译文：
水力控制阀就是水压控制的阀门，水力控制阀由一个主阀及其附设的导管﹑导阀﹑针阀﹑球阀和压力表等组成。根据使用目的﹑功能及场所的不同可演变成遥控浮球阀﹑减压阀﹑缓闭止回阀﹑流量控制阀﹑泄压阀﹑水力电动控制阀、水泵控制阀等。 水力控制阀前要安装过滤器，并应便于排污的要求。 水力控制阀是一种利用水自润式阀体，无须另加机油润滑，如遇主阀内零部件损坏时，请按下列指示进行拆卸。（注：内阀内一般消耗损伤品为膜片和○型圈，其它内部零件损伤甚少） 1.先将主阀前后端闸阀关闭。 2.将主阀盖上的配管接头螺丝松开,释放阀内压力。 3.将所有螺丝取下，包括控制管路中的必要铜管的螺帽。 4.取阀盖和弹簧。 5.将轴芯、膜片、活塞等取下，切勿损伤膜片。 6.将以上各项东西取出后，检查膜片及○型圈是否损坏；如无损坏请勿再分自行争其内部零件。 7.如发现膜片或○型圈有损坏，请将轴芯上的螺帽松脱，逐浙分解出膜片或型圈，取出后重新换上新的膜片或○型圈。 8.详细检视主阀内部阀座、轴芯等是否有损坏，若有其它杂物在主阀内部将其清理出。 9.依反向是顺序将更换后的零部件组合装好主阀，注意阀门不能有卡阻现象。

“ Characteristics of hydraulic control valves repair and maintenance ”是由提供的国际阀门新闻，译文仅供参考。另外，中国气动阀门网还提供相关产品搜索：、、、、等。

原文：
Hydraulic control valve is pressure-controlled valve, hydraulic control valve consists of a main valve and pilot valve attached to the catheter ﹑ ﹑ ﹑ needle valve and pressure gauges and other components. According to such purpose, function and use of the different sites can be turned into a floating ball remote control valve ﹑ ﹑ ﹑ relief valve flow control valve closed pressure relief valve ﹑ ﹑ electric hydraulic control valve, pump control valves. Hydraulic control valves to be installed before the filter, and should facilitate the discharge requirements. Hydraulic control valve is self-lubricating by means of a water body without additional lubrication oil, the main valve parts in case of damage, please follow the instructions to demolition. (Note: the general consumption of injury within the valve products for the diaphragm and ○-ring, very little damage other internal parts) 1. First valve before and after the end of the main valve closed. 2. The main valve fittings with screw lid release, pressure release valve. 3. Will remove all the screws, including the control of the necessary copper piping in the nuts. 4. Take valve cover and spring. 5. The shaft, diaphragm, piston, etc. removed, do not damage membranes. 6. After removing the above stuff, check diaphragm and ○-ring is damaged; Do not be divided without damage to the internal parts on their own struggle. 7. If found ○ diaphragm or ring is damaged, please loose nut on the shaft, it gradually decomposed patch or ring, remove and replace the new patch or re-○-ring. 8. Details View inside the main valve seat, shaft, etc. for damage, if other debris within the main valve to clean out. 9. By the reverse is the order of replacement parts after the combination of bottles and the main valve, the valve can not have jamming attention to the phenomenon.