DG type horizontal multi-stage boiler feed pump assembly quality is related to whether the pump can be normal operation, and even related to the pump life and performance parameters, and affect the unit vibration and noise, so in Pump assembly should pay attention to the following matters: DG horizontal multi-stage boiler feed pump assembly precautions 1, the fixed part of the assembly after the concentricity of parts manufacturing accuracy and assembly quality to ensure that the parts should be processed and precision Surface roughness, not allowed to touch, scratch. Molybdenum disulfide used as a sealant should be clean. Tightening screws, bolts should be force evenly. 2, impeller exit runner and guide vane inlet flow channel is dependent on the axial size of the parts to ensure that. The quality of the flow channel has a direct impact on the performance of the pump, so the size of the pump can not be adjusted. 3, After the pump is assembled, before turning on the filler, turn the pump rotor by hand to check whether the pump rotor rotates freely in the housing and whether the axial movement meets the specified requirements. 4, after the inspection meets the requirements, add packing at the shaft seal at both ends of the pump, pay attention to the relative position of the packing ring in the packing room. In addition, the pump disassembly and pump assembly sequence is exactly the opposite, but the demolition should be strictly protected parts manufacturing accuracy from being damaged. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http://beng.liuti.cn/ (service hotline:)
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