Legend Valve
Legend Valve 105-203NL 1/2 inch S-451 No Lead Check Valve
1/2-inch no-lead brass swing check valve stops backflow in potable water systems
- No-lead brass construction reduces lead exposure
- 1/2 inch size fits standard plumbing connections
- Swing check design prevents backflow automatically
- California Proposition 65 warning indicates chemical presence
- Legend Valve 105-203NL model ensures reliable performance
1/2" No Lead Brass Swing Check Valve
The Legend Valve 105-203NL is a 1/2 inch S-451 no lead brass swing check valve designed for potable water lines. It prevents backflow in residential and light commercial plumbing systems. Installers choose it for code-compliant installations where lead-free materials are mandated. The valve suits new construction and repair work alike.
Verify pipe size and thread type before ordering
Confirm that the existing piping uses 1/2 inch connections compatible with the valve ends. Check the flow direction arrow on the body matches the system design. Ensure the application pressure and temperature fall within the valve's rated limits. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.
No lead brass body resists corrosion and scaling
The no lead brass construction meets safe drinking water standards and withstands typical water chemistry. Swing check action allows full flow with minimal pressure drop when open and seals tightly against reverse flow. Horizontal or vertical upflow mounting is standard for swing designs. Threaded ends allow direct connection to copper, steel or plastic pipe with appropriate sealant.
Highlights
- No-lead brass construction reduces lead exposure
- 1/2 inch size fits standard plumbing connections
- Swing check design prevents backflow automatically
- California Proposition 65 warning indicates chemical presence
- Legend Valve 105-203NL model ensures reliable performance
Specifications
| Brand | LEGEND VALVE |
|---|
Questions about this item
What comes in the box and what must be purchased separately?
The package contains the 1/2" S-451 no-lead brass swing check valve only. Pipe fittings, thread sealant and installation tools are not included and must be sourced separately.
Which version of the 105-203NL should I choose for a standard residential water line?
The single listed version is a 1/2" S-451 no-lead brass swing check valve. Select this model when a half-inch, lead-free check valve is specified for the plumbing system.
What does the 451 designation mean once the valve is installed in a real plumbing system?
The S-451 marking identifies the valve as a swing-check type with a 1/2 inch connection and no-lead brass construction, confirming it meets low-lead requirements for potable water installations.
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