Radius L.L.C.
4922 Technical Drive
Milford, MI 48381
Toll Free: 844-673-0773
Phone: 248.685.0773
4922 Technical Drive
Milford, MI 48381
Toll Free: 844-673-0773
Phone: 248.685.0773
For Pricing and Information:
Contact Radius
Contact Radius
Electro Hydraulic Actuator
The Radius Electro-Hydraulic Spring Return actuators are specifically designed for use on quarter turn valves and dampers. The unit utilizes a hydraulic spring return actuator assembled to a compact hydraulic unit. When electric power is lost, the springs in the actuator move it to a fail safe position. The same electro hydraulic unit is used for all models. The unit has many control options such as fieldbus protocol, partial stroke testing devices and 4-20ma modulation positioners.
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Features and Benefits
- Mounting surfaces according to ISO 5211 and VDI/VDE 3845
- Standard NEMS 4, 4x. Wiring from the motor to control box protected with stainless steel tubing
- Circuit pressure remains stable in spite of wide ambient temperature swings
- Multiple combination of springs allow a wide range of torques for one model
- Inner cylinder has been completely honed for long service life
- Internal hydraulic porting eliminates leaking. No tubing, fittings or hoses
- Easy maintenance with smart access to the hydraulic and electrical controls
- Easily upgradable controls
- Smart parts (same electro hydraulic unit is used for all models)
- Temperatures range from -22°F to 176°F
Available Options
- NEMA 7 and ATEX
- For larger torques, scotch yoke electro hydraulic actuators are available
- Low temperature versions down to -58°F
- Stainless steel drive shaft
- Special coatings for very high corrosive environments
- Optional manual overrides attach easily to the actuator. Both manual gear boxes or hydraulic hand pumps
- Fast closing time