VALBIA Motorized Ball Valve is an automatic ball valve designed for on/off and flow control applications in industrial piping systems. The product is configured with a Carbon Steel Full Bore Ball Valve, Wafer Type design, PN16 pressure rating, and can be combined with an actuator to automate valve operation.

The valve is available in sizes from DN15 to DN200. The VALBIA Series 82/85 actuator configurations, in which the actuator presented in the current documentation is a pneumatic actuator.

1. Overview of the VALBIA Electric Actuated Ball Valve

1.1. What is an Electric Actuated Ball Valve?

An Electric Actuated Ball Valve, or Motorized Ball Valve, is a combination of a Ball Valve and an Electric Actuator, allowing the valve to automatically perform opening and closing operations through control signals.

Unlike a manually operated ball valve, the operator does not need to directly operate a lever or handwheel. The Actuator receives a control signal from an electrical or automation system and generates torque to rotate the Ball inside the Valve Body to the required position.

For a Full Bore Ball Valve, when the valve is fully open, the bore of the Ball is aligned with the pipeline, providing a relatively direct flow path through the valve.

Motorized Ball Valves are commonly selected for systems requiring:

• Automatic opening and closing operation.
• Remote valve control.
• Integration with PLC or centralized control systems.
• Reduced manual operation.
• Improved control of piping lines.
• Opening and closing according to the operating sequence of the process.

1.2. Introduction to the VALBIA Brand

VALBIA is the brand shown directly on the supplied technical documentation and actuator. The documentation shows Series 82 and Series 85 actuator configurations, together with torque, operating time, air consumption and dimensional data.

In the supplied documentation, Series 85 is shown with the hazardous-area classification:

Ex II 2 G/D c T6

The documentation also shows the following configurations:

• DA – Double Acting
• SR – Spring Return

These specifications refer to the pneumatic actuators shown in the current documentation. If a specific Electric Actuator configuration is used with the Ball Valve, parameters such as voltage, power consumption, opening/closing time, IP rating and control signal must be determined from the corresponding Electric Actuator catalog.

1.3. Characteristics of the Carbon Steel Full Bore Ball Valve

The product is identified as a:

Carbon Steel Full Bore Ball Valve

Where:

• Carbon Steel: the Valve Body is made of carbon steel.
• Full Bore: the Ball is designed with a full-bore flow passage.
• Ball Valve: the main shut-off element is a rotating Ball.

The Full Bore design provides a relatively direct flow path when the valve is fully open. This configuration is suitable for many industrial piping systems requiring reliable on/off operation.

1.4. Wafer Type and PN16 Configuration

The valve is designed as a Wafer Type, helping to reduce installation space compared with certain longer-body or alternative connection configurations.

The valve has a pressure rating of:

PN16

For systems using flanged connections, the valve flange standard must be compatible with the piping, gasket and associated components.

The selection of PN16 must also be checked against the actual operating temperature and operating conditions rather than being based only on the nominal pressure rating.

2. Construction of the VALBIA Motorized Ball Valve

A Motorized Ball Valve basically consists of two main sections:

1. Ball Valve
2. Actuator

The Ball Valve performs the fluid-control function, while the Actuator provides the movement required to operate the Ball Valve.

2.1. Carbon Steel Ball Valve Body

The Valve Body is the main component containing the Ball, Stem, Seat and sealing components.

For the product described, the Valve Body material is:

Carbon Steel

Carbon steel is widely used for industrial piping systems due to its suitable mechanical properties for many applications.

However, when selecting the Valve Body material, the following factors should be considered together:

• Fluid type.
• Operating temperature.
• Operating pressure.
• Corrosion conditions.
• Surrounding environment.
• Required service life.

2.2. Full Bore Ball

The Ball is the component that directly performs the opening and closing function.

When fully open, the Ball bore is aligned with the pipeline. When the valve moves to the closed position, the Ball rotates approximately 90° to place the solid section of the Ball across the flow path.

