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Horizontal multistage centrifugal pump installation steps and precautions
[Asia pump network hearing] horizontal multistage centrifugal pump is mainly used for high pressure water supply, high-rise building water supply, can also be used for water supply and drainage factories. Xiaobian now tell you that horizontal multistage centrifugal pump installation steps and precautions. Horizontal multistage centrifugal pump First, the horizontal multistage centrifugal pump installation steps (1) unit shipped to the scene, with the base has been installed motor, leveling base can be removed without having to pump and motor. (2) The base on the ground, near the anchor in the ground pad wedge-shaped horn, the base pad 20 to 40 mm high, ready to level after filling the slurry used. (3) Check the level of the base with a level meter, flatten the foot nut to fill the base with grout, until the cement should be checked again after the level of dryness. (4) When the unit power is large, in order to facilitate the transportation, the pump, the motor and the base may be packaged separately. At this time, the user is required to install and correct the pump unit. The method is as follows: a. Remove the dirt on the feet and the motor feet, and put the pump and motor on the base. b. Adjust the pump shaft level, tighten the nut properly after leveling to prevent ambulation. c. Lift the motor so that the pump coupling and motor coupling cooperate and lower the motor to the appropriate position. d. adjust the gap between the two coupling is about 5mm, and the correction of motor shaft and pump shaft axis coincide, the method is to place the flat ruler on the coupling, the two coupling cylindrical and flat feet phase , If not overlap, should adjust the relative position of the motor or pump, or pad to adjust the sheet. e. In order to check the accuracy of the installation, the gap between the two coupling planes must be measured with a feeler gauge at several different positions on the circumference of the coupling. The difference between the maximum and minimum clearances on the plane of the coupling must not exceed 0.3 mm. The centerline of the difference between the upper and lower sides or not more than 0.1 mm. (5) When the unit is not with the base, you need to install directly on the basis of the method similar to 4, but should pay more attention to the correction. Second, horizontal multistage centrifugal pump installation precautions 1, the installation of pipe weight should not be subjected to the pump, otherwise easy to damage the pump. 2, the installation must be tightened anchor bolts, and each interval of time to check the pump to prevent its loosening, so as to avoid the pump start violent vibration and affect the performance of the pump. 3, before installing the pump should carefully check the pump runner has no effect on the operation of the pump hard material (such as stones, iron sand, etc.) in case of damage to the flow pump running over-current components. 4, in order to maintain the convenience and safety of use, install a regulating valve on the pump inlet and outlet piping and install a pressure gauge near the pump inlet and outlet, for high lift pump, to prevent water hammer, should also be installed in front of the outlet gate valve A check valve to cope with the loss of power due to sudden power outages and other production accidents, so as to ensure that the pump running in the best conditions to extend the service life of the pump. 5, pump suction there occasion, should be equipped with the end of the valve, and the inlet pipe should not have too many corners, while no leakage, leakage phenomenon, so as not to affect the pump suction performance. 6, in order to prevent impurities from entering the pump to block the flow channel affect performance, should be installed in front of the pump inlet filter. 7, before installing the rotor pump rotor components, there should be no friction or stuck phenomenon, or should open the pump to check the reasons. Further Reading: pump valve pipe fittings Exhibition Water Expo Xiamen exhibition of marine equipment Internet + Forum Yiwu Fair 2016 exhibition mold top ten brands of the Internet information industry (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)