Seeking expert advice on the clearances of various components in multi-stage pump maintenance!
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Clearances of various components and precautions for the major overhaul of multi-stage pumps! Need some advice! ! !
Check the free run; after centering the rotor, install the thrust bearings according to the rotor’s position, and measure the thrust clearance!
That’s too much! The clearance between each stage of the impeller mouth ring and the casing mouth ring has a direct impact on the pump’s efficiency ； Total and partial stroke of the pump ； Rotor flow channel alignment data ； thrust clearance ； Elevation at both ends of the rotor ； Bearing clearance ； Mechanical seal compression amount ； Find alignment and centering data, etc ； The specific requirements and data are listed in the \"maintenance procedures\".
Please specify the operating conditions in more detail: model, flow rate, head, name of the medium, medium temperature, material of the pump, flange diameter, and material used for flange pairing. There’s not a single sentence that even the gods could answer!