• How to Select a Valve Actuator: Types of Valve Actuators, Appropriate Sizing, Safety Criteria, and More

    how-to-select-a-valve-actuator Valve actuators are a type of control valve, and there are many options available to meet plant-wide and individual automation requirements. While simple in concept, consisting of a box with an input, output, and a mechanism to operate a valve, there are actually quite a few considerations in choosing the right valve actuator. And because the valve actuator plays a more significant role in a valve’s overall performance in the control loop, it’s a decision that engineers shouldn’t take…

  • 14 Major Contraindications for electric actuator and valve Installation! Just be careful!

    14 Major Contraindications for electric actuator and valve Installation! Just be careful! Installing valves and electric actuators is not an easy thing to do. There are 14 taboos, you know? What would happen if these taboos were violated? How are we going to solve this problem? Today let QOTO valve editorial staff take you to have a look! Taboo 1 The water pressure test was carried out under negative temperature in the winter construction. Consequences: As the water pressure test,…

  • What is a quarter-turn actuator?

    The quarter-turn actuator is an electric device that controls the valve from 0 to 90 degrees. The angular travel of 0~90° is used to control the angular stroke valve such as ball valve, plug valve, butterfly valve and louver valve. The function of the angular stroke electric actuator is Receiving the standard value galvanic signal of 0~10, 4~20 mA or 1~5 volts sent by the regulator or other instrument, after the actuator becomes the displacement thrust or the corner torque…

  • Determining Factors in Choosing Pneumatic VS Electric Actuators

    Since their technologies are so different, determining whether to choose a pneumatic or electric actuator for a process system may seem confusing.   Typically, electric actuators are known for their high levels of precision while pneumatic actuators are considered less expensive and easier to maintain.  Each technology has its inherent advantages and disadvantages and the criteria below should be considered to ensure the best actuator for the application is purchased. 1. Power Source: Determine the most effective power source for the actuator taking into account power…

  • How to select electric actuators?

    Electric rotary actuators are basically geared motors with a variety of electrical accessories (limit switches, heater, circuit boards) that may be specified to meet the exact valve automation requirements of a process control system. As an electrical device it is housed in an enclosure designed for specific area classifications (NEMA Rating). The following guide is for electric actuators and controls only. It is assumed that the valve to be automated has already been selected based on its own unique ability…

  • The installation of the grooved butterfly valve has a bearing on its working life

    The installation of the grooved butterfly valve relates to the service life of the grooved butterfly valve, which is more related to the development of the relevant departments. Therefore, the correct installation of grooved butterfly valve is a basic knowledge that every operator must master. So how should I install it? Perhaps many people do not know how to use it to install, then the next to share with everyone to share his installation skills. Whether it is electric grooved…

  • Trench gate cleaning method for groove gate valve

    Talking about the groove gate valve I believe we all understand, it is our common pipe connection valve, is widely used in coal chemical, petrochemical, rubber, paper, pharmaceutical and other pipelines. But the valve will become dirty after use for a period of time, then the groove gate valve how to clean it? The following is a detailed introduction. The oil and media residues on the valve are suitable for steam purging and even scrubbing with a copper wire brush…

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