Installation, Operation and Maintenance Manual
Butterfly Valve Type 55Type 55IS Pneumatic Actuated Type TA
19
Manual Operating Procedure
Single action type
- Only for the actuator which is the manual operation with groove.
Spanner wrench
Procedure
1) Loosen the locking nut with spanner wrench.
2) Turn the round handle for manual operation 1-2 times
between full open and full close.
Rotational direction of
round handle
Air to open type
Air to close type
Clockwise
Shut
Open
C-Clockwise
Open
Shut
Manual operation unit
Nominal
size
50mm
(2”)
65, 80mm
(2 1/2”~3”)
100, 125mm
(4~5”)
150mm
(6”)
200mm
(8”)
250,300mm
(10”,12”)
350,400mm
(14”,16”)
Manual
operation
unit
About 24
About 25
About 28
About 28
About 36
About 38
About 40
3) Turn right the round handle to the full open or full close.
Do not turn the handle forcibly at full operating positions.
(If not, a trouble will develop.)
4) Tighten the locking nut with a spanner wrench.
Caution
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