Type YT-1000L Electro-pneumatic valve positioner is used for operation of pneumatic linear valve actuators by means of electrical controller or control system with an analog output signal of DC 4 to 20 mA or split Ranges.
Pneumatic control valves used to automatically and manually open and close various valves, wind panels, etc. use compressed air as the power source, cylinders as actuators, and with the help of electro pneumatic valve positioners, converters, solenoid valves, retaining valves and other accessories To drive the valve, realize the on-off or proportional adjustment, and receive the control signal of the industrial automation control system to adjust the flow, pressure, temperature and other process parameters of the pipeline medium.
Pneumatic control valve is characterized by simple control, fast response, and intrinsically safe, without additional explosion-proof measures. Features of Pneumatic Motor Pneumatic motor is a prime mover with compressed air as the working medium. It is a power device that uses the expansion of compressed gas to convert pressure energy into mechanical energy.
YTC positioner debugging problems
Linear electro pneumatic positioner is mounted
First, the air supply to the actuator, the control air pressure reducing valve by filtration, the valve stroke of the pointer finger on the scale 50%
Retainer mounting bracket
Mounting the retainer, so that the retainer ruler scale value corresponding to the valve stroke, the lever and the vertical stem
Installation filter regulator and tubing
Turning on air supply and a control signal
And zero adjustment of the positioner stroke
Positioner and actuator installation is accurate or not, taking into account the effect of the positioner is used, the same is to be installed at reasonable installation plate positioner associated with the actuator connected in the installation of the positioner Annex reasonable integrally connected.
1, the same first positioner together with the installation plate, by the upper case off the positioner, with three M5 * 20 screws with three holes through the shell plate are connected with the installation.
2, the positioner system connected to the actuator member, the adjustment nut on the valve stem force, will be charged to the system board member interposed between the pointer and the nut is connected.
3, with the installation of the positioner plate equipped with the actuator yoke has two screw holes by screws M10 * 15 good same desired orientation.
4, is connected to the cam pin into the positioner system of open channel on the dry webs of the system will be system components.
5, different types of actuators should ensure that when the valve position of 50%, a cam lever of the system should be a horizontal orientation.
6, the various parts of the installation connected to adjust the same tripod.
What is the difference between the positioner and actuator is
Positioner is the primary regulating valve attachment, and the air control valve movable zhi greatly supporting the use, it accepts the output signal of the regulator, and then to its output signal to control the pneumatic control valve, when the operation of the control valve, the displacement of the valve stem fed back to the positioner by mechanical means, valve position status by an electrical signal to the host system.
Positioner its structure and operation principle can be divided into pneumatic valve positioner, electro - pneumatic valve positioner and the smart valve controller.
The positioner is possible to increase the output power regulating valve, to reduce the transmission hysteresis adjusting signal, the movement speed of the valve stem, the valve can be improved linearity, to overcome friction and the valve stem eliminate unbalanced force, thus ensuring the regulation correct positioning of the valve.
Executing agency common pneumatic actuator, an electro pneumatic actuator, a straight stroke, rotary points. To automatically, manually actuable valve opening and closing various types of wind panels.
Contact: Vison Chan
Email: firstname.lastname@example.org , email@example.com
Add: EAA Central Industrial Zone,Wenzhou,Zhejiang Province,China