用以保持止动环的槽。
合适的止动环见产品表，包括型号和尺寸，可单独提供或安装在轴承上一起提供。
Appropriate snap rings are shown in the product table with designation and dimensions and may be supplied separately or already mounted on the bearing.
就位接头与止动环用螺纹联结并上紧扣和钻柱连接下入井内，在未投入止回阀时作为钻柱上的一个接头。
The landing is thread connected with stop ring and tightened on and put into downhole with drill string. The landing sub is used as a sub above drill string before check valve is run in downhole.
止动槽和紧邻的倒角（图20）尺寸符合1995年的ISO464标准，该标准还规定了适当的止动环尺寸。
The dimensions of the snap ring groove and of the chamfer adjacent to the groove (fig 20) are in accordance with ISO 464:1995, which also specifies suitable snap ring dimensions.
一旦确定正确的流量设置，则将记忆止动装置朝着指示器板的开启位置顺时针方向旋转，直到记忆止动环触到指示器板为止。
Once correct flow rate setting has been established, slide memory stop clockwise towards open side of indicator plate until memory stop ring hits indicator plate.
一旦确定正确的流量设置，则将记忆止动装置朝着指示器板的开启位置顺时针方向旋转，直到记忆止动环触到指示器板为止。
Once correct flow rate setting has been established, slide memory stop clockwise towards open side of indicator plate until memory stop ring hits indicator plate.
应用推荐