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 conformity | ATEX/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 detection | Magnetoresistive proximity switches | |
| Housing material | PA 12/L | |
| Air supply | Pressure range | 2 to 8 bar |
| Standard | acc. to ISO 8573-1:2010 | |
| Solid content | Quality class 6 | |
| Water content | Quality class 4 | |
| Oil content | Quality class 3 | |
| Dimensions of air connections | Metric 6/4 mm, inch 6.35/4.31 mm (¼") | |
| Protection class | IP 69 | |
| Sound pressure level
via exhaust air throttle | Max. 72 dB | |
| Visualization | LED (green, yellow) | |
| Certificates | ATEX, IECEx, UKEx, CCCEx | |
Valve and plant automation
Downloads
Prodotti correlati
Modulo di controllo T.VIS® A-15
Dotato di sistema di misurazione della corsa ad alta precisione, T.VIS® A-15 offre il riconoscimento automatico della posizione di apertura/chiusura di qualsiasi valvola GEA che può essere dotata di un modulo di controllo T.VIS®.
Modulo di controllo T.VIS® M-20
Il modulo di controllo GEA T.VIS® M-20 offre l'intera gamma delle attuali funzioni di controllo richieste nella maggior parte delle applicazioni, più ulteriori vantaggi in termini di messa in funzione automatizzata delle valvole e di gestione efficiente delle attrezzature.
Modulo di controllo T.VIS® P-15, controllore di posizione
T.VIS® P-15 è un controllore di posizione compatto per le valvole di processo pneumatiche. La posizione viene rilevata da un sensore di posizione e regolata da due elettrovalvole integrate.
Supporti di interruttori di prossimità
Raccordo 0, INA, LAT
Approfondimenti GEA
In for the better: Community engagement at GEA
To support community engagement, GEA offers employees one day of paid time off per year.
How a digital rotary parlor supports sustainable dairy farming
How do you lead a dairy farm into the next generation while ensuring a sustainable future and animal welfare while managing increasing complexity? This is a question almost every dairy farmer around the world must consider. The...
A strategy for the better: CEO interview on GEA's Mission 30
After reaching its Mission 26 targets two years early, GEA launches Mission 2030 strategy with focus on growth, value and making a positive impact.
