Novel pneumatic three-way controller
A controller and three-way technology, applied to multi-way valves, engine components, valve details, etc., can solve the problems of product connection pipe leakage, large machine shape, and complicated debugging, so as to ensure sealing performance and low manufacturing cost , the effect of wide pressure regulation range
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[0025] Example 1:
[0026] Such as figure 2 , 3 As shown, the present invention provides a new type of pneumatic three-way control that can flexibly set the air source pressure failure value according to site requirements, automatically monitor the air source pressure, and automatically reset the pneumatic instrument or run to the fully open / closed position according to the control requirements. To replace the traditional control scheme that uses a combination of two pneumatic components. When the input pressure of the SIG port of the new pneumatic three-way controller is greater than the air source fault set value set by the pressure regulating spring 2, the controller's port A (first inlet) to C port (second outlet) is connected, and B Port (the first outlet) is not connected to port A and port C; when the input pressure of the controller's SIG port (signal port) is less than the set value of the air source fault, the controller's port A to port B is connected, and port C The...
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