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3 Install the water pipe, the water level to the segment level or the direction of bend
This will result in accumulation within the inlet air, reduce water and vacuum pumps, the Centrifugal Pump suction head lower, a water decrease. The correct approach is: should water the direction of its horizontal section of a slight tilt, not level, but not upward tilt.
4 with the elbow into the water on the road more
If the inlet on the road with the elbow more, will increase the local flow resistance. And the elbow should be turn in the vertical direction, turning in the horizontal direction is not allowed, so as not to gather air.
5 pump inlet is directly connected with the elbow
This will make water flow through the elbow into the impeller unevenly distributed. When the inlet diameter larger than the Centrifugal Pump inlet should be installed eccentric adjustable tube. Eccentric adjustable tube mounted on the flat part to the above, some mounted on the slope below. Otherwise, gather the air, the less water or no water pumping, and crash and so on. If the inlet and the pump inlet diameter equal, and the elbow at the pump inlet pipe between the increase has been, not less than the length of straight pipe diameter of 2 to 3 times.
6 with the end of the inlet valve is not perpendicular to the next section
If this installation, the valve can not shut itself down, resulting in leakage. The correct installation method is: the end of the valve with the inlet, most preferably vertical next section. Not due to terrain conditions, such as vertical installation, the pipe axis and the horizontal angle should be 60 ° or more.
7 into the right position of the intake pipe
(1) into the intake pipe wall from the water bottom and the distance is less than the inlet diameter. If the bottom has sand and other dirt, the intake is less than the distance from the bottom diameter of 1.5 times, will result in poor or pumping water sucked into the sand and debris clogging the intake.
(2) into the inlet pipe into the water depth is not enough, this will cause the inlet swirl around the surface of the water produced, affecting the water, reducing the amount of water. The correct installation method is: small and medium sized Centrifugal Pump into the water depth of not less than 300 ~ 600mm, large pumps shall not be less than 600 ~ 1000mm.
8 outlet port above the normal water level in the pool
If the outlet above the normal water level in the pool, although the increase in the pump head, but the reduced flow. As a result of topographical conditions, it must be higher than the outlet out of the pool water, the mouth should be install in the pipe elbow and short pipe, so that a siphon pipe, reducing the height of the outlet.
