- How to Buy
When you need multiple passages, high-pressure and high-speed — all at the same time —look no further than our Hydrostatic line of rotary unions. These unions utilize contact free "gap" seals for cool, wear free running where some controlled leakage can be tolerated. Typical applications include, but are not limited to, wind turbine pitch control and off-road excavation equipment. Contact your Rotary Systems Application Engineer for more information.