多段式阀芯型阀门适合于在极其苛刻的工况条件下对高温、高压或高压差液体的精确控制。能防止液体产生空化气蚀、减少高速流体对阀内件的冲刷、降低噪音；尤其适合于对含有杂质或固体颗粒流体的控制。由于具有使作用在阀芯上的流体压力平衡的结构，因此只须用较小的操作力便可达到稳定调节，能够承受较高的工作压差。

Multi-step plug control valves provide smooth and accurate capacity control of high pressure drop liquids without cavitation, erosion, vibration and high noise levels compare with single seated valves. It is particulary suited for appications invovling fluids with entrained particles. This series is characterized by pressure balanced type trim for very high pressure drops.