The Full Bore configuration helps minimize flow-area restriction caused by the Ball design when the valve is fully open.

This is an important feature when selecting a valve for systems requiring a favorable flow path and a configuration compatible with the pipeline.

2.3. Stem and Drive Mechanism

The Stem connects the Ball to the actuator mechanism.

When the Actuator generates torque, the movement is transmitted through the Stem to the Ball, causing the Ball to rotate to the required operating position:

• Fully Open.
• Fully Closed.

For automatic systems, the ability to transmit sufficient torque from the Actuator to the Stem is an important factor in ensuring reliable Ball Valve operation.

2.4. Seat and Sealing Components

The Seat is positioned between the Ball and Valve Body and supports the sealing function when the valve is in the closed position.

Other sealing components help minimize leakage at:

• The Stem area.
• Connections between Valve Body components.
• The Ball and Seat interface.

The specific Seat and sealing materials must be determined according to the actual product configuration and operating medium.

2.5. Electric Actuator

For an Electric Actuated Ball Valve, the Electric Actuator is the component that generates torque to rotate the Ball.

The basic operating sequence can be described as:

Electrical Signal → Electric Actuator → Stem → Ball → Open/Close

The Electric Actuator can be integrated into the control system to perform automatic opening and closing operations.

However, the technical images currently provided do not show specific Electric Actuator parameters. Therefore, specifications such as:

• Voltage.
• Power consumption.
• Protection rating.
• Opening/closing time.
• Control signal.
• Torque.

must be confirmed according to the actual selected Electric Actuator model.

2.6. Actuator-to-Ball Valve Connection Mechanism

The Actuator is mounted on the Ball Valve through a suitable mounting mechanism.

The purpose of this mechanism is to:

• Position the Actuator.
• Transmit torque.
• Ensure accurate movement between the Actuator and Stem.
• Maintain stability during operation.

The Actuator must be selected with an output torque suitable for the required torque of the Ball Valve.

3. Operating Principle of the Electric Actuated Ball Valve

3.1. Opening and Closing Principle Using an Electric Actuator

When receiving a control signal, the Electric Actuator generates rotational movement.

This movement is transmitted through the Stem to the Ball. The Ball then rotates to the position corresponding to the required operating state.

The operating principle can be described as:

Control Signal → Actuator → Rotational Torque → Stem → Ball

When the Ball rotates to the open position, the fluid can pass through the valve.

When the Ball rotates to the closed position, the fluid flow is shut off.

3.2. 90° Rotation of the Ball Valve

A Ball Valve uses rotary movement. In a typical on/off configuration, the Ball rotates approximately 90° between the two operating positions:

0° → Open

90° → Closed

This makes the Ball Valve suitable for combination with quarter-turn actuators.

3.3. Open/Close Control

In an automatic on/off application, the Actuator can be controlled to move the valve to:

• Open
• Closed

The valve status can then be incorporated into the control sequence of the system.

For example:

PLC → Control Signal → Actuator → Valve Open

or:

PLC → Control Signal → Actuator → Valve Closed

The specific control-signal method depends on the actual Electric Actuator model.

3.4. Role of the Actuator in System Automation

The Actuator transforms the Ball Valve from a manually operated device into an actuator capable of participating in an automated control system.

In an industrial system, the valve can be controlled according to:

• Equipment status.
• Sensor signals.
• PLC sequence.
• Safety conditions.
• Process operating requirements.

Therefore, proper Actuator selection is as important as proper Valve Body selection.

4. Key Features of the VALBIA Ball Valve

4.1. Full Bore – Full Flow Passage

The Full Bore design provides a large and continuous flow passage through the Ball Valve when fully open.

This feature is suitable for systems requiring minimized flow restriction when the valve is in the Fully Open position.

4.2. Wafer Type – Compact Design

The Wafer Type configuration allows the valve to be installed between two pipe flanges.

