節流閥前、后的壓力分別引到減壓閥閥芯右、左兩端，當負載壓力增大，于是作用在減壓閥芯左端的液壓力增大，閥芯右移，減壓口加大，壓降減小，從而使節流閥的壓差保持不變；反之亦然。這樣就是調速閥的流量恒定不變（不受負載影響）。調速閥也可以設計成先節流后減壓的結構。

DCF-Y-50S淹沒式脈沖閥脈沖閥廠家,wena電磁脈沖閥

DCF-Y-62S淹沒式脈沖閥脈沖閥廠家,wena電磁脈沖閥

DCF-Y-76S淹沒式脈沖閥脈沖閥廠家,wena電磁脈沖閥

DMY-II-80淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DMF-Y-76S淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DMF-Y-62S淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DMF-Y-50S淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

MCF-25DD外螺紋電磁脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DCF-ZM-25外螺紋電磁脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DCF-ZM-40S外螺紋電磁脈沖閥,脈沖閥廠家,wena電磁脈沖閥

DMF-ZM-25外螺紋電磁脈沖閥,脈沖閥廠家,wena電磁脈沖閥

MCF-76S，MCF-62S直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

MCF-50S，AMF-40直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

AMF-Z-20A,AMF-Z-25J直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

AMF-Z-25,AMF-Z-20直角式脈沖閥,脈,脈沖閥廠家,wena電磁脈沖閥沖閥廠家,wena電磁脈沖閥

AMF-62,MCF-45DD直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

SYKL89淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

RMF-Z-15P,RMF-Z-20A直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

RMF-Z-40S,RMF-Z-50S直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

RMF-Z-62S,RMF-Z-76S直角式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

RMF-Y-40S,RMF-Y-50S淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥

RMF-Y-62S,RMF-Y-76S淹沒式脈沖閥,脈沖閥廠家,wena電磁脈沖閥