FLUID HANDLING RX-1, RX-2, RX-3 Rotary Union 4” to 6” Tapered Roller Bearing Support The RX rotary union connects stationary piping to a rotating device. The fluid is sealed by precision, micro-lapped seals that provide a uniform, full-flow design. The union is supported by two widely-spaced anti-friction bearings and is available with a bearing isolation system for added bearing protection. The RX union is capable of intermittent dry running and features a 100% pure-molded carbon graphite or silicon carbide seal and tungsten carbide counterseat. Overview Features • Springs located outside the flow area • Stainless steel rotor • Two-piece housing, on-machine seal replacement • O-rings fully captured in glands • Balanced seal assembly • Full flow area • Matched seal faces • Bearing isolation system available • Tungsten carbide counterseat Maximum RX Ratings Pressure: Benefits • Improved reliability, increased flow area • Corrosion resistant • Reduced down-time and cost of maintenance • Robust design, no risk of o-ring slipping • Extended operating life • Low pressure drop • Materials selected for specific service • Increased bearing protection

Dual flow threaded connection Single flow threaded connection Approx. Weight Single flow flanged connection Dual flow flanged connection Approx. Weight * For 4” and 5” sizes, pilot length is 0.30” (7.6 mm). Pilot length for 6” size is 0.56” (14.2 mm). Dimensions are for reference only and subject to change. www.kadant.com K A D A N T J O H N S O N LLC 805 Wood Street Three Rivers, MI 49093 USA Kadant is a global supplier of high-value, cri