butterfly check valve meaning in Chinese

蝶式止回阀

The litter - resistance slowly closing butterfly check valve is developed a newest product based on our butterfly check valve , hydra - matic transmission to be add in the valve with unique design , new stuction and optimum performance , can be used pipeline of water supply and dring with such media : fresh water , sea water , sewage , raw water , ect . the valve should be installed at outlet of the water pump , in stapping the pump , the process of slowly closing after valve plate shuts rapidly . can be guard effectively against the destruction water hummer , so to ensure the safe operation of the pipline
微阻缓闭蝶式止回阀是在我厂生产的蝶式双瓣止回阀的基础上利用能量转换原理增设油压缓闭装置的新型模式止回阀，设计独特，结构新颖，性能优宜，适用于净水，源水，污水，海水等介质的供、排水管路中，安装于水泵出口端，停泵时由于油压阻尼作用法盘先速闭后缓闭，以消除破坏性水锤，保证灌路安全运行。