Deflection Gauges & Mandrels

Pipe deflection gauges are used to test sewer pipe for out-of-roundness or deflection. The use of these gauges helps ensure that flexible pipe has been properly bedded and backfilled. NTS offers mandrels in single and multi-size kits from 4” thru 24” made from steel or aluminum for SDR 35 or SDR 26 pipe thicknesses.