Type YT-1000R Electro-pneumatic valve positioner is used for operation of pneumatic rotary valve actuators by means of electrical controller or control system with an analog output signal of DC 4 to 20 mA or split Ranges.
Principle of YT1000R electro pneumatic positioner
(1) Rotary valve positioner/YT1000 rotary valve positioner is used for regulating valve with large diameter (Dg>100mm) to increase the output thrust of the actuator.
(2) When the distance between the regulator and the actuator is more than 60m, the YT1000 rotary valve positioner can overcome the transmission lag of the control signal and improve the response speed of the valve.
(3) Electro pneumatic positioner is used to improve the flow characteristics of the regulating valve.
(4) When one regulator controls two actuators to implement split-range control, two valve positioners can be used to accept low input signals and high input signals respectively, and then one actuator will act in low range and the other in high range, which constitutes a split range.
The YT1000R positioner receives 4-20mA weak current signals from the controller or control system, and sends air signals to the pneumatic actuator for control Valve position device.
YT1000R positioner is used in conjunction with a pneumatic control valve to form a closed loop control loop. The direct current signal given by the control system is converted into a gas signal for driving the regulating valve to control the action of the regulating valve. At the same time, feedback is performed according to the opening of the regulating valve, so that the valve position can be correctly positioned according to the control signal output by the system.
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Add: EAA Central Industrial Zone,Wenzhou,Zhejiang Province,China