投入式止回阀是钻柱内防喷器。
此外，旋启式止回阀能够通过的流量更大。
Swing Check Valves additionally allow higher volume of fluid transmission.
旋启式止回阀可以防止管路中的流体倒流。
Swing Check valves prevent reversal of flow through pipe lines.
CPO系列套装式止回阀性能好，安静、坚固。
The Series CPO Slip-On Check Valve is designed to be efficient, quiet and tough.
旋启式止回阀用于防止水平管路或垂直管路的流体倒流。
Swing check valves are used to prevent reversal of flow in horizontal or vertical pipe lines.
三偏心斜盘式止回阀是适用于在管道上水平安装或立式安装。
Triple Eccentric Tilting Disk Check Valves are applicable to mounting in the pipelines both horizontal and vertical.
升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣，阀瓣的升程不高。
Lift check valve with a spring load can withstand light valve flap, flap valve lift is not high.
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。
Check them Safety Valves belonging to this type of valve, which includes Swing check valve and lift check valve.
旋转式止回阀也可以安装在垂直位置，此时阀瓣应该无法达到阀门的位置。
The swing check valve can also be mounted to the vertical position, provided the disc should not reach the valve position.
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。
Describe the structure characteristic and working principle of pressure seal swing check valve. Material selection and thrust ring design.
蝶型止回阀占用空间最小，还有旋启式止回阀，则适用于包含颗粒或碎片的流体。
Butterfly Check Valves have minimum space requirements and, along with Swing Check Valves, are better for use with fluids containing solids or debris.
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。
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.
这使得我们的旋启式止回阀无论安装在水平管道还是垂直管道上，都能够实现完全的关闭。
This allows our swing check valve to close completely even when installed in a horizontal pipe run with no flow.
进水口的安装需要使用一个品质优良的底阀，以避免进水口压力损失-拆除内置式止回阀。
Installations with suction lift require a good quality foot valve to avoid loss of prime - remove in-built check valve.
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.
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。
Note: On pump discharge, the preferred check valves are an in-line spring loaded, swing design with lever and weight or lever and spring.
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。
Certain system configurations involving direct connection of a Swing Check Valve to other flanged equipment may require consideration of this bolt clearance.
旋启式止回阀压降最小，能够完全自动关闭，即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。
Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
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。
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.
由于这种止回阀能够在重力和介质倒流撞击启闭件之前关闭阀门，因此这种直通弹簧驱动升降式止回阀也称为“静音”止回阀。
The in-line spring-actuated lift check also is referred to as the "silent check" because the spring closes the valve before gravity and fluid reversal can slam the valve closed.
如果安装在防火喷淋系统上，所有机械式止回阀，如警告止回阀和防回流阀，都应该根据美国国家消防协会NFPA13和NFPA25标准进行流量测试和内部检查。
If installed on a fire sprinkler system, all mechanical checks, such as alarm checks and backflow preventers, should be flow tested and inspected internally in accordance with NFPA 13 and NFPA 25.
翻转式阀瓣止回阀由圆柱形外壳及转动圆盘阀瓣构成。
Tilting disc Check Valves consist of a cylindrical housing, with a pivoted circular disc.
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。
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。
NOTE: On pump discharge, the preferred check valves are an in-line spring loaded, swing design with lever and weight or lever and spring.
对自力式限流止回阀，在分析其结构和工作原理的基础上，提出了选型方法。
With regard to flux control and check valve, based on its structure and work principle, presented the method of type selection.
本文详细研究了悬挂式缓闭减水锤止回阀在事故停泵期间的特性以及由停泵所引起的流体瞬变效应与阀的减水锤效果。
The characteristics of closing check valves with hanged reducing water - hammer, and the effects of fluid transient during power cut are studied in this paper.
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。
NOTE: 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。
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。
On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.
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