NIBCO Sweat Fitting Union: 3/4 in CTS x 3/4 in Pipe, Cup x FNPT, Bronze (MPN 733LF 3/4)
SKU 3G-OTH-485640
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Frequently Asked Questions
What is NIBCO 733LF 3/4 sweat fitting union used for?
This NIBCO bronze union connects 3/4 in CTS copper tube to 3/4 in FNPT threaded pipe in low-lead potable water and hydronic heating systems. It allows easy disconnection for maintenance without cutting pipe.
What are the specifications of NIBCO 733LF 3/4 union?
The NIBCO 733LF 3/4 is a low-lead cast bronze sweat fitting union with a cup x FNPT connection. It joins 3/4 in CTS copper tube to 3/4 in pipe thread. The cup end is for soldering; the FNPT end accepts male threaded pipe.
Where to buy NIBCO 733LF 3/4 union in worldwide?
3G Electric supplies and delivers the NIBCO 733LF 3/4 union worldwide. We handle full logistics and customs clearance for global orders. Contact us for pricing and lead time on this low-lead bronze fitting.
How to install NIBCO 733LF 3/4 sweat union?
Clean and flux the copper tube end, then solder the cup connection using lead-free solder. Apply thread sealant to the FNPT end and tighten onto male pipe. Ensure the union nut is snug but not overtightened to avoid cracking the bronze body.
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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.









