What Is a Motorized Ball Valve? A Complete Beginner’sGuide

If you're new to the world of valve automation, the term motorized ball valve might sound

complex. In reality, it's a simple yet powerful device that plays a vital role in controlling the flow of liquids or gases in HVAC systems, plumbing setups, and industrial automation.

In this guide, the experts at Enolgas USA explain what a motorized ball valve is, how it works, and where it’s used—so you can make informed choices for your next project.

What Is a Motorized Ball Valve?

A motorized ball valve (also called an electric ball valve or motor-operated valve) is a two part assembly:

1. Ball Valve – A mechanical valve with a spherical disc (the “ball”) that controls flow.

2. Electric Actuator – A motor-driven device that rotates the ball 90 degrees to open or

   close the valve.

   
   

By combining these components, a motorized valve allows for remote or automated control of flow in a pipeline without manual intervention.

Think of it as a ball valve you can operate with a switch, timer, or building automation

system.

Electric motorized brass ball valve equipped with a black control unit featuring a red lever switch, designed for efficient and automated fluid flow management in industrial applications.

How Does a Motorized Ball Valve Work?

• When the actuator receives a signal (from a thermostat, control panel, or PLC), it turns

the internal motor.

• The motor rotates the valve’s stem and ball inside the valve body.

• A 90° turn opens or closes the flow path.

• Depending on the actuator type, it may be on/off or modulating (variable position).

Smart motorized valves can also return to a default position (fail-safe) in the event of power

loss.

Key Components of a Motorized Ball Valve

• Valve Body: Brass, stainless steel, or plastic depending on the application.

• Ball & Seats: PTFE or other materials for sealing and chemical resistance.

• Electric Actuator: Enclosed unit with a motor, gears, limit switches, and controls.

• Wiring/Connections: Power supply and control signal (typically 24V, 120V, or 230V).

Enolgas USA provides preassembled motorized ball valves that are compact, reliable, and

available in various voltages and control types.

Key components of a motorized ball valve illustrating the electric actuator, valve body, ball, ball seat, and wiring connections for efficient flow control.

Applications of Motorized Ball Valves

Motorized ball valves are used in a wide range of systems, including:

HVAC Systems

• Chilled and hot water control

• Zone control in hydronic heating

• Cooling tower bypass

A rooftop view showcasing an array of industrial air conditioning units, highlighting the significant infrastructure needed to manage climate control in large buildings.

Plumbing & Water Systems

• Automated irrigation

• Water treatment

• Leak detection systems

A plumber skillfully uses a wrench and screwdriver to adjust complex piping under a sink, ensuring proper maintenance and functionality.

Industrial Automation

• Process control

• Chemical dosing

• Compressed air or gas shutoff

Robotic arms efficiently assemble products on an automated production line in a modern manufacturing facility.

Anywhere you need reliable, automated fluid control, a motorized ball valve is likely a great

fit.

Types of Motorized Ball Valves

2-Way Motorized Valve

• Most common type

• Simple open/close function

• Ideal for flow shutoff or isolation

Precision-engineered brass ball valve with a yellow handle, designed for efficient flow control in plumbing systems.

3-Way Motorized Valve

• Used to divert flow between two outlets

• Great for mixing or diverting applications

Three-way motorized valve designed for efficient fluid control in industrial applications, featuring durable stainless steel construction and an automated actuator for precise operation.

Modulating Motorized Valves

• Allows variable positioning (not just open/closed)

• Controlled via analog signal (0-10V or 4-20mA)

• Used in precise flow or temperature control

Enolgas USA offers both on/off and modulating electric valves, suitable for residential,

commercial, and industrial environments.

Benefits of Motorized Ball Valves

• Automation-ready: Integrates with smart systems and BMS

• Energy-efficient: Opens and closes only when needed

• Low maintenance: Fewer moving parts compared to solenoid valves

• High reliability: Excellent sealing and long cycle life

• Safe operation: Fail-safe options available

Why Choose Enolgas USA Motorized Ball Valves?

At Enolgas USA, we manufacture and distribute high-performance electric ball valves

designed for demanding HVAC, plumbing, and industrial applications. Here’s why professionals trust our valves:

•Compact actuator design

•Available in multiple voltages (24V, 110V, 230V)

•High cycle life with durable construction

•Full port valves for minimal pressure drop

•RoHS and CE compliant options

•Available in 2-way and 3-way configurations

Getting Started with Motorized Ball Valves

If you're planning a new project or upgrading an existing system, the first step is choosing the right valve size, control type, and voltage.

Our team at Enolgas USA is here to help you select the best product for your needs.

Visit us at ww.enolgasusa.com

Email us at sales@enolgasusa.com or give us a call at 754-205-7903