Tech Theory: Technical…Practical… Interesting Automation Industrial Solutions
At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control air supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
3 minutes to understand the different types of control valves and actuators in industry
Catalog
1. Motorized Valve
1.1 Motorized ball valve
1.2 Motorized butterfly valve
1.3 Electric actuator
1.4 Small electric valve
2 .Three types of electric actuators
2.1 Switching type
2.2 Regulating type
2.3 Intelligent type with display
3. Pneumatic valve
3.1 Pneumatic ball valve
3.2 Pneumatic butterfly valve
3.3 Pneumatic actuator
3.4 Pneumatic angle seat valve
4.pneumatic actuator two types
4.1 Single acting
4.2 Double acting
5.Pneumatic valve common accessories
5.1 Limit switch box
5.2 Positioner
5.3 Pneumatic directional solenoid valve
5.4 Hand wheel
5.5 Pneumatic components (triplet)
5.6 Muffle
6.Pneumatic couplings/duplicates include the following
6.1 Regulator
6.2 Air filter
6.3 Oil Mist
6.4 Pressure gaug
7.Valve Selection Guide
Electric/gas control valves play a vital role in regulating the flow, pressure and temperature of liquids and gases in various industries. Control valves are used in a wide range of applications and are an important part of many industrial processes. This article is designed to cover what you need to know about control valves to help you understand their functions, types, how to choose a valve, and more. Whether you’re a student, an engineer, or just curious, this guide will provide you with the knowledge you need to understand the importance of control valves in the modern world. requirements. In this article, we would like to systematically and professionally introduce different types of control valves, components, functions, application scenarios and valve accessories.
Motorized Valve Introduction
Motorized valve is a kind of valve controlled by electric actuator, which is used to regulate, cut off or change the flow direction of fluid. Its core component is the electric actuator, through the drive of the electric actuator, the valve opening, closing or regulating action can be realized. Motorized valves are characterized by fast response, precise control and automatic operation, and are widely used in fluid control systems in industrial fields. Through the motorized valve, the precise adjustment of fluid flow, pressure, temperature and other parameters can be realized, which improves the efficiency and safety of the industrial production process.
Motorized ball valve is a kind of ball valve controlled by using electric actuator. It opens or closes the fluid passage by rotating the sphere through the electric actuator. Motorized ball valves are widely used in systems that need to cut off fluids quickly, featuring fast response and high reliability.
Electric butterfly valve is a kind of butterfly valve controlled by using electric actuator. It rotates the valve disc through the electric actuator to regulate the flow of fluid or close the fluid passage. Motorized butterfly valve is suitable for the system that needs to adjust the fluid quickly, and it has the advantages of simple structure, light weight, flexible operation and so on.
Electric actuator is a device used to control the opening and closing of valves, usually driven by an electric motor or electromagnetic mechanism. Electric actuator can realize remote or automatic operation according to external signals, which is an indispensable key component in industrial automation control.
Small motorized valves are electric valves that are small in size and low in power, and are usually used in small systems or equipment that require precise fluid control. These valves are characterized by small size, easy installation, and quick response, and are suitable for the needs of some special occasions.
Three types of electric actuators
The following different types and functions of these electric valves and electric actuators can meet different fluid control needs in the industrial field and improve the safety, stability and automation level of the system.
Switching type:
Switching type electric actuator is mainly used to control the opening and closing of the valve, its operation is simple and clear, through the received signal to control the state of the valve so as to realize the on-off.
Regulating type:
Regulating type electric actuator can precisely control the position of the valve according to the received signal, thus realizing the precise adjustment of fluid flow, pressure or temperature.
Intelligent type with display:
Intelligent electric actuator with display screen can intuitively display the status, position and parameters of the valve, realizing real-time monitoring and remote control of the valve status. This type of electric actuator usually has a higher level of intelligence to better meet the needs of industrial automation control.
