The X107 position indicator stem is designed to provide direct indication of the diaphragm / inner valve position. The indicator stem moves up and down within its protective hexagonal brass housing. Within the housing is clear Pyrex sight glass, which allows viewing from both sides.
Singer main control valves are designed with a separate stem cap that makes installation of the X107 safe and simple to do in the field.
Select Singer main valve specifications from the main valve section and incorporate the following addendum:
For more information on the X107 main options valve: