NIBCO Sweat Fitting Union: 1/4 in CTS x 1/4 in CTS, Cup x Cup, Wrot Copper (MPN 633W 1/4)
SKU 3G-OTH-472131
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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 a way that allows disassembly without cutting the line. It is used in plumbing, HVAC, and industrial piping systems where maintenance or component replacement is needed. The cup x cup design accepts 1/4 in CTS tubing on both ends.
What are the specifications of the NIBCO 633W 1/4 union?
The NIBCO 633W 1/4 is a wrot copper sweat fitting union with cup x cup connections for 1/4 in CTS copper tubing. It is designed for soldered installation and provides a reliable, leak-resistant joint in low-pressure plumbing and heating applications. The manufacturer part number is 633W 1/4.
Where to buy NIBCO sweat fitting unions worldwide?
3G Electric supplies NIBCO sweat fitting unions worldwide. As a global industrial solutions provider, we handle logistics, customs clearance, and delivery to your location. Contact us to order the NIBCO 633W 1/4 union or other wrot copper fittings for your project.
How to install a NIBCO sweat fitting union?
To install a NIBCO sweat fitting union, clean and flux the 1/4 in CTS copper tube ends and the cup interiors. Assemble the union, apply heat evenly with a torch, and feed solder into the joint until it flows fully. Allow to cool before pressurizing. Always follow local plumbing codes and use proper safety gear.
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3G Electric supplies NIBCO wrot copper tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
