4. ORDERING SYMBOLS
Electro-Pneumatic Positioner
YT-1000R
<NOTE>
•
Based on temperature 20℃, absolute pressure 760mmHG and relative humidity 65%.
•
Explosion Proof (ExdmIIBT6), IP66 as standard.
•
Double Acting as standard.
•
In standard
½
split range is available by adjusting the Span.
•
Contact us except standard.
5. STRUCTURE
Increase the input current signal to change
in lift position of valve. Force exerted by
①Torque Motor reduces Nozzle Back
Pressure with increase in gap between
between ②Flapper and ③Nozzle. Then
⑤Spool moves upward and the ⑦Seat opens
simultaneously. Air pressure of OUT1 pipe
is discharged to ⑩Actuator. As pressure
in the actuator chamber goes up, ⑫Actuator
stem start to rotate. The movement of
⑫Actuator stem exerted force to the
ⓐFeedback Spring through Feedback Shaft
connections. Then ⑩Actuator will stop at
the point of force balance exerted by the
input current signal and the feedback spring.
6. PRINCIPLE OF OPERATION
ЧП
Мельникова
http://kran.net.ua E-mail: [email protected]
