Wedge action restrainer gland

SIGMA’s One-Lok Series SLDE wedge action restrainer gland for 54-, 60-, and 64-inch ductile iron pipes can serve as a way to re-round large diameter pipes in the field. Larger ductile iron pipes are susceptible to shift in transit and handling, often requiring the use of hydraulic jacks on job sites to restore full roundness and specificity prior to installation. SIGMA’s introduction of these three sizes to the market will minimize this costly and cumbersome step. The product provides additional areas to the gland body that contain two sets of three jacking bolts positioned 180 degrees apart. These serve to compress the exterior wall of the pipe and restore its round shape. Unlike the hydraulic jack, which operates on the interior of the pipe and can impact the integrity of the lining, the SIGMA One-Lok re-rounding feature functions solely on the exterior wall.

SIGMA

www.sigmaco.com