Nibco 739 Return Bend - Closed...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$122.80
Nibco 739 Return Bend - Closed C x C - Cast

Nibco 739 Return Bend - Closed C x C - Cast

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Model: B292250

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

$122.80
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The return bend features solder cups. The fitting provides a means of changing the pipeline direction 180 degrees. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. NIBCO® copper fittings are manufactured in an ISO 9001 certified facility, and backed by a 50-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.

  • Dezincification resistant
  • Use in U.S. drinking water applications is prohibited after January 3, 2014
  • ASTM B584 Alloy C84400
  • Material and workmanship per ASME B16.18

Copper Fittings Installation Instructions

Manufacturer Resources

Product Specs

All Basic Material:
Bronze
Classification:
Solder Pressure Return Bends
End Connection:
Solder
Fitting Bend Angle:
180 Deg (1/2 Bend)
Metal End Connection Type:
C x C
Product Group:
Fitting
Product Type:
Solder Pressure Return Bends
System Use:
Commercial Plumbing, Fire Protection, Heating, HVAC, Industrial, Irrigation, Residential Plumbing
Product Subgroup:
Return Bend
Department:
Plumbing

Nibco B292250 – Frequently Asked Questions

1) Can I use the Nibco 739 return bend on a potable water line?
No. The 739 is cast bronze to ASTM B584 Alloy C84400, and use in U.S. drinking water applications is prohibited after January 3, 2014. Keep it on non-potable service: hydronic heating, HVAC, fire protection, industrial, or irrigation piping. For potable copper work you need a lead-free wrought copper fitting instead.
2) Is the Nibco 739 return bend soldered or threaded?
Soldered. Both ends are solder cups, C x C, meaning copper tube slips inside each socket and you sweat the joint. There are no threads on this fitting, so if your run terminates in male or female pipe thread you will need an adapter to get to copper tube first.
3) What size copper does the 739 return bend take?
It is offered in 3/4 inch, part number B292250. Both cups are the same size, so it joins 3/4 inch copper tube on each leg with no reducing.
4) Does the Nibco 739 meet the usual spec callout for solder pressure fittings?
Material and workmanship are per ASME B16.18, which is the standard engineers cite for cast copper alloy solder joint pressure fittings. The casting alloy is ASTM B584 C84400 and it is dezincification resistant, which matters on closed-loop and industrial water where zinc leaching attacks lesser brass.
5) Should I use a cast return bend or just two 90 degree elbows?
Two elbows and a short piece of tube get you the same 180 degrees, but they add three more solder joints and take up more space. The 739 does it as a single cast bronze piece with two joints total, which is why it shows up on coils and tight equipment rooms. Where you cannot use it is potable water, since this cast alloy is barred from U.S. drinking water service.
6) Anything I need to know before sweating the 739 bronze return bend?
It is a cast bronze body, so it holds more heat than a wrought fitting and both cups sit close together on a closed pattern. Heat evenly and watch that you are not pulling the solder out of the first joint while you work the second. Nibco publishes copper fitting installation instructions covering cleaning, flux, and heating practice, and their technical data sheets carry the engineering data for the run.
How fast can I get the Nibco B292250 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 B292250 come with a warranty?
Absolutely. The Nibco B292250 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 B292250?
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 B292250 from ZenSupply?
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