SIGMA Corporation is pleased to announce the availability of our SIGMAFLANGETM Universal package Model SFUP in sizes 3-36”. SIGMA continues to lead the industry in product development on behalf of larger diameter pipes for restrain installations (sizes 54-64” for ductile iron pipes and 54” through 60” for PVC pressure pipes) and also expands our nominal ranges for existing product applications.

The SIGMAFLANGETM Universal is designed to connect plain-end ductile iron, steel, AWWA C900 PVC, C909 P VC, ASTM D2241 PVC and HDPE pressure pipes to a variety of flanged fittings, pipes, valves and other flanged appurtenances. A ductile iron adaptor ring provides proper sealing of the adjacent flange outlet using an O-ring gasket while accommodating necessary pipe-end restraint using a SIGMA ONE-LOKTM Model SLGU wedge-action gland for the different pipes listed above.

Benefits of the SIGMAFLANGETM Universal Model

The innovative design of the SIGMAFLANGETM  Universal brings a number of benefits to joint restrain users, as Satheesh Chandrasekaran, Pipe Restraint Product Engineer, explains, “The SIGMAFLANGETM Universal allows for a great deal of flexibility in the field for municipalities and construction engineers. The product accommodates pipe misalignment and readily facilitates service and maintenance requirements. We also believe that our advanced technology leads to better compression and sealing.”

To view SIGMA’s SFUP Assembly Installation Video, please visit:

The video can also be accessed via the following QR Code:






For further information about SIGMA’s pipe restraint product line, please contact Steve McDonald at