This design provides:

• Space saving.
• Reduced installation length.
• Compatibility with many industrial piping systems.
• Convenient arrangement within equipment assemblies.

During installation, the valve dimensions and flange standards must be confirmed to match the piping system.

4.3. Carbon Steel Body

The Carbon Steel Body provides a suitable mechanical foundation for many industrial piping systems.

However, suitability for each specific application must be evaluated based on material compatibility and actual operating conditions.

For fluids with high corrosivity, the Valve Body, Ball, Seat and other wetted components should be carefully checked before selection.

4.4. PN16 Connection Rating

The PN16 pressure rating is an important parameter when selecting the valve.

The system designer should ensure:

Operating Pressure ≤ Allowable Pressure

while also considering the effect of temperature on the allowable pressure of the valve.

The valve should not be selected based solely on the PN16 value without considering the actual operating temperature.

4.5. Automatic Operation with an Electric Actuator

Combining the Ball Valve with an Electric Actuator allows the opening and closing process to be automated.

Compared with manual operation, an actuator-based system can support:

• Remote control.
• Programmed operation.
• PLC integration.
• Reduced manual operation.
• Synchronization with other automatic equipment.

4.6. Integration into the Control System

The Motorized Ball Valve can be used as an actuating element within an automation system.

Depending on the Actuator configuration, the valve can be controlled from:

• Local control.
• Control panel.
• PLC.
• Factory automation system.

The specific communication and control signals must be confirmed according to the actual actuator model.

5. Technical Specifications and Selection Range

5.1. Nominal Diameter – DN15 to DN200

According to the data shown in the image, the product is available in the following sizes:

DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150 and DN200.

This wide size range allows the product to be selected for piping systems of different capacities.

5.2. Pressure Rating – PN16

The product is specified with:

Pressure Rating: PN16

For each application, the following must be checked:

• Maximum operating pressure.
• Operating temperature.
• Fluid type.
• Pressure-temperature relationship.

This ensures that the valve is suitable for the actual operating conditions.

5.3. Valve Type – Full Bore Ball Valve

Product information:

5.4. Connection – Wafer Type / Flanged Ends

The valve is designed in a Wafer Type configuration with a flange connection system suitable for PN16 service.

During selection, the following must be checked:

• Flange standard.
• Flange dimensions.
• Bolt pattern.
• Gasket compatibility.
• Pipe alignment.

These parameters should be confirmed from the technical drawing corresponding to the specific model.

5.5. Valve Body Material

The Valve Body material is specified as:

Carbon Steel

The use of Carbon Steel must be evaluated together with the process medium and operating conditions.

Particular attention should be paid when the valve is used with:

• Chemicals.
• Corrosive fluids.
• Acid/alkali.
• High-temperature fluids.
• Fluids containing aggressive components.

5.6. Size Range and Actuator Configurations

The supplied documentation shows Ball Valve sizes from DN15 to DN200.

The pneumatic actuator table, shows actuator configurations according to valve size:

Double Acting – Series 82

6. Actuator Configurations and Selection

6.1. Electric Actuator

For the Electric Actuated Ball Valve version, the Electric Actuator generates the torque required to operate the Ball.

Actuator selection must be based on the required Ball Valve torque, operating conditions and system control method.

The following parameters should be determined during actuator selection:

• Required torque.
• Voltage.
• Control mode.
• Operating time.
• Duty cycle.
• Protection rating.
• Environmental conditions.
• Feedback signal.

Because the current images do not provide a technical table for the Electric Actuator, specific values should be confirmed from the corresponding Electric Actuator catalog.

6.2. Comparison Between Electric Actuator and Pneumatic Actuator

In the supplied VALBIA documentation, Series 82/85 actuators are pneumatic actuators, with torque tables based on air supply pressures from 2.5 to 8 bar.

Therefore, if the actual product is an Electric Actuated Ball Valve, the corresponding Electric Actuator torque table must be used for technical selection.

