The Duff-Norton 1900 Series rotary union is designed to provide a rotating seal between fluids and a revolving roll or drum. Commonly conducted media are water, hot oils, chemicals, hydraulics and air. The 1900 Series was developed for very-high-pressure applications up to 10,150 psi (700 bar) and with maximum temperature ratings up to 248°F. Standard models feature nickel-treated carbon-steel construction, but are also available in stainless steel. The 1900 Series is equipped with a double-acting thrust bearing and bronze bushing. The bearing permits higher pressures, while the bushing increases the guide of the shafts to allow rotating speeds faster than those obtained from most high-pressure models. Sizes range from 0.25 in. to 3 in.
Company
Duff Norton