308/311 Series Multi-Ply Expansion Joints

Description

The Keflex™ 308 and 311 Series Multi-Ply Expansion Joints represent Flex-Weld’s industry-leading solution for managing thermal expansion and vibration in piping systems. Designed and manufactured to EJMA standards, these joints feature multi-ply stainless steel bellows that provide flexibility, pressure capability, and reduced spring rates for easier installation and smoother operation.
With pressure ratings from vacuum to 600 PSI, and available in a wide range of end configurations and materials, the 308/311 Series can handle everything from corrosive chemical service to high-temperature exhaust and power applications. Engineered for superior fatigue resistance and low actuation force, these expansion joints deliver long service life, reduced maintenance, and dependable performance in critical HVAC, industrial, and energy systems.