6.3. When Should an Electric Actuator Be Used?

An Electric Actuator is suitable when the system:

• Has an available electrical power supply.
• Requires remote valve control.
• Uses a PLC or control panel.
• Does not have a centralized compressed-air system.
• Requires automation of multiple valves within the same system.
• Requires sequence-based control.

6.4. Selecting the Actuator According to Valve Size and Torque

The Actuator should not be selected based solely on DN.

The critical parameter is the required torque of the Ball Valve.

The selection principle is:

Actuator Output Torque ≥ Valve Required Torque

In addition, the following factors should be considered:

• Differential pressure.
• Seat type.
• Fluid type.
• Opening/closing frequency.
• Temperature.
• Environmental conditions.
• Safety factor.

Selecting an actuator with insufficient torque may prevent the valve from fully opening or closing, while an excessively oversized actuator can increase cost without providing a necessary benefit.

7. Applications of the VALBIA Motorized Ball Valve

7.1. Water Supply and Distribution Systems

The automatic Ball Valve can be used in water supply and distribution lines requiring remote opening and closing operation.

Examples include:

• Water supply.
• Industrial water.
• Utility water.
• Process water.
• Distribution lines.

7.2. HVAC Systems

Motorized Ball Valves can be used in HVAC systems to control fluid flow in:

• Chilled water.
• Cooling water.
• Heating water.
• Utility piping.

However, Seat materials and other wetted components must be checked for compatibility with the operating temperature and service conditions.

7.3. Water Treatment Systems

In water treatment systems, automatic valves are commonly used to perform opening and closing operations according to the process sequence.

Potential installation points include:

• Raw water.
• Process water.
• Treated water.
• Utility lines.
• Backwash-related piping.

Material selection should be based on the actual water quality and chemicals present in the system.

7.4. Industrial Systems

With its Carbon Steel Full Bore Ball Valve configuration, the product can be considered for a wide range of industrial piping systems.

Actual application suitability depends on:

• Fluid compatibility.
• Pressure.
• Temperature.
• Flow rate.
• Corrosion conditions.
• Valve materials.

7.5. Piping Systems Requiring Automatic Opening and Closing

This is one of the primary applications of a Motorized Ball Valve.

Instead of manually operating individual valves, the valves can be connected to a centralized control system.

For example:

PLC → Electric Actuator → Ball Valve

When the system issues a command, the Actuator performs the required operation and moves the Ball Valve to the specified position.

8. Selection Guide for the Electric Actuated Ball Valve

8.1. Determine the DN

First, determine the pipeline size and required flow rate.

The DN should not be selected solely based on pipe diameter. Flow rate, flow velocity and system pressure conditions should also be considered.

The VALBIA Ball Valve shown in the supplied documentation covers:

DN15–DN200

8.2. Determine the Pressure Rating

The product is specified as:

PN16

The designer should compare this pressure rating with the actual operating pressure and consider the effect of temperature.

8.3. Check the Material

For a Carbon Steel Body, material compatibility with the process medium must be verified.

Particular attention should be paid when the valve is used with:

• Chemicals.
• Corrosive fluids.
• Acids/alkalis.
• High-temperature fluids.
• Fluids containing aggressive components.

Valve suitability should not be determined from the Body material alone; the Seat, Ball, Stem and sealing materials should also be checked.

8.4. Determine the Connection Type

For the Wafer Type configuration, compatibility must be checked between:

• Valve.
• Pipe flange.
• Gasket.
• Bolts.
• Installation space.

Proper pipe alignment before tightening the bolts is also important to prevent unnecessary stress on the Valve Body.

8.5. Determine the Required Torque

This is an important step in Actuator selection.

The following must be determined:

Required Valve Torque

Then an actuator with a suitable output torque and appropriate allowance for operating conditions should be selected.

