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Why is it said that a reducing check valve can be used to lower the height of the pump outlet isolation valve?

2015-10-19View Original

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Using a reducer changes the diameter; how can the height be reduced?
Reply #22015-10-19
The pump outlet usually has a diameter change; using an eccentric check valve allows one fitting to be omitted, thereby reducing the installation height
Reply #32015-10-19
Using reducers can reduce the pump’s installation height, but only to a limited extent.
Reply #42015-10-19
I do not recommend using it this way. My approach is as follows: 1. For outlet pipes of 3 inches or less in diameter: connect them directly upwards. 1. For outlet pipes of 4 inches or more in diameter: connect them back to the ground level; install the valves along the side of the pump before connecting them upwards. Make sure to drain any remaining fluid, and avoid letting the pipes extend near the motor.
Reply #52015-10-19
The diameter changes; the decrease is so small that it’s hard to detect even with the naked eye
Reply #62015-10-20
So I saved the height difference between the large and small ends
Reply #72015-10-20
Why are large pipes laid upward after reaching the ground?
Reply #82015-10-20
A reducing check valve – I’ve never seen one before. . . Do places usually deduct up to this extent? . .
Reply #92015-10-20
If large pipes are installed vertically, the shut-off valves will have to be placed at a high position. Moreover, when the piping work is not done properly, installing things vertically can lead to stress concentration at the pipe ends.
Reply #102015-10-21
Will this cause a fluid pocket?

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