The B&K ProLine 1 in. FPT x 1 in. D Solder Dielectric Union is engineered for durable, reliable connections in potable water systems. With a lead-free construction and a galvanized finish, this union stands up to corrosion while preserving water quality for years of use in residential and commercial applications.
Designed to join dissimilar metals without sacrificing integrity, this dielectric union provides a non-conductive barrier between brass and steel components. The connection layout is precisely described as one end with a 1 in. female pipe thread (FPT) and the other end accepting a 1 in. diameter solder connection, enabling seamless integration into mixed-material piping runs.
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Lead-free for potable water safety: built to meet regulatory expectations for drinking water systems.
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Dielectric isolation: prevents galvanic corrosion between brass and steel, extending the lifespan of your piping network.
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Maximum 250 psi rating: robust enough for typical domestic water pressure and many commercial applications.
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Galvanized finish: enhanced corrosion resistance in damp or outdoor environments.
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Versatile connection configuration: 1 in. FPT on one side for threaded piping and 1 in. solder connection on the other for copper tubing, simplifying retrofits and new installs.
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Quality you can trust: part of the ProLine family from B&K, combining reliable performance with practical plumbing practicality.
Ideal use cases and practical insights
The B&K ProLine dielectric union shines in projects where two different metals meet water lines. Use it to isolate a brass-to-steel transition in basements, utility rooms, or exposed outdoor runs where moisture and temperature swings are common. It’s particularly well-suited for: potable water supply lines, connections near water heaters, irrigation systems, and any installation requiring a secure, leak-resistant solder-to-thread transition.
Installation tips: prepare both connection types per standard plumbing practice. Ensure the threaded end is paired with compatible fittings and that the solder joint is thoroughly cleaned and fluxed for a clean, durable seal. With its lead-free construction and galvanized finish, this dielectric union is a dependable choice for long-term reliability in challenging environments.
