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Most of the actuators used in industrial control applications today are pneumatic valve actuators, because the air source is used as power, which is more economical than electric and hydraulic, and the structure is simple, easy to master and maintain. From the point of view of maintenance, pneumatic actuators are easier to operate and calibrate than other types of actuators, and they can also be easily interchanged on the spot. Ideal for flammable and explosive environments when using positioners.

Pneumatic actuated ball valve is different from manual valve. It needs to be in motion and adjustment state during use, and there are many moving parts, and it also bears the impact of various forces such as the unbalanced force of the medium. It is inevitable that various unexpected failures will occur. These failures could be actuators, regulators, and possibly from attached accessory devices. When a fault occurs, it must be dealt with and solved in time, so as not to delay the operation of the equipment of the entire project. Next, let's take a look at the common failure causes and solutions of pneumatic ball valves.

Compared with the general horizontal pump or vertical sewage pump, sewage pump compact structure, small footprint. Small sewage pumps can be installed freely, large sewage pumps are generally equipped with automatic coupling devices can be installed automatically, installation and maintenance is quite convenient. Submersible sewage pump because of the pump and motor coaxial, shaft short, rotating parts light weight, so bearing load is relatively small, life is much longer than the general pump. There is no cavitation damage and irrigation water and other problems. In this article, we introduce the maintenance of sewage pump.

A colorimeter is a device used for colorimetric measurements that measures the absorbance of a specific solution of light of a specific wavelength. Colorimeter is used more and more widely in printing. Whether in screen printing or any other printing method, colorimeters have become an essential piece of equipment in the printing process. in many fields. On top of that are ink color matching, color management and print quality checks.

The ball valve is evolved from the plug valve. It has the same lifting action of rotating 90°, the difference is that the cock body is a sphere with a circular through hole or channel through its axis. The ratio of the spherical surface to the channel opening should be such that when the ball rotates 90°, all spherical surfaces should appear at the inlet and outlet, thereby truncating the flow. The ball valve can be closed tightly with only a 90° rotation operation and a small torque. The completely equal valve body cavity provides a low resistance, straight-through flow path for the medium.

Pneumatic actuated ball valve is an opening and closing control device that operates the valve through compressed air. It not only has fast switching speed, but also only needs one air source, which not only saves a lot of human resources and time, but also does not require on-site operation or high-altitude and dangerous introduction of manual operation. Remote centralized control greatly improves and ensures the safety of use. Therefore, the more widely used in the industrial field, the larger the amount of use and the faster the consumption. In order to enhance the service life of the pneumatic ball valve, daily maintenance is essential.

The physical nature of infrared radiation is thermal radiation. The higher the temperature of the object, the more infrared radiation it emits, and the stronger the energy of the infrared radiation. The study found that the various thermal effects of the solar spectrum gradually increase from violet light to red light, and the largest thermal effect occurs within the frequency range of infrared radiation, so people turn infrared radiation into thermal radiation or heat. The infrared temperature sensor uses the radiant heat effect to cause the detection device to receive radiant energy and cause the temperature to rise, thereby changing the performance of a column in the sensor and the temperature.

Thermal overload relays are protective appliances used for overload protection of motors or other electrical equipment and electrical lines. In the actual operation of the motor, for example, in the process of dragging the production machinery to work, if the machinery is abnormal or the circuit is abnormal and the motor is overloaded, the motor speed will drop and the current in the winding will increase, which will make the winding temperature of the motor. If the overload current is not large and the overload time is short, and the motor winding does not exceed the allowable temperature rise, this overload is allowed.

Colors surround us all the time and affect our emotions, behaviors and beliefs in conscious or unconscious ways. Colors can set emotions, warn us of danger, give us important information, and even bring us joy. Despite its ubiquity, description of color remains elusive, in part because different people perceive color differently. Two of the most advanced types of color measurement instruments are colorimeters and spectrophotometers, both of which use sophisticated technology to precisely quantify and define color. In this article, we will introduce the differences between colorimeter and spectrophotometer.

