The Model 70 is a multi-pass fluid rotary union that has served as the standard FRU to the diving industry for over 30 years. It is available as a stand alone FRU or can be combined with electric slip ring and fiber optic rotary unions. Typically configured with up to 13 passes, inter-port mixing is prevented through the use of double seals and an intermediate vent between passes. It has also proven itself in non diving applications such as centrifuge, indexing tables, and floating oil production swivels where product quality is paramount.
The Model 70 is available in several standard port configurations as illustrated below. The Model 70 is available with two standard application specific seal options. In its standard configuration, it is rated for 1000 psi [68 bar] at 10 rpm continuous service and up to 30 rpm intermittent service.