How to select 12 hp deep well submersible pumps?

12 hp deep well submersible pumps are a kind of vertical multistage centrifugal pump. It gets water out of deep wells.

With the underground water level dropping, deep well pumps are more widely used than common centrifugal pumps.

However, some clients didn’t choose a correct model of pump. As a result, either the pump doesn’t fit in with the well, or it can not send out water or send out enough water. Even the well may be damaged.

So how should a client select a deep well pump correctly?

1. We should choose submersible multistage pump according to the allowed maximum yield of the well of water source.

The practical flow quantity must be in line with the actual yield of the water well. It must be equal to or a little smaller than the actual yield. Otherwise, forced pumping will be inevitable, which will not only shorten the service life of the deep well submersible pump, but also, in worse condition, damage the filter screen, causing unstoppable flowing of sands, or even ruin the water well.

2. The diameter of 12 hp deep well submersible pumps must be in line with the diameter of the well.

To make it easy to hoist up and put down the deep well pump, to make the underground water accumulate quickly if any space is available with no resistance, and to reduce of the pump in operation, the well diameter from lifting pipe to pump body should be larger than the maximum diameter of the pump by 20~40mm. That is, the part of the pump with the largest diameter should have a 10~20mm annular clearance to the wall of the well. In this way, the service life of both the well and the deep well pump can be prolonged.

3. When you put the pump down into the well, never put the pump head at the position of the filter pipe, but at the position of the well wall pipe. Otherwise, when the pump works, it will cause unstoppable flowing of sands or damage the well.

We should decide the shaft forming structure of the well (well diameter, pipes positions), the depth of the well and the model of water pump according to the well logging curves of the manhole and the hydro-geological conditions of the well in question and adjacent water wells (including the depth, thickness and litho logy of the water source) and the operation conditions of the water pump, so as to avoid any possible problems in future when putting down the 12 hp deep well submersible pumps or the pump is running.

Contact: info@welpump.com