2017/05/04

Nine steps to select a sewage lift pump


We may often wonder how do people deal with and drain wastewater, such as rain water, dirty water generated in construction site and water having been used in bathing? WEL Pump Industry tells you that the treatment and drainage of sewage water needs a professional equipment, i.e. Sewage lift pump.
How could we find out which sewage lift pump is better, and how should choose from the brands of sewage lift pumps?
Now the WEL Pump industry will show you how to judge the quality of sewage lift pumps though nine of its performances.
Number 1, flow quantity
This refers to the amount of water discharged by a sewage lift pump in an hour. You can choose according to your own practical conditions.
Number 2, pump head
This refers to the maximum height the pump can lift the sewage water to. If you live on the first floor, you house may be 3m to 5m high. Considering about pipe loss, you need only 5m~8m head. But you should also make sure the flow quantity is enough too. Therefore, when selecting an integrated sewage lift pump, you should note the changing curve of flow quantity and head.
Number 3, diameter of flow-passing part
This indicates the maximum diameter of particles that can pass through the discharge pipes.
Number 4, protection level
The protection level for some parts of small sewage lift pump is IP44. Higher level stands for safer pump.
Number 5, case material
The case for sewage lift pump is generally PP/PE/ABS.
Number 6, heat dissipation
When the sewage lift pump is running, especially at high speed, its temperature will also be very high. In this case, heat dissipation will become an important index for measuring its performance.
Number 7, start control
That is to say under what condition is the sewage lift pump started, how is it controlled.
Small sewage pumps had better be pneumatic. Pneumatically controlled sewage pump will not get its floating ball winded and will not fail to start up. This is a fairly exact way of control.
Number 8, service life
Of course longer service life is better, since it can avoid the troubles of changing and maintaining. In order to save money, some clients will buy a cheap sewage pump produced in a small scale factory. At last, a few years later, the cost for maintenance and changing will surpass the cost for purchasing a more stable and safer sewage pump.
Number 9, the difficulty level in maintenance
Sewage pumps would go wrong. It will be a difficult task to dismantle and maintain the pump. The internal surface of the pump case will be dirty after some time of operation.

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