| Duff-Norton's Series 600
Rotary Unions®
are the perfect choice for height
speed applications. The 4000 Series features a unique balanced
seal for long life and low torque, and a double row ball bearing to
absorb radial and thrust loads. The 4000 Series features a
stainless steel shaft, bronze housing and a primary seal of carbon
graphite against ceramic to offer maximum life and durability. The
4000 Series is available in single or dual flow models. |

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