Enhancing their already extensive range of instrument needle valves, Oliver Valves now has a family of power industry and steam plant valves to ASME B31.1 Power Piping Code. The Severe Service Needle Valves, constructed of 316 stainless steel, have been specifically designed to meet the most demanding of operating conditions and are engineered for high-pressure, high-temperature applications such as liquids, hot gas and steam lines, leaving them particularly suited to power station operations.