{"id":36091,"date":"2025-09-08T09:01:26","date_gmt":"2025-09-08T14:01:26","guid":{"rendered":"https:\/\/www.polywater.com\/?p=36091"},"modified":"2025-09-09T12:00:24","modified_gmt":"2025-09-09T17:00:24","slug":"tailored-sealing-system-for-refrigerant-line-penetrations-in-precast-insulated-walls","status":"publish","type":"post","link":"https:\/\/www.polywater.com\/en\/knowledge-hub\/tailored-sealing-system-for-refrigerant-line-penetrations-in-precast-insulated-walls\/","title":{"rendered":"Tailored Sealing System For Refrigerant Line Penetrations In Precast Insulated Walls"},"content":{"rendered":"
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\"Two<\/p>\n

BACKGROUND<\/h2>\n

A major Tier III data center in the Midwest faced a complex sealing challenge involving its mechanical system. As part of the facility\u2019s climate control infrastructure, dozens of copper refrigerant lines, ranging from 1\/4\u201d to 1-5\/8\u201d in diameter, needed to pass through rectangular openings in precast insulated wall panels. These penetrations varied widely in density, with as few as 4 and as many as 24 lines routed through a single opening. Due to the critical nature of the equipment and the importance of preserving the building envelope, these penetrations needed to be sealed against air, water, and thermal leakage. The seal also had to be adaptable to irregular pipe layouts and tight installation timelines.<\/p>\n

CHALLENGE<\/h2>\n

The project presented several technical challenges. The round copper pipes were passing through rectangular wall openings, creating irregular geometries that were difficult to seal using
\nconventional methods. The varying number of lines per penetration made a one-size-fits-all approach unfeasible. Additionally, because the lines included both liquid and suction pipes,
\nmaintaining a vapor-tight and watertight seal was essential to prevent condensation, thermal bridging, and energy loss. Beyond performance, the sealing solution needed to install cleanly and
\nquickly in a construction environment with limited clearance and minimal tolerance for error. Standard sealing products lacked the flexibility and modularity required for this type of configuration.<\/p>\n

SOLUTION<\/h2>\n

\"CustomRecognizing the limitations of traditional methods, the contractor partnered with Polywater to develop a modular, multi-diameter sealing solution tailored to the specific layout of the refrigerant piping. The final system was a customized solution from Polywater | Hauff-Technik<\/a> which included:<\/p>\n