原文：
　　背压阀使用时的注意事项： 　　1、 避免与系统发生共振。 　　2、 与脉动阻尼器同时使用时，脉动阻尼器应安在泵与背压阀间，以吸收泵与背压阀间的流量峰值。减缓背压阀的磨损速度。 　　3、 室外使用应加防护棚或防护罩。 　　4、 对背压阀进行任何维护以前，应停止运转设备，释放压力，关闭背压阀与系统相联的阀门，同时确认脉动阻尼器内没有压力。维修时注意防止被输送液体伤害人体。 　　5、 若背压阀进出口接反，背压将会成倍增加，给系统带来危害并可能发生危险。阀门 进口泵 工业洗衣机 　　6、 运转中发现背压阀发生故障应及时切断电源。 　　7、注意：对背压阀进行任何维护以前，应停止运转设备，释放压力，关闭背压阀与系统相联的阀门，同时确认脉动阻尼器内没有压力。维修时注意防止被输送液体伤害人体。

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译文：
Back-pressure valve use the attention of: 1, to avoid system resonance. 2, used in conjunction with the pulsation damper, the pulsation damper to be safe and back pressure valve in the pump room to absorb the pump and back pressure valves, flow peak. Reduce the wear rate of back pressure valve. 3, added protection for outdoor use should be shed or protective cover. 4, on the back-pressure valve prior to any maintenance, equipment operation should be stopped, release the pressure, close the back pressure valve valve associated with the system, while recognizing that there is no pressure pulsation damper. Maintenance, pay attention to prevent harm to human transmission fluid. 5, if the back-pressure valve counter-export access, back pressure will be doubled, bringing harm to the system and may be dangerous. Imports of industrial washing machine pump valve 6, running back-pressure valve malfunction discovered in time to cut off power supply. 7 Note: The back-pressure valve prior to any maintenance, equipment operation should be stopped, release the pressure, close the back pressure valve valve associated with the system, while recognizing that there is no pressure pulsation damper. Maintenance, pay attention to prevent harm to human transmission fluid.