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Descriptions

Vastas produces pneumatic and hydraulic actuators and offers integrated solutions.

Linear Hydraulic Actuators

These are used for automation of Globe, Gate and Control valves by means of hydraulic piston. Opening and closing of valve obturator are maintained by hydraulic power. Control devices for such actuators are produced depending on application purposes. Spring Return Or Double Acting Types of Lineer Hydraulic Actuators are avaible, too.

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Quarter Turn Hydraulic Actuators

VASTAS prefers the Quarter Turn Actuators with canted scotch yoke mechanism, which provides torque advantage when critical torques are required. Open/close motions of valve is provided by hydraulic piston power and spring power. Close with spring or open with spring types are manufactured. When high torque is required, they may be produced as double acting. They have smaller piston diameterbut higher pressure output than similar pneumatic actuators.

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Gas Over Hydraulic Actuators

These are designed for usage in Natural Gas Pipelines, working with line pressure. They can automatically operate under each weather condition where no personnel electric energy are present. Various types are offered depending on application, pressure fluctuation climate and field conditions, etc. See Gas Over Oil Actuator catalog for detailed information.

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Electro Hydraulic Actuators

Electro Hydraulic Actuators with canted scotch yoke mechanism, which provides torque advantage when critical torque is required and may be produced as double acting. Alternative energy sources can be added upon request. They can operated using the energy, collected in the reservoir tanks.

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Mae Reklam