Installation, Operation and Maintenance Manual
Diaphragm Valve Type 15 Electric Actuated Type H 125, 150mm
16
14)
Check to ensure that travel indicator shows correct position of
fully open or close.
*When the travel indicator shows incorrect position, loosen and
remove the cover of the actuator with an Allen wrench, and loosen
the travel indicator with a screwdriver (+) to indicate the full open
position or the full closed position, then repeat 10) to 12)
(13) Inspection items
- Perform periodic maintenance. (Leakage may develop due to temperature changes or over periods of
prolonged storage, rest or operation.)
Portion to be inspected Inspection
item
Actuator
- Existence of rust, peeling of paint, and dirt of inspection hole of valve travel indicator.
- Tightening condition of respective threaded portions. (Loose or not)
- Existence of rust and corrosion around the limit switch, and existence of internal
disconnection.
- Existence of rust and corrosion of terminal board, and existence of disconnection.
- Existence of abnormality in opening and closing operating sounds.
*It is unnecessary to supply oil to this actuator.
Valve
- Existence of scratches, cracks, deformation, and discoloring.
- Existence of leakage from the valve to the outside.
- Existence of leakage when the valve is closed fully at right or left.
- Tightening condition of bolt (A) (loose or not.)
Caution
