Duff-Norton 500 Series
Around the Shaft
Rotary Unions
Duff-Norton’s Series 500 “Around the Shaft”
Rotary Unions ® are used in conjunction with the
customer’s shaft and retaining sleeve. Series
500 joints are available in two configurations for
high speed, low pressure applications, or high
pressure, low speed applications. Series 500
standard models feature nickel treated carbon
steel construction in sizes from 20mm to
100mm. They are also available in stainless
steel. The high pressure, low speed units can
be used at pressures to 5800 psi, and speeds
less than 100RPM. The high speed, low
pressure models can be used at speeds to
3000RPM, and pressures to 175 psi.
Max Temp. 392° F 200° C
Max RPM 100 100
Max Pressure 5800 psi 400 bar
Max Pressure SS 2900 psi 200 bar
Max Temp. 392° F 200° C
Max RPM 3000 3000
Max Pressure 175 psi 12 bar
