Selection Guides

  • Solenoid Valve Selection Guide

    Solenoid Valve Selection Guide

    Solenoid valve is a kind of industrial equipment controlled by electromagnetism which is a basic automatic components used to control the fluid and adjust the direction, flow rate, velocity and other parameters of medium in industrial control system. There are many kinds of solenoid valve, which ...
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  • Pneumatic Valve Actuator Selection Guide

    Pneumatic Valve Actuator Selection Guide

    The basic working principle of pneumatic valve is that compressed air enters the pneumatic actuator to drive the Piston, and then rotating or lifting torsion shaft drives the stem. Pneumatic valves are divided into single-acting(spring return) and  double-acting. Single-acting(spring return) pneu...
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  • 5 Hot Sale Air Actuated Ball Valves In COVNA

    5 Hot Sale Air Actuated Ball Valves In COVNA

    Air Actuated Ball Valve also named Pneumatic Actuated Ball Valve. As a air actuated ball valve manufacturer & supplier, COVNA offer various air actuated ball valve to used for various applications and industry. Air actuated ball valve is composed of a pneumatic actuator and a ball valve. Pneu...
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  • Electric Valve Actuator Selection Guide

    Electric Valve Actuator Selection Guide

    Electric Valve is a high-end product in automatic control. It not only has the switching function, but also the valve position adjustment function. The Electric actuator stroke can be divided into: 90° angle stroke and straight stroke. COVNA Angle Stroke Electric actuator is used together with an...
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  • Selection Of Valve Body

    Selection Of Valve Body

    ● Ball Valve Ball valve uses a ball with a circular hole as the opening and closing part, and the ball rotates with the stem to realize the opening and closing action of the valve. The ball valve is mainly used to cut off, and change the direction of the flow in the pipeline. The V-shaped ball va...
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