Metraflex has a wide range of expansion joints for hydronic applications, including the UPC-Listed Metraloop, and is certified to NSF 61 and NSF 372. The family of products offer solutions to any pipe movement problem from thermal expansion or seismic.
The expansion joint does not develop hydrostatic end loads like in line bellows. It almost eliminates anchor loads and reduces the guiding requirements. The Metraloop family of products is available in standard models or custom configurations, with optional materials and end fittings. Metraflex offers a complete line of expansion joints.