NIBCO Sweat Fitting Union: 1 1/2 in CTS x 1 1/2 in Pipe, Cup x FNPT, Bronze (MPN 7333LF-112)
SKU 3G-OTH-485584
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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 disassembly for maintenance. This 1 1/2 in CTS bronze union with Cup x FNPT ends is used in potable water, hydronic heating, and industrial piping where low-lead compliance is required.
What are the specifications of the NIBCO 7333LF-112 union?
The NIBCO 7333LF-112 is a low-lead cast bronze sweat fitting union. It has a 1 1/2 in CTS copper tube size on the cup end and a 1 1/2 in FNPT female pipe thread on the other. The manufacturer part number is 7333LF-112, and it is designed for sweat (solder) installation.
Where to buy NIBCO 7333LF-112 union in worldwide?
3G Electric supplies the NIBCO 7333LF-112 low-lead bronze union to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this sweat fitting union for your industrial or plumbing project.
How to install a NIBCO sweat fitting union?
To install a NIBCO sweat fitting union, clean and flux the copper tube and cup end, then heat evenly and apply lead-free solder. Ensure the FNPT end is threaded with pipe sealant. Always follow local plumbing codes and manufacturer guidelines for proper joint integrity and pressure testing.
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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.









