2021欧洲杯买球软件

阀门启闭不良
发布时间:2020-01-16 14:37 发布作者:admin
        阀门启闭不良表现为阀门开不启或关不死、阀门无法正常操作。原因为:阀杆锈蚀;闸板卡死或闸板长期处于关闭状态下锈死;闸板脱落;异物卡在密封面或密封槽内;传动部位磨损、卡阻。遇到以上情况维修、润滑传动部位;反复开闭阀门和用水力冲击异物;更换阀门。
分享到:
0
热门推荐
热门应用
上一篇:传动装置故障
下一篇:阀门漏水
一键拨号
document.write(unescape('%3Cscript%20type%3D%22text/javascript%22%20src%3D%22https%3A//js.users.51.la/21034249.js%22%3E%3C/script%3E%0A%3Cscript%3E%0Avar%20_hmt%20%3D%20_hmt%20%7C%7C%20%5B%5D%3B%0A%28function%28%29%20%7B%0A%20%20var%20hm%20%3D%20document.createElement%28%22script%22%29%3B%0A%20%20hm.src%20%3D%20%22https%3A//hm.baidu.com/hm.js%3Fffdc757576b1094ff99aa3ba0620e172%22%3B%0A%20%20var%20s%20%3D%20document.getElementsByTagName%28%22script%22%29%5B0%5D%3B%20%0A%20%20s.parentNode.insertBefore%28hm%2C%20s%29%3B%0A%7D%29%28%29%3B%0A%3C/script%3E%0A'));