Describe the structure characteristic and working principle of pressure seal swing check valve. Material selection and thrust ring design.
阐述了自压密封旋启式止回阀的结构特点、工作原理、材料选用和止推环设计。
NIBCO swing check valves are available with an outside lever and weight. The lever and weight arrangement is used to maintain exterior control over disc movement.
尼伯科旋启式止回阀可配置外部操纵杆和压铁。操纵杆和压铁用于对阀瓣进行外部控制。
Swing Check Valves additionally allow higher volume of fluid transmission.
此外，旋启式止回阀能够通过的流量更大。
Swing check valves are normally designed for installation in horizontal pipe runs.
旋启式通常适用于安装在水平管道上。
Swing check valves are used to prevent reversal of flow in horizontal or vertical pipe lines.
旋启式止回阀用于防止水平管路或垂直管路的流体倒流。
Check them Safety Valves belonging to this type of valve, which includes Swing check valve and lift check valve.
其中止回阀就属于这种类型的阀门，它包括旋启式止回阀和升降式止回阀。
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。
Certain system configurations involving direct connection of a Swing Check Valve to other flanged equipment may require consideration of this bolt clearance.
某些系统配置，包括旋启式止回阀直接连接到其他法兰设备的场合可能要求考虑这种螺栓所需要的间隔。
General installation Information: Utility Swing check valves are designed for horizontal installations, but may be installed in up-flow only vertical position.
一般安装信息：实用旋启式止回阀设计用于水平管道安装，但是也可以安装在垂直朝上的位置。
General installation Information: Utility Swing check valves are designed for horizontal installations, but may be installed in up-flow only vertical position.
一般安装信息：实用旋启式止回阀设计用于水平管道安装，但是也可以安装在垂直朝上的位置。
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