The handwheel is furnished with a spring loaded ball detent which prevents vibration from changing the setting.
Control valve travel stop.
A travel stop in control valve is used as a mechanical limiter for stem travel.
Pneumatically stroke the actuator several times to assure proper operation.
If the actuator is equipped with an.
In fact these travels stops are used to limit the stem travel at certain travel whether limited to travel in the up direction or down direction.
They are used to limit travel in the up down or up and down.
Bolt the actuator to the bracket.
In any other position valve travel will be restricted.
This restriction usually comes because of the capacity limitation in the downstream of the control valve.
It might be possible to assemble the valve in such a way that the mechanism at full travel never quite closes the valve avoiding the need for an add on mechanical stop.
If you have any questions or need further assistance please contac.
Adjust the travel stop bolts of the actuator for the proper open and closed valve positions per valve manufacturer s recommendations.
A travel stop in the control valve is used as a mechanical limiter for stem travel.
This video shows you how to adjust the travel stop on an already assembled marwin valve.
Adjustable travel stops top mounted adjustable travel stops are available for 657 and 667 series actuators.
In fact these travel stops are used to limit the stem travel at certain travel whether limited to travel in the up direction or down direction.