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Current Location: vtovalve >> Products >> Actuators >> Hydraulic Actuators >> BRM Series Helical Hydraulic Actuators
BRM Series Helical Hydraulic Actuators
1. General
BRM series hydraulic actuator designed by helical swing-cylinder structure. The shaft of the actuator rotating by relative motions of two kinematic pairs. One is inside spiral of housing and outside spiral of piston, another one is inside spline of piston and outside spline of output shaft.
Features:
- Compact design
- Large output torque
- Accurate swing angle
- Zero leakage
- Smooth action
- Balanced and zero fraction, long life
2. General
Pressure on "A", indicator slot is moving clockwise, Valve closed and indicator slot is parrallel to mounting area.
Pressure on "B", indicator slot is moving counter-clockwise, Valve open and indicator slot is perpendicular to mounting area.
3. General Characteristics
|
Installation arbitrary |
Material of Intermediate Flange C45 |
|
Suited Ambient Temperature -20℃~+80℃ |
Working Pressure Max. 13.5MPa |
|
Actuator Type helical balanced quarter-turn actuator |
Burst Pressure 67.5MPa |
|
Material of Housing GGG40 |
Rotation 90°±1° |
|
Material of Piston GGG40 |
Hydraulic Medium
mineral oil according to DIN51524, |
|
Material of Shaft C45 |
Contamination Level for Hydraulic Medium max. class 9 in accordance with NAS1638 |
|
Material of Indicator Shaft stainless steel |
Viscosity 15cst~200cst |
4. Output Torque and Displacement
5. Dimensions and Weights
6. Flange
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