Low Torque Air/Vacuum
Rotary Unions

Rotary Systems offers a unique line of low torque air/vacuum rotary unions. These unions are designed specifically for low speed, low pressure, air/vacuum applications that require minimal torque.

The unions utilize a hardened and ground shaft, o-ring seals and dual radial ball bearings to prevent side loading to the seals. The passages are 1/8” NPT and are offered in 2, 4, 6 and 8 passage models. The models shown in the picture are the 2 and 4 passage unions.

See our 028 series to view each size.

Please contact our Technical Sales department at 1-800-959-0146 for operating specifications and torque readings for each model.