SIGMA expands domestic pipe restraint product line

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SIGMA Pipe Restraint Products, a division of SIGMA Corporation, has announced a new domestic manufacturing strategy for its restraint product line. Effective immediately, SIGMA has expanded its production capability through the addition of new production facilities in the USA. 

SIGMA has introduced a two-fold domestic strategy by first entering into a new partnership agreement with a major manufacturer of pipe products and tools for the waterworks industries, and second, by investing in new tooling to support and strengthen capacity with long-standing production partners in the United States. 

The new strategy is a response to increased demand for domestic restraint products and coincides with a nationwide restructuring of the company’s supply chain for optimal efficiency. 

Greg Fox, manager of Corporate Business Development, commented on the new agreement: “We’ve been a leader in restrained joint devices for the last decade, but recently identified a need among our customer base for a wider range of domestically produced restraints. We are confident that these initiatives will serve our customers well while maintaining the quality and service standards for which we are known in this industry.” 

As one of the leaders in the restrained joints market, SIGMA has also announced its restrained joint recommendations for the AWWA C909 PVC pressure pipes, following exhaustive testing. SIGMA will be updating its website shortly with specific technical recommendations for the proper restraint when joining AWWA C909 PVC pipes to a ductile iron water main fitting or a bell x spigot PVC pipe joint. 

According to SIGMA’s restrained joint product manager, Steve McDonald: “There is growing acceptance of PVC pipes, including AWWA C909, in engineering and municipal circles, in both the U.S. and Canada. We’ve seen a sizeable increase in the number of product and information requests we receive about how to join PVC to other non-PVC materials. It’s becoming increasingly important that restraint suppliers can provide technical advice across the spectrum to cope with all combinations of materials.” 

SIGMA Corporation has been developing products for the North American water and wastewater industry for over 25 years. Today, the company is one of the world’s largest suppliers of specialty water products within the American Waterworks Association range. SIGMA is also an important OEM supplier to the water industry, working with customers to develop value added and engineered solutions for the valve, hydrant, and pump sectors. 


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