Sioux Chief 642XG No-Lead Copp...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.71
Sioux Chief 642XG No-Lead Copper PEX 90° Elbow, Copper-to-PEX Fitting

Sioux Chief 642XG No-Lead Copper PEX 90° Elbow, Copper-to-PEX Fitting

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Model: 642XG2

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

$1.71
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Sioux Chief 642XG No-Lead Copper PEX 90° Elbow, Copper-to-PEX Fitting

The Sioux Chief 642XG No-Lead Copper PEX 90° Elbow is a no-lead copper fitting engineered for reliable copper-to-PEX transitions in potable water and hydronic tubing systems, available in trade sizes from 1/2" to 1" (1/2" x 1/2", 3/4" x 3/4", and 1" x 1") to match rough-in requirements across the job. Each elbow uses a longer-radius 90° bend to improve flow characteristics over standard elbows, with tube stops formed directly into the fitting body for consistent, accurate PEX tubing insertion depth. The no-lead copper construction keeps this series compliant with lead-free potable water requirements for residential and commercial rough-in work.

Key Features

  • Trade Size Range: Available in 1/2" x 1/2", 3/4" x 3/4", and 1" x 1" sizes, covering the 1/2" to 1" range needed for copper-to-PEX rough-in across a job.
  • Durable Construction: Copper body with a longer-radius 90° bend that improves flow characteristics compared to standard elbows.
  • Formed Tube Stops: Tube stops are formed directly into each fitting, giving installers a consistent, accurate PEX tubing insertion depth every time.
  • No-Lead Compliant: No-lead copper construction keeps this fitting suitable for potable water distribution applications.
  • Case Packaging: Supplied 25 pieces per case for efficient jobsite stocking and inventory planning.

Certifications & Compliance

  • No-Lead Construction
  • Compliant with Lead-Free Potable Water Requirements

Technical Specifications

  • Trade Size: 1/2" - 1" (1/2" x 1/2", 3/4" x 3/4", 1" x 1")
  • Material: Copper
  • Angle: 90°
  • Country of Origin: Vietnam
  • Packaging: 25 EA per case

Typical Applications

  • Copper-to-PEX Transition Fittings
  • Potable Water Distribution Systems
  • Residential and Commercial Plumbing Rough-In
  • Hydronic and Radiant Heating Tubing Runs
  • Stub-Outs Behind Fixtures and Appliances
  • Renovation and New Construction Plumbing

Why Sioux Chief?

Sioux Chief backs the 642XG PEX 90° elbow family with no-lead copper construction, a longer-radius bend engineered for better flow, and tube stops formed directly into the fitting for fast, consistent installation. Combined with the flexibility of three trade sizes spanning 1/2" to 1" and case packaging built for jobsite efficiency, these details make it a dependable choice for plumbing professionals who need reliable copper-to-PEX transitions on every rough-in run.

Product Specs

Product Type:
Elbow
Angle:
90°
Standards:
Lead-Free
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Fittings and Valves
Product Material:
Copper
Country of Origin:
Vietnam

Sioux Chief 642XG2 – Frequently Asked Questions

1) Is the Sioux Chief 642XG elbow a copper-to-PEX transition, or copper on both ends?
The 642XG is a copper-sweat-to-PEX 90 degree elbow, built for transitions between copper and PEX in potable water and hydronic tubing runs. One end takes PEX tubing with a crimp or clamp ring, and the fitting body is no-lead copper. Sizes run 1/2 x 1/2 inch, 3/4 x 3/4 inch, and 1 x 1 inch, so the copper side and the PEX side match in each size.
2) What sizes does the 642XG PEX elbow come in, and which part number do I order?
Three sizes cover the 1/2 to 1 inch range: 642XG2 for 1/2 x 1/2 inch, 642XG3 for 3/4 x 3/4 inch, and 642XG4 for 1 x 1 inch. Both legs are the same size in each, so there is no reducing version in the family.
3) Can I use this elbow on potable water, or is it heating only?
Both. The no-lead copper construction meets lead-free potable water requirements, so it is good for domestic water distribution, and the same fitting is used on hydronic and radiant heating tubing runs.
4) How do I know the PEX is pushed in far enough on a Sioux Chief 642XG elbow?
Tube stops are formed directly into the fitting body, so the tubing bottoms out at the correct insertion depth every time rather than relying on the installer eyeballing it. That matters most on stub-outs and tight rough-in where you cannot see the joint once the ring is crimped.
5) Why pick this long-radius PEX elbow over a standard 90?
The 642XG uses a longer-radius 90 degree bend, which improves flow characteristics compared with a standard short elbow. On long branch runs or recirculation loops where you are stacking several turns, that reduced restriction is the reason to spend the extra on this style; for a single turn at a fixture stub-out a standard elbow does the same job.
6) Will the copper end of the 642XG sweat into standard copper tube?
Yes. The copper leg is sized to the trade size on the part, so a 3/4 inch 642XG3 solders to 3/4 inch copper tube, and the 1 inch 642XG4 to 1 inch copper. Keep the torch heat off the PEX side, or make the sweat joint before you crimp the tubing on.
7) Does the 642XG elbow come with crimp rings or clamps?
No. The elbow is the fitting only, so you order copper crimp rings or stainless clamps separately in the matching tubing size, along with the crimp or cinch tool your crew already uses.
8) How are these Sioux Chief copper PEX elbows packaged for stocking a job?
They ship 25 pieces per case, which suits stocking a van or staging a multi-unit rough-in by size rather than picking singles.
How fast can I get the Sioux Chief 642XG2 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 Sioux Chief 642XG2 come with a warranty?
Absolutely. The Sioux Chief 642XG2 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 Sioux Chief 642XG2?
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 Sioux Chief 642XG2 from ZenSupply?
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