SIO was founded in 2009 with a commitment to providing customers with complete solutions for industrial ball valves. We specialize in the design and manufacturing of ball valves widely used in oil and gas, chemical, power, mining, water treatment and general industrial systems. We offer a wide range of products adhering to API, ASME, BS, ANSI and other standards. Our products are made in a large variety of cast steel and forged steel materials such as carbon, alloy, stainless and other special alloys including duplex, alloy 20, Inconel, hastelloy and monel. Using these same materials and adhering to the same standards.