Installation, Operation and Maintenance Manual
Butterfly Valve Type 55
・
Type 55IS Pneumatic Actuated Type TA
13
- The parallelism and axial misalignment of the flange surface should be under the values shown in the
following table to prevent damage the valve.
(A failure to observe them can cause destruction due to stress application to the pipe.)
Unit : mm (inch)
Nom. Size
Axial
Misalignment
Parallelism
(a-b)
50-80mm
(2”-3”)
1.0mm (0.04”)
0.8mm (0.03”)
100-150mm
(4”-6”)
1.0mm (0.04”)
1.0mm (0.04”)
200-400mm
(8”-16”)
1.5mm (0.06”)
1.0mm (0.04”)
(12) Support Setting Procedure
- Set valve support on the valve.
●
Spanner wrench
●
U-type clamp (with bolt)
●
Rubber sheet
Level installation
Set the stand under the valve.
Spread the rubber sheet on the pipe and secure pipe with U-
type clamp.
Perpendicular installation
Spread the rubber sheet under the actuator and connection
part of body and actuator.
Spread the rubber sheet on the pipe and secure pipe with U-
type clamp.
(Axial misalignment)
(Parallelism)
Necessary items
Caution
Caution
