Legend Valve
Legend Valve 313-008NL 2" T4100NL flare x MNPT coupling
Two-inch no-lead bronze coupling connects flare tubing to male NPT threads
- No-lead bronze construction meets safety regulations
- 2-inch flare-to-MNPT coupling connects dissimilar threads
- T-4100NL model designed for potable water systems
- Legend Valve brand trusted in plumbing applications
- California Proposition 65 chemical disclosure included
Product identity
The Legend Valve 313-008NL is a 2 inch T-4100NL no-lead bronze coupling that connects a flare fitting to a male NPT thread. It is built for potable water lines and other plumbing systems that require lead-free components. The coupling meets California Proposition 65 disclosure requirements for listed chemicals. This new fitting is supplied directly from the manufacturer.
Suitability
This coupling suits plumbers and maintenance crews joining flare tubing to threaded pipe in residential or light commercial water service. It is not intended for gas distribution, high-pressure hydraulic circuits, or applications that demand a different thread standard or a larger nominal size. Buyers who need a female thread, a sweat connection, or a different alloy should look at alternative fittings.
Installation notes
Installation requires a flare nut and proper flaring tool for the tubing end, plus pipe-thread sealant or tape on the male NPT side. The most common issues are over-tightening the flare joint, which can crack the bronze, and cross-threading the NPT connection during assembly. Always pressure-test the joint before concealing the work.
Highlights
- No-lead bronze construction meets safety regulations
- 2-inch flare-to-MNPT coupling connects dissimilar threads
- T-4100NL model designed for potable water systems
- Legend Valve brand trusted in plumbing applications
- California Proposition 65 chemical disclosure included
Specifications
| Brand | LEGEND VALVE |
|---|
Questions about this item
What size flare fitting and MNPT thread does the 313-008NL coupling accept?
The coupling is a 2-inch T-4100NL no-lead bronze flare by MNPT fitting, so both ends are sized for 2-inch connections.
Can I join this no-lead bronze coupling to older leaded-bronze or brass pipe without corrosion risk?
The T-4100NL is no-lead bronze; it can thread directly onto existing brass or leaded-bronze MNPT pipe, but use a compatible thread sealant rated for potable water.
After threading the 313-008NL onto the flare and MNPT ends, how do I confirm the joint is watertight?
Pressurise the line and inspect both the flare seat and the MNPT threads for any seepage; a dry joint under test pressure means the coupling is sealed.
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