ã€Asia Pump Network News】 Shielded pump is a sealless pump, because there is no shaft seal, can be leak-free, and therefore play an increasingly important role in the chemical plant. Then its installation should pay attention to what, in order to make it a better job, improve work efficiency, the following Xiaobian to support your branch. Shielding pump installation precautions Shielding pump installation Notes 1) In order to improve pump suction performance, the pump suction pipe should be as short as possible, as far as possible less curved (elbow is best to use a large radius of curvature) and at the dead ends plus Valves; inlet side piping should be selected to fully meet the requirements of NPSH diameter, should be greater than or equal to the pump inlet diameter. Single suction pump at the entrance, it is best to configure a period of about 3 times the diameter of the straight pipe imports. Induction wheel can also be added to solve the cavitation problem if necessary. 2) When conveying liquid with the density less than 650kg / m3, the suction pipe of the pump should have a slope gradient pump 1/10 ~ 1/100 so as to return the vaporized gas to the suction tank to avoid cavitation of the pump. 3) If the pipe diameter is different, eccentric reducer should be used to avoid the formation of air bags. 4) For the convenience of maintenance, be sure to install a stop-flow valve horizontally at the pump inlet. It is advisable to install a ball valve with low resistance. 5) conditions in the suction side of the filter installed large enough filter, filter mesh should be 30 ~ 50 mesh / inch or so. The above is the shield pump should pay attention to the installation points, the main should be based on the specific circumstances of the correct method of installation, I hope the above information is helpful for your installation. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: Zeng Fenfen (QQ / micro letter: 2355962927) starting: http: //beng.liuti.cn / (Service Hotline: 400-6030-811)