Anderson Greenwood, a Tyco Valves and Controls company, has launched a large-bore severe-service instrument isolation valve, which has all the benefits of a metal-seated gate valve but is configured as a conical seated plug valve. This means that it is less susceptible to blockage from challenging process media and is fully roddable. The severe-service instrument isolation valve is designed to act as the primary isolator for instruments and instrument lines, and is particularly suited to applications in the power and oil & gas industries. Due to its multi-functional properties, such as its capacity for extremely high pressures and temperatures, it eliminates the need for first isolation cryogenic valves, or high-temperature steam valves. Due to its straight-through flow design, the valve is far less susceptible to the erosive effects of steam than conventional alternatives. Tyco valves of this type have already been installed at several major projects across the globe, including oil and gas applications in Canada and North America, and power generation locations in China.
