具有上述特性的阀门，在接近阀瓣的动作加速，易发生水锤的冲击，接近全闭时，阀门动作越缓慢越好，于是可在阀瓣上设置节流装置。先导阀的节流和动作部分要尽量避免设置特小口径的孔口，以免堵塞。必要时要加过滤网，定期检修及设置旁通管路。
湾安颂ANSON大陆办事处 台湾安颂ANSON叶片泵 台湾安颂ANSON油泵
台湾安颂ANSON低压变量叶片泵PVF有如下型号：
PVF-8-70-10S PVF-8-35-10S PVF-8-55-10S PVF-8-20-10S
PVF-8-70-10 PVF-8-35-10 PVF-8-55-10 PVF-8-20-10
PVF-12-70-10S PVF-12-35-10S PVF-12-55-10S
PVF-12-20-10S PVF-12-70-10 PVF-12-35-10
PVF-15-70-10S PVF-15-35-10S PVF-15-55-10S
PVF-15-20-10S PVF-15-70-10 PVF-15-35-10
PVF-15-55-10 PVF-15-20-10
PVF-20-70-10S PVF-20-35-10S PVF-20-55-10S PVF-20-20-10S
PVF-20-70-10 PVF-20-35-10 PVF-20-55-10 PVF-20-20-10
PVF-30-70-10S PVF-30-35-10S PVF-30-55-10S PVF-30-20-10S
PVF-30-70-10 PVF-30-35-10 PVF-30-55-10
PVF-30-20-10 PVF-30-55-10S PVF-30-20-10S
PVF-40-70-10S PVF-40-35-10S PVF-40-55-10S PVF-40-20-10S
台湾安颂ANSON大陆办事处 台湾安颂ANSON叶片泵 台湾安颂ANSON油泵
台湾安颂ANSON变量叶片泵：
VP5F-A2-50 VP5F-A2-50S VP5F-A3-50
VP5F-A3-50S VP5F-A4-50 VP5F-A4-50S
VP5F-A5-50 VP5F-A5-50S VP5F-B2-50
VP5F-B2-50S VP5F-B3-50 VP5F-B3-50S
VP5F-B4-50 VP5F-B4-50S VP5F-B5-50 VP5F-B5-50S
台湾安颂ANSON大陆办事处 台湾安颂ANSON叶片泵 台湾安颂ANSON油泵
台湾安颂ANSON/台湾弋顺ESHINE油泵,变量双联叶片泵PVDF系列*
PVDF-370-370-10 PVDF-355-355-10
PVDF-335-335-10 PVDF-320-320-10
PVDF-470-470-10 PVDF-455-455-10
PVDF-435-435-10 PVDF-420-420-10
PVDF-370-370-10S PVDF-355-355-10S
PVDF-335-335-10S PVDF-320-320-10S
PVDF-470-470-10S PVDF-455-455-10S
PVDF-435-435-10S PVDF-420-420-10S
水力控制阀分隔膜型和活塞型两类，工作原理相同，都是以上下游压力差为动力，有导阀控制，使隔膜(活塞)液压式差动操作，完全由水力自动调节，从而使主阀阀瓣完全开启或完全关闭或处于调节状态。