Nibco 638 Return Bend C x C - ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$57.10
Nibco 638 Return Bend C x C - Wrot

Nibco 638 Return Bend C x C - Wrot

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Model: 9292350

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

$57.10
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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.

  • Lead-free*
  • Dezincification resistant
  • ASTM B75 Alloy C12200
  • NSF/ANSI/CAN-61 and 372
  • Material and workmanship per ASME B16.22
  • Material, workmanship and dimensions per MSS SP-104
  • NFPA 99 Health Care Facilities Gas and Vacuum Systems and the Compressed Gas Association, Pamphlet G4.1 (medical gas)

Copper Fittings Installation Instructions

Manufacturer Resources

Product Specs

All Application(s):
ACR Air Conditioning / Refrigeration;Lead-Free
All Basic Material:
Copper
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, Compressed Air, Fire Protection, Heating, HVAC, Industrial, Irrigation, Lead Free*, Med-gas, Residential Plumbing
Product Subgroup:
Return Bend
Department:
Plumbing

Nibco 9292350 – Frequently Asked Questions

1) Is this copper return bend approved for medical gas piping?
The Nibco 638 is listed for med-gas service and meets NFPA 99 Health Care Facilities gas and vacuum systems along with Compressed Gas Association Pamphlet G4.1. Institutional and healthcare buyers standardizing a med-gas fitting package can spec it on that basis. Note that med-gas work still has to be brazed and installed per the governing code, not soldered like ordinary domestic water.
2) Can I solder a copper return bend onto PEX, CPVC, or threaded pipe?
No. Both ends of the 638 are solder cups sized for copper tube, C x C, with no threads anywhere on the fitting. To land it on threaded iron or on PEX or CPVC you need a transition fitting ahead of it, then copper tube into the cups. If the job is entirely non-copper, this is the wrong fitting family.
3) What dimensional standard do Nibco 638 return bends meet, and will they match another brand's copper fittings?
Material and workmanship follow ASME B16.22, and material, workmanship and dimensions follow MSS SP-104. Those are the governing standards for wrot copper solder pressure fittings, so the cup depths and diameters land where any B16.22 fitting does and the 638 drops into a run built with other standard-conforming copper fittings.
4) Do I need a return bend or can I just use two 90 degree elbows?
Two elbows get you the same 180 degrees but cost you two extra solder joints and a short nipple between them, and they eat more space than a single return bend. The Nibco 638 does the reversal in one piece with two cups, which is the reason it exists on coil banks and heating loops where the fittings are stacked tight and every joint is a future leak. Where you have room and no tight center spacing, elbows are fine; where the returns are on a fixed pitch, the return bend is the fitting that fits.
5) Which part number do I order for a 3/4 inch Nibco 638 return bend?
The 3/4 inch is MPN 9292250. Running up the range: 1/2 inch is 9292150, 1 inch is 9292350, 1-1/4 inch is 9292400, 1-1/2 inch is 9292450 and 2 inch is 9292500. The small end is 9292050 for 1/4 inch, 9292080 for the 1/4 x 1-1/2 inch, and 9292100 for 3/8 inch.
How fast can I get the Nibco 9292350 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 9292350 come with a warranty?
Absolutely. The Nibco 9292350 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 9292350?
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 9292350 from ZenSupply?
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