该增压阀的显著特色在于：是靠泵源压力促进增压器与液动换向阀间彼此断定方位，相应消除了连杆传动运动和反转运动，从而使该阀到达简练有用，并可依此原理构成一种主动往复油缸，有利于将液压传意向化繁为简，SMC增压阀,SMC增压阀工作原理节能降耗方向开展。
输入的气压分两路：一路充入增压室A和B；另一路向驱动室B充气， 驱动室A排气。 大活塞左移，带动小活塞左移，增压室B增压 小活塞走到头，换向阀切换，驱动室A进气，驱动室B排气 大活塞反向运动，增压室A增压。
VCA20-12-1A VCA21-1G-3-02 VCA21-2G-3-02 VCA21-3D-3-02 VCA21-3D-5-02 VCA21-3DL-3-02 VCA21-3G-3-02 VCA21-3GB-3-02 VCA21-4D-3-02 VCA21-4D-5-02 VCA21-4D-5-02N VCA21-4DL-3-02 VCA21-4DLB-5-02 VCA21-4G-3-02 VCA21-4G-5-02 VCA21-4GB-3-02 VCA21-4GB-5-02 VCA21-5D-3-02 VCA21-5D-5-02 VCA21-5DL-3-02 VCA21-5DL-5-02 VCA21-5DLB-5-02 VCA21-5G-3-02 VCA21-5G-302X54 VCA21-5G-5-02 VCA21-5G-5-02F VCA21-6G-3-02 VCA21-6G-5-02 VCA21A-3G-3-02 VCA21A-4D-3-02 VCA21A-4D-5-02 VCA21A4G302FX15 VCA21A-4G-5-02 VCA21A4G502FX15 VCA21A-5D-5-02 VCA21A-5DLB-502 VCA21A5G302FX15 VCA23-1G-3 VCA23-4G-5 VCA23-4GB-5 VCA23-5D-5 VCA23-5DL-3 VCA23-5G-3 VCA23-5GB-3-X63 VCA23A-1TL-5 VCA23A-5DL-3
VCA27A-1DLS-402 VCA27A-2DL-402Q VCA27A-50DLS402 VCA27A-5DL-402Q VCA27A-5DLK402Q VCA27A-5DLS-402 VCA27A-5DLS402Q VCA30-12-1A VCA31-1DL-4-02 VCA31-1G-4-02 VCA31-1G-4-03 VCA31-1G-7-02 VCA31-2G-4-03 VCA31-3D-4-02 VCA31-3D-7-03 VCA31-3G-4-03 VCA31-4D-4-03 VCA31-4D-7-03 VCA31-4DL-4-02 VCA31-4DLB-4-02 VCA31-4DLB-4-03 VCA31-4G-4-003 VCA31-4G-4-02 VCA31-4G-4-03 VCA31-4G-7-03 VCA31-4GB-4-03 VCA31-4GB-7-03 VCA31-5D-4-02 VCA31-5D-4-03 VCA31-5D-7-02 VCA31-5D-7-03 VCA31-5DB-7-02 VCA31-5DB-7-03 VCA31-5DL-4-02 VCA31-5DL-4-03F VCA31-5DL-7-02F VCA31-5DL-7-03 VCA31-5DLB-4-02 VCA31-5DLB-4-03 VCA31-5DLB-702F VCA31-5G-4-02 VCA31-5G-4-02F VCA31-5G-4-03 VCA31-5G-7-02 VCA31-5G-7-03 VCA31-5TL-4-02F VCA31-6G-4-02 VCA31-6G-7-02 VCA31-9G-402X18 VCA31A-2D-4-02 VCA31A-2D-7-03 VCA31A-4D-7-03 VCA31A-5DL-402F VCA31A-5DL-7-03 VCA31A-5DLB402N VCA31A-5G-4-02 VCA31A-5G-7-03N VCA31A-5TL-402F VCA35-5DL-403X5 VCA40-12-1A VCA41-2D-10-06 VCA41-2G-5-04 VCA41-2G-5-04F VCA41-3DB-10-06 VCA41-3DL-7-04 VCA41-3G-10-04 VCA41-3G-10-06
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