Control valve components
Control valves typically consist of several key components that work together to achieve precise control of fluid flow, pressure, or temperature. The following are some common control valve components:
Pneumatic valve is a device that utilizes the pressure of air source to control the opening, closing or adjustment of valves, which is widely used in industrial automation control system. It consists of two parts, the pneumatic actuator and the valve, and the operation of the valve is realized through the action of the pneumatic actuator. Pneumatic valve has many advantages, including fast response, high reliability, strong safety and easy operation.
First of all, the fast response of pneumatic valve is one of its major advantages. Because the pressure of the gas source can immediately respond to the control signal, the pneumatic valve can complete the switching action in a short time to achieve rapid fluid control. This makes pneumatic valves especially important in applications that require emergency cutoff of fluid flow or rapid flow adjustment, such as in emergency shutdowns or process adjustments.
Secondly, pneumatic valves are highly reliable. Because pneumatic actuators use air pressure as a power source and are not limited by power supply, they can still work properly in harsh environments or when electrical equipment is damaged, improving the stability and reliability of the system. This makes the pneumatic valve widely used in some industrial occasions that require high stability, such as chemical, petroleum, pharmaceutical and other fields.
In addition, pneumatic valves have strong safety. Due to the role of the pressure of the gas source, the pneumatic valve in the power outage or emergency can still maintain the state of the valve, to ensure that the system will not be due to the failure of the external power supply and the occurrence of unforeseen circumstances. This is especially important for some production sites with high safety requirements, such as chemical plants, oil and gas pipelines and other hazardous environments.
In addition, pneumatic valves are easy to operate and have low maintenance costs. Pneumatic valve operation is relatively simple, only need to control the pressure of the gas source to complete the opening, closing or adjustment of the valve, without complex electrical wiring and control systems. At the same time, the pneumatic valve structure is simple, few parts, maintenance costs are relatively low, reducing the production and operating costs.
Pneumatic ball valve:
Pneumatic ball valve is a kind of ball valve controlled by pneumatic actuator, utilizing the force of pneumatic actuator to rotate the sphere so as to realize the cut-off or passage of fluid. This valve is suitable for the need to quickly cut off the fluid flow of the occasion, with a rapid response, simple structure and other advantages.
Pneumatic butterfly valve:
Pneumatic butterfly valve is a kind of butterfly valve controlled by pneumatic actuator, rotating the valve disc through the force of pneumatic actuator to regulate the flow of fluid or close the passage. This kind of valve is suitable for the system which needs to adjust the fluid flow quickly, and has the characteristics of flexible operation and easy maintenance.
Pneumatic actuator:
Pneumatic actuator is a kind of actuator controlled by the pressure of air source, used to control the opening, closing or adjustment of the valve. It drives the movement of the valve through the change of the pressure of the gas source to realize the control of the fluid. Pneumatic actuators are widely used in fluid control systems in various industrial fields.
Pneumatic angle seat valve:
Pneumatic angle seat valve is a kind of angle seat valve, which controls the opening and closing of the spool through the action of pneumatic actuator. This kind of valve is suitable for high pressure, high temperature, large diameter in the fluid control system, with corrosion resistance, high pressure resistance and other characteristics.
Two types of pneumatic actuators
Single acting:
A single-acting pneumatic actuator can only produce thrust or pull in one direction and usually requires an external force to reset it. Under the action of air source pressure, it can realize one-way control of the valve, commonly used in some simple fluid control system.
Double acting:
Double-acting pneumatic actuator is able to produce thrust or tension in two directions, and does not require external force to reset it. It can realize bidirectional control of the valve according to the change of the pressure of the gas source, commonly used in systems with strict requirements on the direction of fluid flow.
The different types and functions of pneumatic valves and pneumatic actuators, the following common industrial areas of different fluid control needs, improve the safety, stability and automation level of the system.
Common accessories for pneumatic valves
In industry, pneumatic valves, as an important part of the fluid control system, are often equipped with a variety of accessories to enhance their function, improve operational efficiency, and ensure safety. The following are common pneumatic valve accessories:
Limit switch box:
Limit switch box is mounted on the pneumatic actuator for detecting the opening and closing position of the valve and transmitting the signal to the control system to realize the monitoring and control of the valve position.
