Sioux Chief 648WG3WRV 3/4" F19...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.73
Sioux Chief 648WG3WRV 3/4" F1960 PEX Expansion Relief Valve, No-Lead DZR Brass

Sioux Chief 648WG3WRV 3/4" F1960 PEX Expansion Relief Valve, No-Lead DZR Brass

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Model: 648WG3WRV

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

$38.73
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Sioux Chief 648WG3WRV 3/4" F1960 PEX Expansion Relief Valve, No-Lead DZR Brass

The Sioux Chief 648WG3WRV is a 3/4" F1960 x 3/4" F1960 expansion relief valve built for inline installation on PEX expansion-connection water lines. It ties into the supply run with dual F1960 expansion connections and adds a third F1960 expansion relief outlet, giving installers a single fitting that both carries the line and vents excess pressure caused by thermal expansion. The body is manufactured from No-Lead (NL) dezincification-resistant (DZR) brass, making it suitable for rough-in potable water piping behind the wall or under the floor.

Key Features

  • Trade Size: 3/4" F1960 x 3/4" F1960 inline connections size the valve to standard 3/4" PEX expansion tubing runs.
  • Expansion Relief Port: A dedicated third F1960 expansion connection routes excess pressure away from the closed water system during thermal expansion events.
  • Durable Construction: No-Lead DZR brass body resists dezincification and corrosion in continuous contact with potable water.
  • Connection Type: F1960 PEX expansion connections on all three ports allow a cold-expansion installation with no glue, solder, or crimp rings at this fitting.
  • Inline Design: Installs directly in the water line rather than as a separate branch fitting, simplifying rough-in layout near water heaters and closed-loop systems.
  • No-Lead Compliant: NL brass formulation supports use on potable water supply lines.

Certifications & Compliance

  • No-Lead (NL) Brass Construction

Technical Specifications

  • Connections: 3/4" F1960 x 3/4" F1960 with F1960 expansion relief outlet
  • Material: No-Lead DZR Brass
  • Country of Origin: China
  • Packaging: 6 EA per pack

Typical Applications

  • Residential and Commercial Rough-In Plumbing
  • PEX Expansion (F1960) Water Distribution Systems
  • Thermal Expansion Protection Near Water Heaters and Closed-Loop Systems
  • New Construction and Remodel Water Line Installations

Why Sioux Chief?

Sioux Chief builds the 648WG3WRV from No-Lead DZR brass and standardizes every connection on the F1960 PEX expansion platform, so plumbers can carry one valve that handles both the water line and the expansion relief function with a single set of cold-expansion tools. For rough-in crews already running F1960 PEX, that consistency in connection type and No-Lead brass construction means fewer fittings to stock and a straightforward tie-in near water heaters and other closed-loop applications.

Product Specs

Product Type:
Expansion Relief Valve
Connection Type:
PEX Expansion (F1960)
Standards:
No-Lead
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Fittings and Valves
Product Material:
Brass
Product Size:
3/4"

Sioux Chief 648WG3WRV – Frequently Asked Questions

1) Will the Sioux Chief 648WG3WRV connect to 3/4" PEX-a with expansion rings, or do I need crimp fittings?
All three ports on the 648WG3WRV are F1960 PEX expansion connections, so it installs with a cold-expansion tool and expansion rings on 3/4 inch PEX-a tubing. No glue, solder, or crimp rings at this fitting. If your system is running PEX-b with copper crimp or stainless clamp rings, this is the wrong connection platform for you.
2) How does an inline expansion relief valve like the 648WG3WRV get installed near a water heater?
It goes directly in the water line rather than hanging off a separate branch tee. Two 3/4" F1960 ports carry the supply run through the valve, and a third F1960 port is the expansion relief outlet that you pipe away to handle excess pressure when the water in a closed system heats and expands. That makes it a one-fitting tie-in on a rough-in near a water heater or other closed-loop setup.
3) Is the 648WG3WRV brass safe for potable water lines?
The body is No-Lead (NL) dezincification-resistant brass, which is the formulation used for potable water supply piping. DZR brass is specified where dezincification and corrosion from continuous water contact are a concern, so it holds up in behind-the-wall and under-floor rough-in.
4) Can I bury this valve in a wall or under a slab?
Sioux Chief builds the 648WG3WRV for rough-in potable water piping behind the wall or under the floor, and the No-Lead DZR brass body is what makes that acceptable in continuous water contact. Keep in mind the third port is a relief outlet that has to be piped to a point where a discharge is acceptable, so plan the routing before you close the wall.
5) Do I still need a separate thermal expansion tank if I use this valve?
The 648WG3WRV handles thermal expansion by venting excess pressure out of a dedicated relief port rather than absorbing it in a bladder the way an expansion tank does. Which approach your job needs is a code and system question for your local jurisdiction; what the valve itself provides is a relief path routed away from the closed water system during expansion events.
6) Does the Sioux Chief 648WG3WRV come as a single valve or in a multi-pack?
It is packaged 6 each per pack, so an order comes as a six-valve pack rather than a single fitting. That suits crews standardizing F1960 rough-in across multiple units.
How fast can I get the Sioux Chief 648WG3WRV 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 648WG3WRV come with a warranty?
Absolutely. The Sioux Chief 648WG3WRV 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 648WG3WRV?
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
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