Description about Donjoy Valve aiti-explosion Valve Control Head IL-TOP-1891:
Donjoy Valve aiti-explosion Valve Control Head IL-TOP-1891 is an Anti-explosion valve positioners are devices used to control the position of a valve and prevent it from opening or closing too quickly. They are typically used in explosive or hazardous environments, such as chemical plants or oil refineries, to prevent explosions or fires. The positioner sends a signal to the valve actuator, which adjusts the valve position based on the input signal. This ensures that the valve operates smoothly and avoids sudden changes in flow or pressure that could trigger an explosion. Anti-explosion valve positioners are an important safety measure in industries where explosive or hazardous materials are present.
Functions:
Control input: 4-20mA
Feedback output : 4-20mA
Power supply : 4-20mA
Bus communication: HART 6/7
Accuracy: Repeat positioning accuracy ≤ 0.2%;
Menu: OLED display Chinese & English
Setting: One-button auto-tuning function
Operating mode: manual / automatic
Fault: gas cut, power off, automatic valve position reset (standard) valve position hold function (optional)
Stroke angle: 0-180°
Explosion-proof grade: EX IDII CT6
