高潮毛片又色又爽免费,大地资源色婷婷视频在线,岳的大肥屁熟妇五十路99,欧美人与善交大片免费看,亚洲人成色777777老人头,又黄又爽又猛1000部A片,老色鬼久久AV综合亚洲健身,小S货又想挨C了叫大声点,当着全班面被C到高潮哭视频,朋友的娇妻HD中字

Hello, welcome to visit Shandong Xingheng Electric Motor Co., LTD., website!
86 534 6767 222
Current:Home>>Products

YDT series change-pole multi-speed three-phase asynchronous motorfor fans and pumps

YDT 變極多速三相異步電動機(jī).jpg

YDT series change-pole multi-speed three-phase asynchronous motor for fans and pumps is an energy-saving product promoted by the state government. The series of motor design is novel. According to the theory that the fan and pump load has characteristics of quadratic decreasing torque, motor power is proportional to cubic speed, the square of torque is proportional to the square and speed, match the right power for speed requirements. thus it can save a lot of energy, it’s the ideal power of  fan load type. It is widely used in metallurgy. Mining, textile, printing and dyeing, chemical, light industry, construction and civil facilities and other fields. 

YDT series motor has the same outline and installation dimensions as YE2 series , the protection level is IP54 and IP55. There are two types of two speeds and three speeds, It has features of high efficiency, energy saving, low noise, low vibration, good insulation performance, reliable operation, easy maintenance and other advantages.