Controlling the flow of fluids in industrial systems is a crucial part of the operation. Looking for the right valve can make or break your system. This is why you should know the 4 methods of valve actuation since they play a critical role in how valves operate.
Basically, there are 4 methods of valve actuation: solenoid-operated, manually operated, remote air-operated, and mechanically operated. In this blog we’ll explore more about them so that you can make an informed decision on which one suits your needs.
What Are the Different Methods of Valve Actuation?
Valve actuation refers to how a valve is moved to open or close. Its main function is to allow or restrict fluid flow. Each method of actuation has its unique mechanisms.
| Method of Actuation | Description | Key Features |
| Solenoid-Operated | Uses an electromagnet for rapid valve movement. | Fast operation, automation-ready |
| Manually Operated | Requires human input via levers or cranks. | Simple, cost-effective, emergency use |
| Remote Air-Operated | Controls valve movement with compressed air from a distance. | Safe, fast, ideal for hazardous areas |
| Mechanically Operated | Uses mechanical inputs for flow regulation. | Durable, simple, customizable |
Solenoid-Operated Valve Actuation
Solenoid-operated valves are equipped with an electromagnet (the solenoid). It controls the valve’s movement. This valve actuation is common in automated systems. This is because a solenoid-operated valve provides rapid response times. Plus, can be easily integrated into a control circuit.1
What does a solenoid do in this context? How does the solenoid valve work? A solenoid consists of a coil of wire. When energized, it creates a magnetic field that pulls or pushes a plunger or armature. The latter is responsible for opening or closing the valve.
Key Features:
- Fast-operation
- Limitations
- Automation-ready
Manually Operated Valve Actuation
Manual valves rely on human intervention for operation. These valves are operated by hand through levers, wheels, or hand cranks. While not suited for automated systems, manually operated valves are simple and reliable.
These valves are commonly used in applications where automation is unnecessary or where frequent adjustments are not required.
Manual valves are often used in emergency systems, small-scale operations, or backup systems. These systems need minimal automation.
Key Features:
- Straightforward construction
- Cost-effective
- Suitable for emergency situations
Remote Air-Operated Valve Actuation
Remote control valves are often referred to as air-operated or pneumatic actuators. This system compresses air to control the valve’s movement. These valves are typically controlled from a distance using a pneumatic signal. Such function makes them ideal for use in hazardous environments or areas that are difficult to access.
Key Features:
- Safe operation
- Fast and reliable
- Innovative design
Mechanically Operated Valve Actuation
Mechanically operated valves regulate the flow of compressed air in pneumatic systems. They utilize mechanical inputs like levers or cams. These valves are classified by their port and state configurations:2
- 3/2-way
- 5/2-way
- 5/3-way
The first number represents the number of ports, while the second indicates the valve’s positions or states.
Key Features:
- Durable and reliable
- Simple operation
- Customizable configurations
Which One Should I Choose?
When selecting the best valve actuation method for your system, it’s essential to consider the specific needs of your application:
- Choose Solenoid-operated Valve Actuation if you need quick response times and automation. These include water treatment, HVAC, and chemical processing.
- Choose Manually Operated Valve Actuation if your application is small-scale or does not require frequent adjustments. Since they rely on human intervention, they are best suited for low-maintenance systems.
- Choose Remote Air Operated Valve Actuation (Pneumatic Valves) if your system is located in a hazardous environment or hard-to-reach areas.
- Choose Mechanically Operated Valve Actuation if you require a robust, mechanical solution with no need for external power.
Why Partner with Gowin Valves?
When it comes to valve manufacturing, Gowin Valves stands as the premier choice for industries worldwide. Since its founding in 2007, Gowin has been a trusted valve manufacturer. Their products have served critical sectors such as oil & gas, chemical, metallurgy, power stations, water supply, and energy industries.
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