The Haag + Zeissler ROTATING Series 9001 G-MD is a heavy-duty rotary union designed for the transfer of air, steam, water, heat transfer oil, non-toxic gases, and vacuum in industrial and process 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 400 rpm for DN 50 (2"), 300 rpm for DN 65 (2 1/2") and DN 80 (3"), and 250 rpm for DN 100 (4"), ensuring stable and leak-free performance across various pipe sizes. Built for long service life, precision sealing, and high thermal reliability, the 9001 G-MD delivers dependable operation in demanding heat transfer and pneumatic systems. Across North America, Europe, Asia, and worldwide, installation configurations and connection standards may possibly vary according to regional industrial requirements and process system specifications.