The TH Series Rotary Joints are for use with steam, hot water, or hot oil. Duoflow models are available for use with either fixed or rotating siphon. The TH Series feature a ductile cast iron shaft for use with hot oil, but are also available in alloy cast iron shaft for use with steam. The special carbon graphite bearing is lubricated by the process fluid and requires no additional lubrication. The TH Series Rotary Joints are designed for high temperature and high pressure applications.