by Doug Riseden, Technical Support Manager

The HYMAX is designed for connecting pipes to flex four degrees within the coupling, allowing the pipes to move when the ground shifts.

For this feature to work, however, make sure that there is some space between the pipe endings (for exact space, check product spec sheets). Don’t shove the pipes into the coupling until they touch. If they do, the connecting pipes will get in the way of each other, and will not allow for continuous dynamic deflection. At that measurement, the pipes will be beyond the depth of the gaskets, and allow for a complete seal and continuous dynamic deflection.