Issue with the installation direction of the butterfly valve at the elbow on the water inlet side

2018-06-29View Original

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As shown in the figure below, does the good position indicated in the diagram match what is described in the text?

Reply #22018-06-29

The good position indicated in the diagram does not match the description in the text.

Reply #32018-06-29

Could you explain it? This is the exact wording from the valve manual; all other information available online is just a copy of it.

Reply #42018-06-30

1. Deviation of the fluid flow at the inlet of the butterfly valve results in uneven stress on the valve disc. 2. To reduce uneven stress on the valve disc, the shaft of the butterfly valve disc is made to pass through the flow deviation area from the middle, as shown in the figure.

Reply #52018-07-04

So, A-A diagram should indicate a good configuration, right?

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Issue with the installation direction of the butterfly valve at the elbow on the water inlet side

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