External flow switch inhibits pump output when no sample flow is available.
在没有可用的样本时，外部流量开关将会抑制泵输出流量。
Start the bilge water feed pump, check the feed water solenoid valve and flow switch.
启动舱底水供给泵，检查补水电磁阀和流量开关是否工作。
Flow switch can be installed in a reducing tee, standard tee or welded fitting.
开关可以安装在异径三通管，标准三通管或焊接管件上。
Flow switch can be installed in a reducing tee, standard tee or welded fitting.
开关可以安装在异径三通管，标准三通管或焊接管件上。
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