Sigma Corporation

About Us

SIGMAFLOW is a Kolkata, WB, India company, in business since 2009.
SIGMAFLOW’s core products have been Valves, Waterworks pipe fittings, Manholes, Gully Gratings and accessories, in CI and DI, as per the BIS/ISI standards.
With proven and established production system of the our range of products and exclusive technical collaboration with SIGMA Corporation, USA we have pioneered production of these products and aim to achieve the same results as our other group companies.
Today SIGMAFLOW offers the widest range of valves, pipe fittings and manholes in the industry and can satisfy every requirement on a job.
Our quality is ensured through proprietary quality systems that exceed the requirements of BIS/ISI and other national standards. These are monitored by on-site SIGMAFLOW engineers who ensure all aspects of supply chain reliability. Our products also undergo third party inspection on a regular basis.