Can it be pumped up with the siphon tank and pump arranged this way?
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The pool on site is 4 meters deep, while the pump and siphon tank need to be placed in a workshop 30 meters away. So, may I ask the experts here: can this pump draw water up?
The 30-meter pipeline should be parallel to the water suction surface and then connected perpendicularly to the pump; it is not allowed to first align the pipeline vertically with the pump’s centerline before making the connection
It depends on your pipeline loss during import and the net positive suction head of the pump
The pump and bucket are placed 30 meters away in a pool 4 meters deep; with this arrangement, the pump cannot draw water upward, unless the bucket is placed right by the edge of the pool, in which case it’s barely possible. Then the customer chose a pump that could draw water up, and ordered a siphon tank from me. I then wondered whether, if water couldn’t be drawn up later on, it would be considered a problem with that pump or with my siphon tank. . . .
Installing a bottom valve can solve the above problems
Agree with the view of the guy on floor 2
The pipeline first rises vertically 4 meters from the pool to the ground level, and then moves horizontally for 30 meters to reach the siphon tank; the pump and the siphon tank are placed together. Ask whether this pump can draw water up. Their pump is a centrifugal pump with a capacity of 5 cubic meters per 25 meters of flow, and its net positive suction head is 2.5 meters. I just stopped selling this bucket; it doesn’t suck properly, and if that happens people will blame the bucket. . . . But I wonder if this setup can actually suck things in.
It depends on the capacity of your tank and the diameter and length of the inlet pipe.
Generally, few people design self-priming pumps in this way; instead, the suction pipeline is kept as short as possible. To be able to draw liquid in, first, the capacity of the tank must be at least twice that of the self-priming pipe, to ensure sufficient space for storing liquid. Meanwhile, the diameter of the self-priming pipe should not be too large; it’s best to match the diameter of the pump’s inlet pipe. If it’s too large, it will be difficult to draw liquid in. Additionally, cavitation in the pump needs to be taken into consideration: if NPSHa – NPSHr > 1.5 m, then liquid can generally be drawn in; otherwise, cavitation occurs and liquid cannot be drawn in.