Duff Norton's 5000 ASM Series rotary union for highly abrasive fluid applications features an ASM seal that is a tungsten carbide face ring against a siliconized graphite ring. Other features include stainless steel wetted construction and hardware for corrosion resistance. The fluorocarbon O-rings and two precision bearings keep the seal faces aligned. All sizes can be adapted to dual-flow applications via a stainless steel elbow. Operating temperatures range up to 395