The top of the drainage pump is not really settled by the lifting tallness and pipeline misfortune, and afterward, a decent free head is added.
The free head ought to be 0.02~0.03MPa. The stream speed of the attractions line and outlet line of the drainage pump ought not to be under 0.7m/s and ought not to be more noteworthy than 20m/s.
In open structures, a backup pump ought to be set up with each living drainage catchment as a unit, and it ought to be worked on the other hand at conventional occasions. In case there are at least two drainage pumps for the drainage of the cellar, gear room, and carport, the hardware shouldn't be utilized. At the point when the sump can not be furnished with a mishap channel, the pump ought to have a continuous force supply; when the channel and delta line can be shut, the continuous force supply may not be given, however, a caution gadget ought to be installed.
While lifting sewage and wastewater with huge pollutants, the power source lines of sub sewage pumps in various sumps ought not to be released together; when lifting general wastewater, the power source lines of submersible sewage pumps in various sumps can be joined and released by the genuine circumstance.
At the point when at least two water pumps share a water outlet pipe, a valve and a check valve ought to be introduced on each water pump outlet pipe. At the point when a solitary water pump channel might cause reverse, a check valve ought to be given. It isn't permitted to blend the strain drainage port with the gravity drainage pipe in the structure.
At the point when the submersible sewage pump contains huge debris, the sub sewage pump ought to be furnished with a devastating gadget; when the sewage contains more stringy materials, a huge channel sub sewage pump ought to be utilized.
At the point when the submersible sewage pump engine power is more noteworthy than or equivalent to 7.5kW or the water outlet pipe measurement is more prominent than or equivalent to DN100, the water pump fixed auto-coupling gadget can be utilized; when the sub sewage pump engine power is under 7.5kW or the water outlet pipe breadth is under DN100, delicate Pipe portable establishment. At the point when a submersible sewage pump is utilized to deplete the sewage assortment tank, a proper auto-coupling gadget for the pump ought to be introduced to work with the support of the pump.
The drainage pump ought to have the option to begin and stop naturally and physically on location. Different pumps can be worked then again in equal, or put into activity in segments.
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