In the sewage treatment industry, sewage pumps are one of the most commonly used types of water pumps. Among them, self-priming sewage pumps and submersible sewage pumps are more common. Both pumps have powerful sewage discharge functions and are mainly used to transport Granular sewage, long-fiber sewage, sandy sewage, mud recovery, etc. So, what is the main difference between these two pumps and which one is better?
Self-priming sewage pumps and submersible sewage pumps have non-clogging functions, so they can also be called non-clogging sewage pumps. To understand the difference between self-priming sewage pumps and submersible sewage pumps, we must first look at the actual working conditions.
The self-priming sewage pump is mostly suitable for pumping the sewage directly without putting the pump in the water. In such a working environment, we must use a self-priming sewage pump, the model is ZW self-priming without Block the sewage pump. If the sewage is corrosive, then we can choose stainless steel. ZW self-priming sewage pump is mainly composed of pump body, impeller, rear cover, mechanical seal, pump shaft, bearing seat, gas-liquid separation pipe, water filling valve, inlet and outlet pipes, and imported one-way valve. The biggest highlight of this pump is the combination of self-priming performance and non-clogging sewage discharge. It has dual-purpose pumps. It can not only pump clean water medium without impurities like a self-priming clean water pump, but also pump sewage containing large particles of hardness impurities and long fiber garbage. This kind of pump is a shore machine pump, which is used at the pool side. Install a pipeline self-priming sewage pump, which cannot be directly thrown into the medium for use.
ZW self-priming sewage pump
Self-priming sewage pump advantages:
1. The equipment is working on shore, and the working status is convenient for monitoring;
2. It has self-priming function, no need to put it in water, the motor will not be damaged except for abnormal operation;
3. Convenient maintenance and maintenance, there is no need to move the motor when disassembling the pump 4. If it is outdoors or where there is no power supply, a diesel engine self-priming pump is optional, without the need to pull a long cable
Disadvantages of self-priming sewage pump
1. Relatively bulky and high transportation cost;
2. During the installation process, pipes need to be connected, anchor bolts are needed, and the level is found;
3. High requirements for the water inlet pipe, if water leaks, air leakage will affect the self-priming function;
Submersible sewage pumps are mostly suitable for simple and convenient sewage transportation conditions, that is to say, the sewage pump is directly thrown in the sewage tank to transport sewage. Most of its models are WQ submersible sewage pumps. We can also choose stainless steel for transportation with slight corrosion. Compared with the self-priming sewage pump and other vertical sewage pumps, the biggest feature of the WQ series submersible sewage pump is that the pump and the motor are connected together, and can work under the liquid at the same time, reducing the installation pipeline and other links. Due to the special anti-clogging design, it has a unique effect in discharging solid particles and long-fiber waste, which can replace shoulders, liberate labor and improve work efficiency.
QW submersible sewage pump
Submersible sewage pump advantages:
1. Under the same power condition, it is relatively small and easy to move
2. Easy to install, just put it in the water, and work directly after power on;
3. Under the same flow head, the price of submersible pumps is generally lower than that of self-priming pumps
Disadvantages of submersible sewage pump 1. The whole equipment is underwater, so it is relatively inconvenient to maintain;
2, the pump body is under water, it is easy to be corroded, if water enters, it will burn the motor;
3. Cables are prone to ageing and abrasion, especially in the moving process, if the cable is damaged, there is a risk of leakage
Submersible sewage pumps can be extended from stainless steel submersible sewage pumps, self-coupling fixed submersible sewage pumps, cutting-type submersible sewage pumps, explosion-proof submersible self-priming sewage pumps, mobile submersible sewage pumps, and automatic agitators according to different performance, installation methods and materials. Uniform submersible sewage pump and other types are convenient for users to choose and use according to different media.
