污水泵和潜水泵的区别主要体现在以下三个方面
The difference between sewage pump and submersible pump is mainly reflected in the following three aspects
1、两种泵的使用工艺不同
1. The use process of the two pumps is different
潜水泵适合一些特殊地工艺要求，比如泄漏、流体介质特殊等，价格较贵。污水泵一般用于调节，也有开关量的，比如：风机盘管末端。
Submersible pump is suitable for some special process requirements, such as leakage, special fluid medium, etc., and the price is relatively expensive. Sewage pump is generally used for regulation, but also has switching value, such as: fan coil end.
2、两种泵的开关形式不同
2. The switch forms of the two pumps are different
潜水泵通过线圈驱动，只能开或关，开关时动作时间短。污水泵的驱动一般是用电机，开或关动作完成需要一定的时间模拟量的，可以做调节。
The submersible pump is driven by a coil and can only be turned on or off. The action time of the switch is short. Generally, the drive of sewage pump is motor, which needs a certain amount of time to complete the opening or closing action, and can be adjusted.
3、两种泵的工作性质不同
3. The working properties of the two pumps are different
潜水泵一般流通系数很小，而且工作压力差很小。比如一般25口径的潜水泵流通系数比15口径的电动球阀小很多。潜水泵的驱动是通过电磁线圈，比较容易被电压冲击损坏。相当于开关的作用，就是开和关两个作用。
The general circulation coefficient of submersible pump is very small, and the working pressure difference is very small. For example, the flow coefficient of 25 caliber submersible pump is much smaller than that of 15 caliber electric ball valve. The driving of submersible pump is through electromagnetic coil, which is easy to be damaged by voltage shock. It is equivalent to the function of a switch, that is, opening and closing.