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Actuator
Bonnet
valve body
val body
spool/piston
handle
Actuator, Stem coupling, Valve body
1) Valve actuator - which moves the valve's modulating element, such as ball or butterfly.
2) Valve positioner - Which ensures the valve has reached the desired degree of opening. This overcomes the problems of friction and wear.
3) Valve body - in which the modulating element, a plug, globe, ball or butterfly, is contained.
1.ACTUATOR
2.BONET
3.BODY.
