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R Rotary joint

R rotary union incorporates the latest technology in mechanical seal design for water, thermal oil, and air service. The balanced seal and carbon-to-tungsten carbide seal package makes the R more robust and able to run longer than other ball bearing designs. The R union is supported by two widely-spaced anti-friction bearings and features a bearing isolation system for added bearing protection. The R union is capable of intermittent dry running and has the seal springs located outside the fluid to minimize potential for fouling. The R is rated up to 200 °C (400° F), 15 bar (300 psig), and 3000 RPM.