Drainage pump
Mini Dry Claw vacuum pump,Lab Vacuum Pump,Claw Vacuum Pump,Screw Vacuum Pump Shandong Newels International Co., Ltd , https://www.newelsindustrial.com
October 09 07:04:39, 2022
Water pump for irrigation drainage. Most are leaf vane pumps, which utilize the rotary motion of the vanes to transport water flow. Pumps for irrigation and drainage in China began in the late 19th century. In 1918, Wuxi Xieji Machine Factory began to imitate 4-inch centrifugal pump. 1963 formulated a series of agricultural water pump spectrum, entered a new stage of development of the pump. By 1986, we have successively developed 44 series, 424 varieties and over 1,100 pumps of various specifications. There are more than 1,000 agricultural pump production plants nationwide, with an annual production capacity of 1 million sets. In 1988, there were 5.71 million sets of pumps for drainage and irrigation of farmland all over the country with the total auxiliary power of 59 million kW, ranking the first in the world in number and capacity. Since 1983, China has gradually renewed its existing water pump series according to international standards (ISO / TC-115 / SCE). Type According to the principle of operation and reflecting the characteristics of the pump than the speed of the overall parameter ns is divided into centrifugal pump (ns = 40 ~ 300), mixed flow pump (ns = 300 ~ 500), axial flow pump (ns ≥ 500) Pumps and so on.