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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Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely.

水泵不吸水，压力表及真空表的指针在剧烈摆动。

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The fixed value of swing type of oil pump rotor is an important target for controlling and inspecting rotors quality.

摆线型机油泵转子的定值是控制和考核其质量的一个重要指标。

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Spring-actuated valve to be used on pump discharge. Swing check with outside lever and spring to be used on sump, sewage and storm drain lines.

弹簧执行机构止回阀用于管道排放。外置操作手柄和弹簧执行机构的旋启式止回阀用于污水坑、排污和雨水排泄管道。

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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 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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