040215
Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: (586) 268-1220 ・ fax: (586) 979-8315
Note: Information subject to change without notice.
Inside View
Principle of Operation
Increase the input current signal to change position of valve. Force exerted by ①Torque Motor reduces Nozzle Back Pressure
with increase in gap between ②Flapper and ③Nozzle. Then ⑤Spool moves upward and the ⑦Seat opens simultaneously. Air
pressure of OUT1 pipe is discharged to (10)Actuator. As pressure in the actuator chamber goes up, ⑫Actuator stem starts to
rotate. The movement of ⑫Actuator stem exerts force to the Feedback Spring through the Feedback Shaft connection. Then the
⑫Actuator will stop at the point of force balance exerted by the input current signal and the feedback spring