For the VALBIA pneumatic actuator documentation supplied, the torque table provides values according to the spring set and air supply pressure. For an Electric Actuator, the dedicated torque table for the electric actuator must be used.

8.6. Select the Appropriate Electric Actuator

After determining the required torque, the Actuator should be selected based on:

• Rated torque.
• Power supply.
• Control signal.
• Operating time.
• Installation environment.
• IP protection.
• Feedback requirements.

If the valve is controlled by a PLC, compatibility between the PLC output signal and the Actuator input signal must be verified.

9. Installation and Operation Considerations

9.1. Check the Piping Before Installation

Before installing the valve, check that:

• The pipeline has been cleaned.
• No foreign objects remain inside the pipeline.
• The two flanges are properly aligned.
• The dimensions are compatible.
• Excessive mechanical stress is not applied to the valve.

The Ball Valve should not be used to force or pull two pipe ends into alignment.

9.2. Check the Installation Direction and Position

The Ball Valve must be installed according to the direction and configuration permitted by the manufacturer.

The following should also be ensured:

• Sufficient space for the Actuator.
• Access for maintenance.
• No obstruction from surrounding equipment.
• The Actuator is not exposed to heat sources exceeding its allowable limits.

9.3. Check the Valve–Actuator Connection

After installing the Actuator, check:

• Mechanical coupling.
• Stem alignment.
• Actuator mounting.
• Torque transmission.
• Open/Close position.

If the coupling is not properly aligned, the Actuator may operate while the Ball does not reach the required fully open or fully closed position.

9.4. Check the Power Supply and Control Signal

For the Electric Actuator version, the following should be checked before operation:

• Supply voltage.
• Wiring.
• Control signal.
• Grounding.
• Feedback signal, if applicable.
• Open/Close command.

Electrical specifications must be checked directly against the Actuator nameplate and corresponding catalog.

9.5. Check Open/Close Operation

After installation, an unloaded test or commissioning procedure should be performed according to the system requirements.

Check the following:

1. Send the Open command.
2. Observe the Actuator.
3. Verify that the Ball reaches the open position.
4. Send the Close command.
5. Verify that the Ball reaches the closed position.
6. Check the feedback signal, if applicable.
7. Check for leakage after commissioning the system.

9.6. Periodic Maintenance

Maintenance should cover both the Ball Valve and the Actuator.

Recommended inspection items include:

• External leakage.
• Valve operation.
• Stem condition.
• Seat condition.
• Bolt condition.
• Actuator mounting.
• Electrical connections.
• Control signal.
• Abnormal noise.
• Abnormal vibration.

If the valve becomes difficult to operate, operates slowly, or the Actuator cannot move the valve to the required position, the cause should be investigated before continuing operation.

10. Conclusion

The VALBIA Electric Actuated Ball Valve – Carbon Steel Full Bore Ball Valve, Wafer Type, PN16 is a valve configuration designed for fluid on/off control and automated operation in piping systems.

The product features a Carbon Steel Body, Full Bore design, Wafer Type configuration and PN16 pressure rating, with the supplied documentation showing a size range from DN15 to DN200. When combined with a suitable Actuator, the Ball Valve can be integrated into a control system to perform opening and closing operations according to the requirements of the process.

For proper selection of a VALBIA Motorized Ball Valve, it is necessary to consider not only DN and PN, but also the fluid, temperature, pressure, materials, Seat, required torque and Actuator specifications.

In particular, the current technical documentation provides detailed information on the VALBIA Series 82/85 Pneumatic Actuators, but does not provide a detailed specification table for the Electric Actuator. Therefore, parameters such as voltage, power consumption, opening/closing time, IP rating and control signals must be confirmed according to the specific Electric Actuator model before being included in technical documentation or quotations.

With the appropriate configuration, the VALBIA Motorized Ball Valve can serve as an important actuating element in water treatment, HVAC, industrial piping, utility systems and process lines requiring automated valve opening and closing.