1.Installation of water pipes, horizontal section or upward:
In this way, the water can be gathered in the water pipe, and the vacuum degree of the water pipe and the water pump is reduced, the water suction head of the water pump is reduced, and the water discharge quantity is reduced. The correct approach is: the horizontal section should be slightly inclined to the direction of the water level, should not, not up.
2.The water inlet pipe is used on the elbow:
If the water pipe on the use of the elbow, will increase the local flow resistance. And the elbow should be in the vertical direction, not allowed to turn in the horizontal direction, so as not to gather the air.
3.Water inlet and the elbow is directly connected :
This causes the water to flow through the uneven distribution of the elbow into the impeller. When the inlet diameter is greater than 143c the water inlet of the water pump, eccentric reducer should be installed. Eccentric adjustable tube mounted on a flat part to the above, the inclined part installed in the following. Otherwise, the air, the amount of water is reduced or no water pumping, and there is an impact sound, etc.. If the water inlet pipe and the water inlet of the water pump is equal to the diameter, between the water inlet of the water pump and the elbow with straight pipe, straight pipe length of not less than 3 times the pipe diameter of 2 ~.?
4.Equipped with bottom valve inlet pipe the next section is not vertical:
Such as this installation, the valve can not be closed, resulting in leakage. The correct installation method is: a water inlet pipe valve, the next best is vertical. If the topographic conditions are not limited to the vertical installation, the water pipe line and the horizontal plane angle should be more than 60 degrees.
5.The water inlet of the water inlet pipe position is wrong:
1). From the nozzle into the tank bottom and wall distance is less than the diameter of the inlet. If the bottom sediment and dirt, water from the bottom of the distance is less than 1.5 times the diameter of the pumping water, will cause the poor in sediment or debris, blocking the water inlet.
2). The depth of water inlet pipe is not enough, it will cause the inlet swirl around the surface of the water, the water reducing effect, water. The correct installation method is: small and medium-sized water pump into the water depth shall not be less than 300 ~ 600mm, large pump shall not be less than 600 ~ 1000mm.
6.The water outlet in the above normal water pool:
If the outlet in the pool above the normal water level, although the increase of the pump head, but reduces the flow. As a result of terrain conditions, the water outlet must be high out of the water level of the water, should be installed in the elbow and the short pipe, the pipe become siphon, reduce the height of the outlet
