Seismic Flex Coupling™

Whether it’s ground displacement, liquefaction, strain along a fault line or structure, McWane Ductile’s Seismic Flex Coupling provides a reliable, economical solution. Made of Ductile iron, the coupling has a 350 PSI pressure rating and conforms to all requirements of AWWA C153. With its time-proven TR Flex® joint design, it maintains the high pull-out strength required in seismic activity areas even when fully deflected.