Tél. 33 (0)3 23 70 70 00 • duff-france@duffnorton.fr

4500 Series


Duff-Norton rotating unions are available in three sizes: 1/2”, 3/4” and 1”, as well as single or duo flow.
They have been designed to fit inside a rotating cylinder.
They are ideal to cool low speed rotating cylinders.
They are made of bronze.
The rotating shaft is supported and sealed by a patended composite sealing system.
The external sealing of the rotary union is performed by a viton seal.


Technical Data:

Number of ports: 1 way, 2 ways
Fluid: Air, Oil
Rotation Speed: Articulation (up to 5 RPM), Low speed (from 5 to 20 RPM), Intermediate speed (from 20 to 1500 RPM)
Pressure working: Low (from 0 to 10 bars)
Size: from 1/8″ to 1/4″, from 1/4″ to 3/8″, from 3/8″ to 1/2″, from 1/2″ to 1″
Material: Bronze, Stainless Steel
Implantation: Angle elbow
Temperature working: up to 120°C
Connection: Thread

*for any other type of connection, please contact us.

Quick Ship Program (QSP) :

Not available

Available products within 1 working day (ex-works)

Carbon Steel:

Not available

Stainless Steel,Models:

Not available

STEP files for downloading: