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结构及用途 structure
and purpose
该阀用于水泵出口控制水泵的实际工作扬程
,以限制水泵的工作流量,限制水泵电机负载,使水泵在较高效率状态下工作,防止水泵电机在低扬程、大流量、低效率时发生过载现象，防止超额定电流烧坏水泵电机现象发生，同时起到一定节能效果。安装、维护、调试、检查方便，使用寿命长，同时具有缓闭清声止回阀功能。
This valve is used at a water pump＇s outlet to control the
real working head of the pump so as to limit the working
flow and the motor＇s load of it，make the pump working in a
higher efficiency, prevent the motor from being overloaded
in case if a low head，a big flow or a low efficiency and
from being burnt due to an extra-rated cu r rent，with a
certain energy saving effect Easy
installation，maintenance，adjustment and check，long duration
and of the function to be a slowly closed silencing check
valve. |
