In general a minimum of 10 pipe diameters of straight pipe should be provided upstream of a swing check valve to minimize adverse conditions 通常，旋启式止回阀与上游部件的距离至少要有管道直径的10倍，这样才能够将反作用降到最小程度。
Interference may also occur when butterfly valves are bolted directly to the outlet flange of a swing check , silent check , or reducing flange 当蝶阀直接通过螺栓连接到旋启式止回阀、静音止回阀或缩径法兰的外法兰上时，也可能发生阀瓣受到影响的情况。
If swing or tilting disc check valves are located within 10 pipe diameters from elbows or pumps , other means to divert / minimize flows are necessary 如果旋启式或翻转式止回阀被安装在距离弯头或泵十倍管道直径内的位置，则必须采用其他方法转移或减小流量。
Locating swing check valves away from elbows , equipment , etc . , within the piping system can often minimize or eliminate problems caused by this type of application 旋启式止回阀应该安装应该远离弯头等其它设备，这样通常可以减少或消除这些设备可能产生的问题。
Swing check valves can be adversely affected by turbulence if placed too closely to other piping components such as pumps , control valves , meters , reducers , tees , elbows , etc 如果过于靠近其它管道部件，如泵，控制阀，仪表，收缩管，三通，弯管，等等，旋启式止回阀可能会被湍流反作用。
Velocity equations are included in the technical data section . when sizing swing check valves , the seat port velocity should be controlled within the general ranges specified below 《技术资料》内包括流速公式。在选择旋启式止回阀的通径时，阀座端口的流速应该控制在下列指定的一般范围内。
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。
For best performance swing check valves should operate with fluid velocity sufficient to hold the disc in a stable position off the seat or fully open against the disc stop 为了获得最好的性能，旋启式止回阀应该运行在流量速度足够将阀瓣稳定支撑在离开阀座的位置，或让阀瓣停止在全开的位置。
Tilting disc check valves are similar to swing check valves . in most installations , slamming is minimized upon reversal of flow so noise and vibration are reduced 翻转式阀瓣止回阀与旋启式止回阀类似。对于大多数安装的翻转式阀瓣止回阀，由于流体倒流造成的撞击程度最小，因此噪音和振动也有所减小。
Threaded seat rings are easily accessible for repair or replacement . packing swing bolts on most valves simplify packing replacement . all pacific bolted bonnet designs facilitate fast disassembly 螺纹阀座环易于接近进行维修或更换。大多数阀门上的填料旋启式螺栓简化了填料的更换。所有美国太平洋螺栓阀盖结构使得拆卸更加迅速。
