1.The easiest way. Self-priming pump sewage pump is arranged in the water pipeline, water pump start before the vacuum pump starts to pump water pipe Neixianbu with water, to ensure the pump automatically and quickly start. This way of water absorption requires a sound automatic control system to ensure the normal operation of the system.
2.Simple methods, self-priming sewage pump can reduce water pipe bend, drop height and horizontal interval.
3.Self-priming sewage pump is arranged in front of the pump suction tank. This way is needed in a suction tank set the pump suction pipe, water pump in the first operation, artificial internal tank filled with water, the first run to stop, because the water inlet pipe is higher than the height of the water tank inside the tube height of the water tank, despite the height of the water tank is lower than the water level, water tank can't go back, into the pool, so the water absorption can be stored, and because water tank outlet pipe (i.e. pump suction pipe) tube height is lower than the height of the water, so it can ensure the pump suction pipe is full of water, and then after the pump is running, the water tank is pumped away in the tank on the negative pressure, the water in the pool under the action of atmospheric pressure added to the water tank through the suction tank inside the pool.
4.Self-priming sewage pump suction pipe is installed at the end of the suction end of the valve. Suction end of the valve is actually a check valve, it can only guarantee the flow by the pool into the suction tube can not turn the clock back, so if the water pipe is full of water, despite the elevation axis pump the water level above the pool, but because the suction end of the valve function, the suction tube into the pool water will not enable the suction tube has been filled with water to ensure the pump can automatically and quickly start.
