corrode, but chemical compatibility depends entirely on what you're storing. Nibco directs you to the Chemtrol chemical resistance guides and technical data sheets to verify the specific media before you commit. Temperature is the other gate: 140 degrees F is the ceiling.
How fast can I get the Nibco CA20955 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 CA20955 come with a warranty?
Absolutely. The Nibco CA20955 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Nibco CA20955?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Nibco CA20955 from ZenSupply?
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