译文：
计量泵管路系统常见问题及解决方法： 一、计量泵管路系统常见问题： 1、问题一：计量泵出口没有压力的情况下，泵的实际流量比额定流量大很多，而且调节流量时，流量基本没有变化。 2、问题二：开泵后，出口管路震动比较厉害。 二、计量泵管路系统的解决方法： 1、问题一的解决方法：在计量泵出口增加背压阀,背压阀在稳定管路压力的同时，可以稳定计量泵的流量，保证计量精度。 2、问题二的解决方法：在计量泵出口安装脉冲阻尼器（如果计量泵出口没有压力，{zh0}和背压阀同时使用）；排出端流体由于惯性阻力，在泵运行开始瞬间，会对管路产生脉动撞击力。这是往复式泵的特有现象，是由于管道内液体受到突然加速而引起的。脉冲阻尼器能够有效防止脉冲引起的管路震动。

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原文：
Metering pump piping systems common problems and solutions: 1, metering pump piping system FAQ: 1, issue 1: measurement of the pressure pump outlet is not the case, the actual flow pump is much bigger than the rated flow, but also regulates the flow, the flow rate unchanged. 2, issue 2: Open the pump, the more powerful of pipeline vibration. 2, metering pump piping system solution: 1, the problem of a solution: increase the back pressure in the measurement of pump discharge valve, back pressure valve in a stable pipeline pressure, can stabilize the flow metering pump to ensure the measurement accuracy. 2, issue 2 solution: install the metering pump pulse damper (if no pressure metering pump, the best and the back pressure valve at the same time use); discharge end of fluid inertia resistance moment in the pump started to run, would control Road pulsating impact force. This is a unique phenomenon of reciprocating pump is due to the liquid inside the tubes caused by sudden acceleration. Pulse pulse damper can effectively prevent the vibrations caused by the pipeline.