NIBCO Sweat Fitting Union: 3 in CTS x 3 in CTS, Cup x FTG, Bronze (MPN 733-LF 3)
SKU 3G-OTH-485682
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Frequently Asked Questions
What is a NIBCO sweat fitting union used for?
A NIBCO sweat fitting union connects two copper pipes in plumbing and HVAC systems, allowing easy disconnection for maintenance. This 3-inch CTS bronze union with cup x FTG ends is ideal for potable water lines where low-lead compliance is required.
What are the specifications of the NIBCO 733-LF 3 union?
The NIBCO 733-LF 3 is a low-lead cast bronze sweat fitting union for 3-inch CTS copper tubing. It features a cup x FTG (female thread) connection type and is manufactured under part number 733-LF 3. The bronze construction ensures corrosion resistance in water systems.
Where to buy NIBCO 733-LF 3 union worldwide?
3G Electric supplies the NIBCO 733-LF 3 union to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this low-lead bronze fitting.
How to install a NIBCO sweat fitting union?
To install a NIBCO sweat union, clean and flux the pipe ends and fitting cup. Heat the joint evenly with a torch until solder melts into the gap, then allow to cool. For the threaded end, apply pipe thread sealant and tighten securely. Always follow local plumbing codes.
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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.









