The Haag + Zeissler ROTATING Series 9001 ND is a versatile rotary union engineered for transferring air, steam, water, heat transfer oil, non-toxic gases, and vacuum in rotating industrial systems. It supports a maximum pressure of 17 bar for water, 10 bar for steam, and 6 bar for air, heat transfer oil, and non-toxic gases, with 0 bar for vacuum operation. The unit operates at rotational speeds up to 700 rpm with NPT threading and up to 1500 rpm with ISO 228 threading, and is also available with quick-release and welded flange configurations. Designed for durability and precision sealing, the 9001 ND ensures reliable, leak-free performance and extended operational life across demanding thermal and pneumatic applications. Across North America, Europe, Asia, and worldwide, installation methods and connection standards may possibly vary according to regional mechanical and process engineering requirements.