Duff-Norton Modular Actuators
Duff Norton modular actuators are made for a variety of applications. They are custom made by matching standard actuators with electric, air, hydraulic or explosion proof drive units.
Duff Norton translating tube machine screw models feature a traveling lift nut which allows precise load positioning. Translating tube actuators are used when environmental contamination is anticipated as they have an enclosed lifting screw and translating tube. For use in locations relatively free of dust, dirt and moisture.
Optional limit switches and transducers are available on the translating tube machine screw modular actuator.
9000 Series
General Purpose Rotary Unions
MEDIA: Water, Steam, Hot Oil
PRESSURE: 250psi (Water), 175 psi (Steam), 100 psi (Hot Oil)
TEMPERATURE: 375ºF (190ºC)
SPEED: 700 RPM
MATERIAL: Cast iron housing with stainless steel or plated sleeve
THREADS: 1/4 Inch to 3 Inch NPT, MT, BSP, and flanged connection available
FEATURES & BENEFITS
ADVANCED SEALING SYSTEM
The Bellows Sealing System provides superior sealing performance throughout the wear life of the Rotary Union.
SUPERIOR ALIGNMENT
Dual bearings available in all sizes over 1-1/4 inch to provide superior alignment.
RESISTS DEBRIS BUILD-UP
Compared to seals utilizing springs, the 9000 series bellows sealing system is more resistant to debris in contaminated media, which reduces clogging.
EASY MOUNTING
The flange attaches directly to the machine journal, providing inherently concentric mounting, minimizing overhang, and partially relieving bearing load to increase service life.
