What causes acid and alkali resistant vertical pumps to leak?

　　Acid and alkali vertical pump is a kind of engineering plastics PP/PVDF injection molded vertical centrifugal pump, with acid and alkali corrosion resistance, oxidation resistance, no water can be idling characteristics, more used in the field of waste gas treatment in the waste gas tower, painting, biological deodorization, pickling, printing and dyeing, circuit boards, the electronics industry, and many other fields, acid and alkali vertical pump leakage in the use of the process of what are the reasons for the cause of the water?

　　Acid and alkali vertical pump leakage causes

　　Acid and alkali vertical pump leakage causes can be analyzed from these aspects: boot leakage, shutdown leakage.

　　Water leakage analysis

　　1、Low voltage: adjust the voltage.

　　2、Impeller damage or wear: replace the new impeller.

　　3, inside the pump body or the inlet pipe screen by debris stone blockage: check and clean up the blockage.

　　4, the export pipeline installation is not correct too many elbows: too many pipes into the N-shaped pipeline is recommended to install an automatic exhaust valve at the higher point.

　　5、Acid and alkali vertical pump suction range is too high or suction pipeline is too long: reduce the suction range or shorten the pipeline.

　　6, acid and alkali vertical pump assembly process rubber seal O ring, not installed, or fastened too tight, resulting in deformation of the rubber ring damage without sealing effect, vertical pump installed on the boot leakage.

　　7, acid and alkali vertical pump in the assembly process, the screws are not diagonally fastened, resulting in vertical pump fastening bias core, sealing is not tight, resulting in leakage of the pump body seals, or flange connection leakage occurs.

　　8, acid and alkali vertical pump in the installation process has certain installation requirements, the liquid level needs to exceed the height of the impeller, not more than 2/3 of the subject. Vertical pump leakage may be the cause of vertical pump installation height is too low, the liquid level is more than 2/3 of the subject, the liquid from the overflow hole, solution: enhance the installation height of the vertical pump.

　　9, mechanical seal wear, treatment: adjust the seal friction position, take out the seal, and then exchange the orientation of the device, such as the seal on the fastening spring loss of elasticity or cracking, you can remove the spring, with the appropriate diameter of the steel wire or iron wire tightening.

　　10, suction pipeline leakage:: eliminate pipeline leakage phenomenon, within the allowable suction range check method pump start 4-5 minutes water has not been sucked up, please use your ear close to the inlet pipeline suspected leakage to listen to the sound of suction, or suspected leakage in the place of the coating of white latex and other methods to repair.

　　Reason for stoppage of water leakage

　　Acid and alkali vertical pump conveying liquid height is relatively high, need to be installed at the exit check valve, if not installed check valve, downtime, the liquid in the pipeline a large number of reflux, resulting in the liquid level in the pump, resulting in a sharp rise in the level of liquid from the overflow hole out.

　　Acid and alkali resistant vertical pump is easy to install, wide range of applications, vertical pump leakage in the process of use, on the one hand, the reason for the pump, on the other hand, is the installation of piping or the pump installation method caused by the pump quality can be through the understanding of the strength of the factory, the quality of the product and other information.