Configurable automatic or manual-actuated process ball valve
Mike Edwards
Products ATEX ball valve EX certification festo gas KV2B quarter turn
The configurable ball valve unit KV2B from Festo can be actuated automatically a pneumatic quarter turn actuator, or manually using a hand lever.
EX certification of II 2GD provides ATEX category for gas II 2G, type of ignition protection for gas c T6 … T3 X, ATEX category for dust II 2D, type of ignition protection for dust c T80 °C … T200 °C X, and explosion-proof ambient temperature rating 0°C ≤ Ta ≤60°C.
In controlled mode, the required position of the process valve is specified via an analog positioning signal, e.g., 4 to 20 mA, while in the open/closed mode, the process valve is moved into both end positions.
A position indicator allows that the actual end position of the process valve unit can be transmitted either visually, directly on the process valve or via an electrical signal.
The pneumatic pilot valve is mounted directly on the quarter turn actuator via the NAMUR interface.
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