NIBCO Sweat Fitting Union: 2 in CTS x 2 in Pipe, Cup x MNPT, Bronze (MPN 733-4-LF 2)
SKU 3G-OTH-485689
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Frequently Asked Questions
What is NIBCO sweat fitting union used for?
This NIBCO sweat fitting union connects 2 in CTS copper tube to 2 in male NPT pipe in low-lead bronze. It is used in potable water, HVAC, and industrial plumbing systems where a reliable, leak-free joint is required.
What are the specifications of NIBCO 733-4-LF 2?
The NIBCO 733-4-LF 2 is a 2 in CTS x 2 in pipe sweat fitting union with cup x MNPT ends, made from low-lead cast bronze. It is designed for soldered connections on the cup end and threaded connections on the male NPT side.
Where to buy NIBCO sweat fitting union worldwide?
3G Electric supplies and delivers the NIBCO 733-4-LF 2 sweat fitting union worldwide. We handle full logistics and customs clearance, ensuring your order reaches any global destination. Contact us for availability and lead time.
How to install a NIBCO sweat fitting union?
Clean the copper tube and cup end, apply flux, then heat and solder the cup joint. For the male NPT end, use thread sealant and tighten to the female pipe thread. Ensure proper alignment before soldering to avoid leaks.
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Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO low-lead cast copper & bronze tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









