Smarter, Stronger Riser Piping Solutions for Modern Buildings

Uponor PEX-a, available in sizes up to 3", combines flexibility and strength to accommodate natural building movement and temperature changes, without the stress or challenges of metallic systems. 

• PEX-a pipe up to 3" is ideal for domestic water and hydronic distribution risers 

• A recent white paper on PEX expansion in risers proves large-dimension PEX-a behaves similar to copper in displacement and deflection characteristics  

• PEX-a resists corrosion, pitting, and scale buildup for a longer service life and superior system performance compared to metals 

Uponor PEX-a riser piping eliminates the weight, welding, and corrosion concerns that plague metallic systems. The extreme flexibility of PEX, which is available in long coil lengths, promotes faster, easier installs for contractors and consistent reliability that engineers can trust. 

Designed to mimic the support characteristics of copper and metallics, Uponor PEX-a Pipe Supports promote rigidity, control, and clean aesthetics, all without complicating installation. 

• 9-foot galvanized steel channel support for long, clean runs 

• Copper tube size (CTS)-controlled outside diameter for consistent insulation sizing 

• Fewer hangers needed (enables up to 8-foot spacing) 

Mid-story guides are strategically placed supports between floors help maintain vertical alignment and control pipe movement within the riser systems. This limited, guided movement helps buildings reduce vibration from thermal expansion and contraction. This helps improve the stability of the system and provides a cleaner, more predictable, installation.

With decades of experience supporting high-rise construction, Uponor PEX-a piping solutions provide more than just products—it’s a partnership. Our technical experts, design tools, and training programs help professionals specify smarter, build better, and deliver systems that support long-term performance.

Horizontal mains demand materials that can handle high temperatures, pressures, and continuous operation. Uponor ChlorFIT® Schedule 80 Corzan® CPVC offers engineers a dependable polymer piping solution for domestic water systems and mechanical room layouts. The chemical resistance to aggressive water conditions helps extend system life and maintain clean, safe flow over time. 

Corzan^® is a registered trademark of Lubrizol Advanced Materials, Inc.  

Whether in an apartment building or a hotel, each unit benefits from the flexibility and reliability of Uponor PEX-a pipe and ProPEX® connections. Go one step further and maximize installation speed and system performance by leveraging Uponor ProPEX multiport tees for fewer connections and less waste. 

Uponor Kitting Services is another solution for speed, consistency, and reduced waste. The service provides customized, coordinated packaging with all essential ProPEX fittings, rings, transitions, valves, stub outs, and supports along with a materials list, plan view, and 3D isometric drawing in individual kits labeled by room. 

This revolutionary solution saves significant money by reducing labor costs and eliminating unnecessary material purchasing and handling while also reducing waste with all the necessary components right in one kit.