Control and Feedback Systems

Control top T.VIS® E-20

The T.VIS® E-20 is the perfect control top to be used in explosive gas and dust atmospheres.

The T.VIS® E-20 is specially designed to meet the requirements of the liquid processing industry as well as dust explosion protection. In addition, all components of this control top are standardized to the utmost degree. This ensures the simplest and most time-saving handling with high reliability and safety. The technology of the T.VIS® E-20 is based on two separate, magnet-based sensors combined in one sensor module. They are used to detect the valve position and provide the corresponding feedback signals for automated plant operation. The sensor module also provides the optional connection for the pilot solenoid valves to control the valve actuators.

Features

  • Proven housing technology and standardization of component use
  • Highest protection class as standard
  • High vibration and shock resistance
  • Easy commissioning
  • 2-color 360° status identification
  • Certifications for worldwide use

Structure

The T.VIS® E-20 has 2 position sensors integrated in a compact module as standard. The LEDs, which are also integrated, enable status identification by means of the illuminated dome incorporated in the control top cap. The required cabling by the customer to the necessary operating equipment and therefore ensuring the intrinsically safe operation of the control top is achieved by direct wiring to internal spring-loaded terminals, both for the feedback signals and for the valve activations. The supply air connection is equipped with a replaceable filter to protect the built-in solenoid valves.

Position detection

Two manually adjustable sensors for detection of the valve positions for start/safety and end position.

Settings

The sensors are mounted on guide blocks and can be individually adjusted over the entire stroke of the valve via two threaded spindles integrated in the sensor module.

Visualization

LED display

  • green: valve in non-actuated position
  • yellow: valve in end position

Field of application

Approved for use in the following applications:

Type of conformityATEX/UKEX/IECEx/CCCEx
Application
Gas(II 2G) Ex ia IIC T4…T5 Gb
Ambient temperature-10 °C ≤ Ta ≤ +42 °C
Dust(II 2D) Ex tb IIIC T85 °C Db
Ambient temperature-10 °C ≤ Ta ≤ +38 °C

All certifications are based on use in gas and dust atmospheres, covering the requirements for equipment category 2 (EPL b).

Technical data

Technical data of the standard version
Position detectionMagnetoresistive proximity switches
Housing materialPA 12/L
Air supplyPressure range2 to 8 bar
Standardacc. to ISO 8573-1:2010
Solid contentQuality class 6
Water contentQuality class 4
Oil contentQuality class 3
Dimensions of air connectionsMetric 6/4 mm, inch 6.35/4.31 mm (¼")
Protection classIP 69
Sound pressure level
via exhaust air throttle
Max. 72 dB
VisualizationLED (green, yellow)
CertificatesATEX, IECEx, UKEx, CCCEx
GEA T.VIS E-20 for potentially explosive production environments

New GEA control top generation provides explosion protection for food producers

GEA completes the T.VIS® control top series with a version for potentially explosive processes, especially suitable for the dairy and liquid processing industry.

Valve and plant automation

The degree of automation in production systems in the food, dairy, pharma and beverage industries is ever on the rise. In the course of the fast digital development towards Industry 4.0 and Internet of Things, digital control tops are becoming indispensable components of future process plants.

GEA Insights

Next level dewatering for wastewater

Wastewater treatment plants are essential for our modern lives. But how can their operation be continuously advanced and improved? What has long been a challenge in terms of optimization has now been achieved: the automatic control...

Computer generated AI in shape of brain.

Brains of steel: AI drives sustainability for GEA and its customers

With modern sensor technologies, cloud connectivity and advanced analytics firmly in place, GEA is now adding a layer of intelligence to its hard-working machines. The results demonstrate the power of AI to take production processes...

GEA employees - separation

Separate from the rest

The story of the GEA centrifuge begins in 1893, when Franz Ramesohl and Franz Schmidt began production of their patented mechanical milk separator, paving the way for modern dairy processing. The innovation helped overcome a...

Receive news from GEA

Stay in touch with GEA innovations and stories by signing up for news from GEA.

Contact us

We are here to help! With just a few details we will be able to respond to your inquiry.