Positioner:
Positioner is a device used to adjust the working position of pneumatic actuator, and control the action range of pneumatic actuator by adjusting the pressure of gas source, so as to realize the precise control of valve position.
Pneumatic reversing solenoid valve:
Pneumatic reversing solenoid valve is used to control the on-off and direction switching of the gas source, through controlling the supply of the gas source, it realizes the forward and reverse movement of the pneumatic actuator, so as to control the opening and closing of the valve.
Handwheel:
Handwheel is a device for manual operation, installed on the pneumatic actuator, when the gas source failure or emergency occurs, you can manually operate the handwheel to control the opening and closing of the valve to ensure the safe operation of the system.
Pneumatic components (triplex):
Pneumatic components, also known as triplets, include filters, pressure-reducing valves and lubricators, which are used to process the air source, remove impurities, regulate air pressure and provide lubrication to the pneumatic actuator to ensure the normal operation of the pneumatic valve.
Muffler:
The muffler is installed at the inlet and outlet of the pneumatic valve to reduce the impact sound and vibration generated when the pressure of the air source changes, to reduce the noise, to protect the system equipment, and at the same time to improve the working stability and life of the pneumatic valve.
The selection and installation of these accessories can be customized according to specific industrial application requirements. By equipping with suitable accessories, the function of the pneumatic valve can be enhanced, the operation efficiency can be improved, and the safe and stable operation of the system can be ensured.
Pneumatic couplings/duplicates
Pneumatic couplings/duplicates are multi-functional devices that typically include components such as regulators, air filters, oil misters, and pressure gauges that are used to process the air source and provide a clean, stable supply of gas to the pneumatic system. The following are common pneumatic coupling/duplex components:
Regulator:
Regulators are used to regulate the pressure of the gas source, adjusting the high pressure gas source to the stable working pressure required by the system, ensuring the normal operation of all components of the pneumatic system and preventing damages caused by excessive pressure of the gas source.
Air filter:
The air filter is used to filter solid particles, liquid water and oil mist and other impurities in the air source, keep the air source clean, prevent impurities from entering the inside of the pneumatic system, and protect the system equipment and valves from pollution and damage.
Oil Mist:
An oil atomizer is a device used to add lubricant to the gas source, atomize and mix the lubricant into the gas to provide the necessary lubrication for the pneumatic system, reduce the friction and wear of the pneumatic actuators and valves, and extend the service life of the equipment.
Pressure gauge:
The pressure gauge is used to monitor the pressure of the gas source and display the value of the gas source pressure in real time, so that the operator can understand the change of the gas source pressure at any time and adjust the regulator in time to ensure that the pressure of the gas source is stabilized in the safe range.
Pneumatic couplings/duplicates are usually installed at the air inlet of the gas source, through which these components process and regulate the gas source to ensure the provision of a clean and stable gas supply to the pneumatic system to ensure the normal operation of the pneumatic system and the stable operation of the valves.
Valve Selection Guide
Confirm the size of valve you need. We offer pneumatic ball valves from 1/2 inch to 8 inches. If you need a larger size, please let us know and we will check if we can customize it for you.
Confirm the valve body material you need. We offer pneumatic ball valves in stainless steel 304, ss316, ss316L.
Confirm the type of valve connection you need. We produce three-piece ball valves with threaded, flanged, tri-clamp and welded connections for you to choose from Confirm the pressure and operating temperature. Pressure and temperature are important points and they may affect the cost.
Tell us about your medium. Different media have different characteristics, we will help you select the valve according to the requirements of the media.
Confirm the type of actuator you need. We offer double acting pneumatic valve actuators and spring return (single acting) pneumatic valve actuators for your project.
Tell us if you need pneumatic accessories
Let us know any requirements, such as core material, sealing material or connection standards. We can help you customize the valve you need.
At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable control valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control valve supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
Furthermore, our competitive pricing on electronic pressure regulators enables you to offer top-notch solutions. As one of the leading control valve manufacturers, we take pride in delivering reliable valves that not only meet industry standards but also contribute to the overall profitability of your business. By partnering with DELCO, you can have peace of mind knowing that you are making a wise choice for the long-term success of your company.
