Note: On pump discharge, the preferred check valves are an in-line spring loaded, swing design with lever and weight or lever and spring.

注意：在泵排泄口，首选的止回阀是管内弹簧负载，带杠杆和压铁或杠杆和弹簧的旋启式止回阀。

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And ensure the pump at work, no more than the allowed NPSH. 4, suction and discharge line should be a support.

并保证泵在工作时，不超过其允许汽蚀余量。4、吸入和排出管路应该有支架。

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Note: on pump discharge, the preferred check valves are an in - line spring loaded, swing design with lever and weight or lever and spring.

注意：在泵的排泄口处，首选的止回阀是管内弹簧负载，旋启式，配置杠杆和重量或杠杆和弹簧。

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Before installation on the suction and discharge line to clean, remove rust and dirt, especially welding pipe welding slag must be thoroughly cleared, to avoid killed after entering the pump.

安装前对吸入、排出管路要清理干净，去掉铁锈等脏物，特别是焊接管路的焊渣必须彻底清除，以免进入泵后咬死。

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NOTE: On pump discharge, the preferred check valves are an in-line spring loaded, swing design with lever and weight or lever and spring.

注意：在泵的排泄口处，首选的止回阀是管内弹簧负载，旋启式，配置杠杆和重量或杠杆和弹簧。

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NOTE: On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.

注意：在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。

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On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.

在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。

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On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.

在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。

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