The valve position controller can be used with all kinds of regulating valve, used to display the upper and lower valve stroke. If the regulation and system or an accident protection system supporting the use, can realize mutual interlocking control system of valve. In the accident state, can display the position of control valve stroke. Therefore, the valve position controller is inching switch and pneumatic the itinerary change control valve to drive controller and a valve position signal output device letter.
Notes on using valve position controller are as follows:
A. valve position controller before use, to check the electrical components of the operating voltage, load current and explosion-proof requirements, see whether it meets the requirements.
Proof of the installation location, structure, wire B. check valve position controller connection.
C. products have been adjusted in the factory, the position limit was 100% ± 2.5%, 0% ± 2.5% letter position limit. If any deviation, adjustable controller cam, cam to tighten after adjustment. According to the actual needs of electric control valve, replacement of wiring and adjust the position of the cam, it can achieve more in the form of valve position display.
If D. is of explosion-proof structure, does not allow the valve on-site power adjustment.
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