Nibco 705-D Vent Elbow C x C -...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.10
Nibco 705-D Vent Elbow C x C - Cast

Nibco 705-D Vent Elbow C x C - Cast

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Model: B040750

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

$62.10
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The 90-degree vent elbow features solder cups and a drain port with cap. This fitting provides a means of changing the pipeline direction 90 degrees as well a means to drain the pipe. 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 Elbows
End Connection:
Solder
Fitting Bend Angle:
90 Deg (1/4 Bend)
Metal End Connection Type:
C x C
Product Group:
Fitting
Product Type:
Solder Pressure Elbows
System Use:
Commercial Plumbing, Fire Protection, Heating, HVAC, Industrial, Irrigation, Residential Plumbing
Product Subgroup:
Elbow
Department:
Plumbing

Nibco B040750 – Frequently Asked Questions

1) What is the drain port on the Nibco 705-D vent elbow actually for?
The 705-D is a 90 degree copper/bronze elbow with a tapped drain port and cap built into the fitting. It does two jobs at once: turns the line 90 degrees and gives you a point to drain or vent that section of pipe without cutting in a separate tee and valve later. Handy at low points on hydronic and HVAC loops where you need to pull water out of a leg for service.
2) Can I use the Nibco 705-D vent elbow on potable drinking water?
No. Nibco states use in U.S. drinking water applications is prohibited after January 3, 2014. It is a cast bronze body to ASTM B584 Alloy C84400, which does not meet the current lead-free potable requirement. Keep it to closed-loop and non-potable work: hydronic heating, HVAC, fire protection, industrial and irrigation lines.
3) Does the 705-D elbow thread on or does it get soldered?
Solder only. Both ends are C x C, meaning copper solder cups that slip over the outside of Type K, L or M copper tube and get sweated. There are no threads on the run ends, so if you need to transfer to iron pipe you will want an adapter fitting downstream.
4) What copper tube sizes does the Nibco 705-D vent elbow come in?
Three sizes: 1/2 inch (MPN B040500), 3/4 inch (B040650) and 1 inch (B040750). Those are nominal copper tube sizes, so a 1/2 inch fitting sweats onto 1/2 inch nominal copper, not 1/2 inch OD.
5) Is the cap included with the 705-D or do I order it separately?
The drain port cap ships as part of the fitting. Nothing extra to buy to close the port off. If you want a permanent drain valve at that point instead, you would remove the cap and fit your own valve to the port.
6) Is the Nibco 705-D elbow cast bronze or wrought copper?
Cast bronze, to ASTM B584 Alloy C84400, and it is dezincification resistant. Wrought copper elbows are pressed from tube and have no provision for a tapped port, which is why a fitting with a built-in drain has to be cast. Material and workmanship follow ASME B16.18.
7) Will the 705-D work in a fire sprinkler or hydronic heating system?
Yes. Nibco lists this vent elbow for commercial plumbing, fire protection, heating, HVAC, industrial, irrigation and residential plumbing service. On a heating loop the drain port is the useful part, letting you bleed or drain a branch at the turn. Just remember the potable water restriction still applies regardless of system type.
How fast can I get the Nibco B040750 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 B040750 come with a warranty?
Absolutely. The Nibco B040750 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 B040750?
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 B040750 from ZenSupply?
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