The double-guide design provides internal support for the rotary joint and maintains alignment even when the roll or cylinder is not concentric. The ELS rotary joint is available in single-flow or with stationary syphon dual-flow configurations for steam service. Sizes range from 2" up to 12" and the joint is rated up to 650°F (343°C), 300 psig (20 bar) and 200 rpm.
US Patent No. 5,226,677