Sewage pump with compact structure, suitable for conveying liquid containing hard solid, fiber and especially dirty, sticky, slippery liquid. ATO submersible sewage pump is mainly composed of impeller, pump body and base submersible motor. Pump and motor are the same shaft, because the pump is located at the bottom of the whole sewage pump, it can maximize the suction of accumulated sewage on the ground. In this article, we mainly introduce the use of sewage pump some considerations. Understanding these points, we can better use sewage water submersible pump.

Colorimeter is also called the color meter, it is a kind of measuring instrument for material color characteristics, colorimeter is primarily used to measured the color of the material, color, color value measurement and analysis, if the colorimeter machine with computer, can improve the ability of analysis and processing of color, and the user can according to need to color from computer storage in the library to find out all kinds of data for color matching. In this article, we will introduce some basic about colorimeter.

A colorimeter is a laboratory instrument for measuring or specifying colors by comparison with synthetic pigments. Colorimeter is an essential analytical instrument in pharmaceutical analysis. In addition to understanding its purpose and working principle, we also need to pay attention to some problems during use. In this article, we explain some issues that need to be paid attention to during the installation of the instrument.

A relay is an electrical control device, which is an electrical appliance that makes a predetermined step change of the controlled quantity in the electrical output circuit when the change of the input quantity meets the specified requirements. It has the interactive relationship between the control system and the controlled system. Usually used in automatic control circuits, a relay is actually an automatic switch that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

Thermal overload relays are overload relays that apply the principle of current thermal effect and use electrical thermal bimetallic sheets as sensitive components. The electrical thermal bimetal sheet is made by heating and rolling two alloys with large difference in linear expansion coefficient. When heated, the bimetallic sheet bends from the high expansion layer to the low expansion layer. When the current is too large, the element acts due to "heat", so that its linked moving contact cuts off the power supply of the controlled circuit and the protected equipment.

The dedicated solid state relay has the functions of short circuit protection, overload protection and overheat protection. It can realize the intelligent module required by the user and directly use it in the control system with the combination logic curing package. SSR can use external analog signal to trigger the module to achieve linearly adjustable output voltage.

Can industrial water chillers be cleaned with acid? To be sure, pickling as a cleaning method can be applied, but the degree of dilution of the acid and the type of acid must be considered. Air cooled industrial water chiller with full power, built-in stainless steel insulated water tank, durable and easy to clean. Basically, almost all condensers can be cleaned with pickling. In addition, you also need to consider the parts of the chiller that you want to clean, whether it is local cleaning, or the entire system is cleaned and cleaned in a cycle, these two aspects are completely different.

The electric diaphragm pump is a relatively new type of mechanical transportation equipment. It has the advantages of no need for irrigation and water diversion, strong self-priming ability, high pressure, low vibration, arbitrary flow adjustment, and can transport flammable, volatile, and acid-corrosive liquids. Therefore, electric operated diaphragm pump is often used in petrochemical, ceramics, metallurgy and other industries, and occupies a certain leading position in spray painting and ceramics. Next we will troubleshoot the EODD pump.

Colorimeters are commonly used analytical instruments in laboratories and laboratories at all levels. It is the most popular among analysts of all levels due to its simplicity of operation, ease of use, wide range of use, and high accuracy and precision. The wavelength needs to be corrected, but during use, the shape and movement of the speaker can cause the speaker to produce different wavelengths due to various factors. There are many ways to correct the wavelength. In this article, we will introduce two approaches.

The Diaphragm pump, also known as control pump, is the main type of actuator. It changes the fluid flow with the help of power operation by receiving the control signal output by the adjustment control unit. The function of the diaphragm pump in the control process is to accept the control signal of the regulator or computer, change the flow rate of the adjusted medium, and maintain the adjusted parameters within the required range, so as to achieve the automation of the production process.

Peristaltic pump is a kind of hose pump, relying on the flexibility of the hose to work, both can be continuous transmission, can also be filled, the liquid only flows through the hose, so the health grade is higher in all pump types. Peristaltic pump has good self-sealing performance and can be simplified in the design of pipeline. Therefore, in recent years, more and more filling machinery began to use peristaltic pump as a filling unit. However, because of some of the structural characteristics of peristaltic pump, there will be a problem of transmission accuracy in the use of peristaltic pump. The reasons and solutions will be explained in detail below.