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Unlocking Efficiency with the Electro-pneumatic Positioner: Enhance Your Pneumatic Cement Unloader Today!

Discover how the Serie 6A Electro-pneumatic Positioner enhances precision, efficiency, and safety in pneumatic cement unloaders like Kovako and Kintec. Upgrade today at Lion Technology!

When operating pneumatic cement unloaders like the Kovako and Kintec models, achieving precise and reliable control over the butterfly valve is crucial because it directly impacts the efficiency and safety of material handling. Precise control ensures consistent flow rates, minimises material waste and prevents potential blockages or overflows. Reliable valve operation also reduces wear and tear on system components, extending their lifespan and reducing maintenance costs. One of the most impactful upgrades you can make to your system is integrating an electro-pneumatic positioner, such as the Serie 6A available at LionTech.shop. But what makes this positioner a game-changer compared to traditional pneumatic actuators with mechanical activators controlled by the PLC? Let’s explore the advantages and the practical benefits it brings to your pneumatic unloading system.

Electropneumatic positioner - Serie 6A - G1/4 For pneumatic linear and part-turn actuators - Polycarbonate - Fail safe


Electropneumatic positioner Serie 6A for use with pneumatic linear/part-turn actuators. Polycarbonate housing, G¼ connection & M20x1.5 bolt size. Analog 4-20mA, fail safe feature & secure fit for a variety of applications.

The Basics: Pneumatic vs. Electro-pneumatic Valve Control

Traditional Pneumatic Actuator with Mechanical Activator

In traditional systems, butterfly valve control relies on a pneumatic actuator combined with a mechanical activator. This setup uses a mechanical potentiometer to provide feedback, which is then managed pneumatically by two separate blocks under PLC control. The PLC continuously adjusts the valve position between 0° and 90°, striving to maintain the required balance.

While this method works, it is prone to:

Modern Control with Electro-pneumatic Positioner

Enter the Serie 6A Electro-pneumatic Positioner, which brings valve control directly to the actuator. Instead of relying on external balancing, this system integrates:

Valve Actuators and Operators

Actuator / 119.0 DD / F07/F12 30mm

Actuator / 119.0 DD / F07/F12 30mm

Serie 92 / Rack and pinion pneumatic actuator / Dubble acting

€401.45
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Actuator / 093.0 DD / F07 19mm

Actuator / 093.0 DD / F07 19mm

Serie 92 / Rack and pinion pneumatic actuator / Dubble acting

€232.15
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Manual operator / DN50 to 80 / Serie 01

Manual operator / DN50 to 80 / Serie 01

Quarter turn lever / SS / EDI

€48.18
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Actuator / 063.0 DD / F07 14 mm

Actuator / 063.0 DD / F07 14 mm

Serie 92 / Rack and pinion pneumatic actuator / Dubble acting

€136.75
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Actuator / 128.0 DD / F07/F12 30 mm

Actuator / 128.0 DD / F07/F12 30 mm

Serie 92 / Rack and pinion pneumatic actuator / Dubble acting

€380.55
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Actuator / 160.0 DD / F12 30mm

Actuator / 160.0 DD / F12 30mm

Serie 92 / Rack and pinion pneumatic actuator / Dubble acting

€587.25
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Key Benefits of the Electro-pneumatic Positioner

  1. Enhanced Precision The Electro-pneumatic positioner delivers fixed positioning per degree, ensuring unparalleled accuracy. Whether your valve needs to open at 25° or 75°, the positioner executes with exacting precision.
  2. Improved Efficiency Faster response times and reduced variability mean your unloading process runs more smoothly, minimizing delays and optimizing productivity.
  3. Fail-Safe Reliability The integrated fail-safe functionality offers peace of mind. Even if auxiliary power is lost, your system will default to a safe state, protecting both your equipment and personnel.
  4. Durability and Compatibility Constructed with a robust polycarbonate housing and equipped with a threaded G¼ connection (M20x1.5 bolt size), the Serie 6A positioner is built to withstand challenging industrial environments. It’s compatible with pneumatic linear and part-turn actuators, making it versatile for various applications.

Practical Applications in Pneumatic Cement Unloaders

Butterfly valves play a critical role in controlling the flow of materials in pneumatic unloaders. Upgrading to an electro-pneumatic positioner is especially beneficial for:

Essential Components for the Upgrade

To fully leverage the benefits of an electro-pneumatic positioner, you will only need two additional components and some programming work from our engineers:

Feedback module - IY module Plug-in module for analog current output signal for electropneumatic positioner


Robust and reliable Feedback module for electropneumatic positioners with 4-20mA DC output and eexib explosion protection for added safety. Easy to install and highly accurate.

Conclusion: A Smart Investment for Your Unloader

Upgrading to an electro-pneumatic positioner like the Serie 6A is a smart move for anyone looking to improve the efficiency, reliability, and safety of their pneumatic cement unloader. By replacing traditional pneumatic systems with this advanced solution, you’ll unlock many benefits that translate directly into better performance and lower operational costs.

Explore the Serie 6A Electro-pneumatic Positioner and other compatible components at LionTech.shop and take your unloading system to the next level today.

Please feel free to reach out to us for any questions or remarks you might have regarding your valve operations. 

1. What is an Electro-pneumatic positioner?

An Electro-pneumatic positioner is a device that precisely controls the position of a valve in response to a signal from a PLC. It enhances accuracy and reliability compared to traditional pneumatic-only systems.

2. Why is precise valve control important in pneumatic cement unloaders?

Precise valve control ensures consistent material flow, prevents blockages, reduces waste, and enhances the overall efficiency and safety of the unloading process.

3. How does the Serie 6A positioner handle power failures?

The Serie 6A is equipped with a fail-safe feature that moves the valve to a predefined safety position and depressurizes the actuator if electrical power is lost, protecting both equipment and personnel.

4. What additional components are needed for upgrading to an Electro-pneumatic system?

You only need a feedback module and the Serie 6A Electro-pneumatic positioner, along with some programming work by your engineers.

5. Where can I purchase the Serie 6A positioner and related components?

You can find the Serie 6A positioner, feedback module, and other compatible parts at LionTech.shop.    

Butterfly Valves

Butterfly valve / DN125 / PN10/16

Butterfly valve / DN125 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€131.44
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Butterfly valve / DN100 / PN10/16

Butterfly valve / DN100 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€98.59
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Butterfly valve / DN50 / PN10/16

Butterfly valve / DN50 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€60.42
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Butterfly valve / DN65 / PN10/16

Butterfly valve / DN65 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€69.97
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Butterfly valve / DN80 / PN10/16

Butterfly valve / DN80 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€78.44
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Butterfly valve / DN150 / PN10/16

Butterfly valve / DN150 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€146.28
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Butterfly valve / DN200 / PN10/16

Butterfly valve / DN200 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€235.32
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Butterfly valve / DN250 / PN10/16

Butterfly valve / DN250 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer

€346.62
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Butterfly valve / DN250 / PN10/16

Butterfly valve / DN250 / PN10/16

ANSI 150# / EPDM / Serie 30 / Resilient seated / Wafer / UC

€378.51
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