Viega ProPress union fittings are used to join two sections of copper pipe while allowing the connection to be easily disconnected for future maintenance or system servicing.
Unlike standard press couplings, a union is designed with a separable joint, so parts of the piping system can be taken apart without cutting the pipe.
Key functions of ProPress unions:
Connect two straight pipe sections securely
Allow easy disconnection for repairs or maintenance
Maintain full system flow with minimal restriction
Provide a flame-free, press-fit installation
Ensure leak-resistant sealing under pressure
As part of the Viega ProPress system, unions install quickly using press tools, combining serviceability with the speed and safety of press technology.
In short: ProPress unions are used when you need a strong, sealed connection that can still be taken apart later if needed.
Upgrade your plumbing system with the Viega ProPress Copper Union 1/2 in x 1/2 in Press Fitting (Model 79125), designed for fast, reliable, and flame-free connections. This high-quality union fitting allows for easy disassembly, making maintenance and system modifications simple without cutting the pipe. Manufactured from durable, zero-lead bronze, this...
Upgrade your plumbing system with the Viega ProPress Copper Union 3/4 in x 3/4 in Press Fitting (Model 79130), engineered for fast, reliable, and flame-free connections. Designed for use with ASTM B88 and B75 copper tubing, this high-performance union fitting allows for easy disassembly and maintenance without cutting the pipe....
The Viega ProPress Copper Union 1" x 1" (79135) is a reliable, high-quality press fitting designed for fast, flame-free pipe connections in plumbing and HVAC systems. Made from durable copper, it delivers excellent corrosion resistance and long-term performance in both residential and commercial applications. Engineered for use with the Viega...
The Viega ProPress Copper Union 1-1/4" x 1-1/4" (79140) is a durable, high-performance press fitting designed for fast, safe, and flame-free pipe connections. Built from quality copper, it delivers long-lasting strength, corrosion resistance, and dependable performance in demanding plumbing and HVAC applications. This union fitting is engineered for use with...
The Viega ProPress Union 1-1/2" x 1-1/2" (79145) is a high-quality copper press fitting designed for fast, reliable, and flame-free pipe connections. Engineered for professional plumbing and HVAC applications, this union allows for easy installation using the ProPress system, reducing labor time while ensuring a secure, leak-resistant joint. Ideal for...
The Viega ProPress Copper Union 2 in x 2 in (79150) is a high-performance press fitting designed for fast, flame-free copper pipe connections in plumbing and mechanical systems. Engineered for reliability and long service life, this union allows for easy system assembly and maintenance without the need for soldering, welding,...
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$171.45
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$171.45
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