In modern industrial automation, precise and reliable control of fluids and gases is essential to keeping processes safe, efficient, and repeatable. At the heart of many of these systems are solenoid valves, which convert electrical signals into controlled fluid movement.

Among the leading solutions on the market, ASCO solenoid valves are widely trusted for their performance, range of options, and suitability across many industries and applications.

Where ASCO Solenoid Valves Are Used

ASCO offers solenoid valve solutions that support everything from simple on/off control to more complex flow regulation.

You’ll find ASCO solenoid valves in applications such as:

• Managing water, air, or gas in general industrial automation
• Controlling fluid flow in food and beverage equipment and dispensers
• Regulating air in pneumatic systems for actuators and tools
• Handling steam, inert gases, or other media in process and utility systems

Their reliability and responsiveness make them a core component in many automated control loops and safety-related functions.

Main Types of ASCO Solenoid Valves

ASCO designs different solenoid valve configurations to match specific control tasks and media requirements. Common types include:

• Two-way valves: Typically used for straightforward on/off control of a single flow path, opening or closing the line as required.
• Three-way and four-way valves: Used to divert, mix, or alternate flow paths, often in pneumatic actuation and more complex circuits.
• Proportional valves: Allow more precise adjustment of flow or pressure, rather than just fully open or fully closed states.
• Special-duty and explosion-proof valves: Designed for hazardous or demanding environments where safety and compliance are critical.

Selecting the right configuration depends on how many ports you need, whether you’re starting, stopping, or redirecting flow, and the control accuracy required.

How ASCO Solenoid Valves Work

Solenoid valves use electromagnetic force to open or close a flow path, allowing electrical signals to directly control fluid or gas movement.

When an electrical current energizes the solenoid coil, it creates a magnetic field that pulls a plunger or armature, changing the valve position to open or close the flow path. When the current is removed, a spring or the system’s pressure returns the plunger to its original position, reversing the flow condition. This simple, robust on/off action is what makes solenoid valves fast, repeatable, and easy to integrate with automation and control systems.

Key Considerations When Selecting an ASCO Selecting an ASCO Solenoid Valve

Choosing the right ASCO solenoid valve is essential for safe, efficient, and reliable system operation. Important factors to review include:

• Fluid or gas type: Compatibility with the media (e.g., water, air, inert gas, steam, light oils) and any cleanliness or certification requirements.
• Pressure and temperature: Operating ranges the valve must withstand, including normal conditions and potential extremes.
• Function and configuration: Number of ports and positions, on/off vs. proportional control, and whether the valve is normally open or normally closed.
• Environment: Ambient conditions, electrical area classification, and any need for explosion-proof or special-duty construction.

Leveraging ASCO’s documentation and guidance helps ensure you select a valve that meets both performance and regulatory requirements for your application.