Vertical multistage pump disintegration maintenance steps introduced

[Asia Pump Network News] Vertical multistage pumps using standard vertical motor and quick-loading mechanical seal, the replacement is very convenient. With the overall compact structure, small size, light weight, low noise, significant energy saving, easy maintenance and so on. The instrument always needs irregular maintenance, in order to avoid problems during use, the following to let Xiaobian to introduce vertical multi-stage pump disassembly and maintenance steps. Vertical multistage centrifugal pump disassembly and maintenance steps introduced due to different manufacturers and different models of pumps, pump body structure is also different; but the pump disassembly overhauls slightly two steps. One is from the bottom up a level out, the other is from the top to level out. The following (to the next) a class disassembled as an example: a, close the import and export valves, drain the pump body of water, do a good job at each level of demolition mark b, pull the pump body with a pull code Remove the cap nut, remove the bearing cover pull, remove the bearing, shaft seal or packing packing, mechanical ring seal demolition is strictly prohibited when the hard pry hard hit. c, remove the pump body outlet and the pipe connection screw, screw out the pump body and the base fixing bolts. Binding with hemp rope in the body 2/5 Department, lifting the pump away from the base slowly decentralized, down when the pump should remember not to bend the pump shaft, the pump flat on the ground plank. d, unscrew the pump shaft nut, remove the sleeve, and then remove the impeller (demolition process is not allowed to directly beat the hammer hammer bosses, impeller), and finally remove the shell. e. After the first stage bushing, impeller and shell are disassembled, the shaft should be removed and then be disassembled at the next level. (The pump shaft below 35mm can not be used as a power tool to move the water pump). f, the following levels of disassembly method is the same as above, please note that in order to disassemble the components at all levels placed; when the last level of all demolition components down so far. g, the whole work into the grinding surface between the parts, rust, clean the scale. In the clean-up process is strictly prohibited the use of diesel and hazardous substances. Vertical multi-stage centrifugal pump assembly metering pump: a, when the rust, cleaning, grinding work is completed, began to assemble the pump (assembly and disassembly in the opposite order and method). First install the level of bearing on the level of wood, and then placed on the outlet level above, and then the shaft with a vertical direction of the balance drum into the middle of the outlet level. b, the first stage impeller mounted on the shaft, put a waterproof ring on the edge of the shell. c, the sleeve sleeve on the shaft, and then install the next shell, and then install the second stage impeller, and then install the sleeve and the next level shell, so as to install the N-class method. d, after installing the last level, tighten the two reverse nuts. e, after doing the above work will be on the pump body hanging on the base, tighten the bolts. f. Install the mechanical seal (or install the packing), then install the bearings (note the orientation of the two bearings) and tighten the nut on the lock bearing. g, Manual turning, debugging easy to rotate, install the coupling. h, the motor hanging on top of the chemical pump body, check the distance between the two couplings, usually 3 ~ 5mm, check the motor and pump concentricity, tighten the motor and the pump body bolts. i, check all the fastening screws on the device. Then access the motor power cord. Further reading: Motor IFAT China's top ten brands Guangzhou Exhibition building water pump manufacturers ranking ptc Show article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor : Gogoing (QQ / wechat:) starting: http://beng.liuti.cn/ (service hotline:)

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