Correct sizing of stop - check valves is important 截流止回阀的通径正确计算选择非常重要。
Stop - check valves are best suited for low to moderate velocity applications 截流止回阀最适用于低流速或中流速应用环境。
Globe pattern stop - check valves can be used in horizontal piperuns with the stem straight up 截止阀类型的节流止回阀可以用在水平管道上,阀杆垂直向上。
Stop - check valves should be located as far away from equipment such as pumps and compressors as possible 截流止回阀应该安装在离泵和压缩机尽可能远的地方。
Note that stem load is applicable to gate valves only as this force is included in the seating force of globe and stop - check valves 注意,阀杆负载只适用于闸阀,因为截止阀和截止止回阀的阀座力包含了阀杆负载。
Suspected problem systems should be reviewed with pacific valves before selecting and purchasing stop - check valves 如果怀疑系统可能有问题,则在选型和订购截流止回阀之前,应该与美国太平洋阀门公司一起重新审核管道系统。
Its use offers a simple method of determining the best size of stop - check valve , as well as the pressure drop under varying conditions of flow , without any computation 它提供一个简单的方法来确定最适合的截止止回阀通径,以及不同流体状况下的流体压降,不需要任何的计算。
See pages 3 through 7 for reference data to be used with pacific gate , globe and stop - check valves to determine thrust , torque and rimpull for a particular application 参阅第3页至第7页,了解与测定美国太平洋闸阀、截止阀和截止止回阀的推力、扭矩和边缘拉力相关的参考数据。
Valves may be sized to match existing lines , but swing check and stop - check valves should also be sized according to flow conditions for maximum service life 可以根据现存的相匹配的管线来确定阀门通径,但是旋启式止回阀和截止止回阀还应该根据最大限度延长使用寿命的流体状况来确定阀门通径。
Since stop - check valves have a floating disc member , it is important the valve be sized to provide full disc lift under flow conditions prevailing during the major portion of the service life 由于截止止回阀具有一个浮动阀瓣构件,因此重要的是要确定在平常的流体环境下及阀门的使用寿命期限内,能够为阀瓣提供足够提升力的通径。