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4.2 Installation positions of the valve
Valve can be installed in a vertical (see figure 11, section 1), horizontal (2) or diagonal (3) pipeline.
NOTE:
See chapter "4.2.1 Installation in a horizontal pipeline" for more specific instructions for
installation in a horizontal (2) or diagonal (3) pipeline.
Y
1
After a pipe bend valve should be installed so that the stem axis is perpendicular to the pipe bend axis,
see figure 9.
Especially a control butterfly valve should be installed after a centrifugal pump so that stem axis is at 90°
angle in relation to the pump shaft axis, see figure 9. However, if two valves are installed one after the
other, the stems must be perpendicular to each other.
When installed this way, the loading on the valves is more even and vibration that may otherwise be
present will not be generated.
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Figure 11. Possible installation positions of the valve.
2
3
X
11
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