◆ HYDRAULIC CONTROL DEVICE OF BALLAST SYSTEM
  
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【 GENERAL 】

   Pilot flat valve used for draining ballast water in the water ballast tank, changed hydraulic controlled from mechanical controlled. The product is in simple construction, convenience maintenance, and assembled with barrow. When part of pilot device was failure, connecting the outlet of emergency joint of hydraulic part, the flat valve can be opening draining。

【 PRINCIPLE AND ELEMENT】

   1.手轮    2.操作批示牌    3.透气螺塞    4.行星齿轮部分    5.注油孔
   6.柱塞泵   7.溢流阀      8.液控单向阀   9.单向阀       10.应急接口
   11.自闭阀

【 PRINCIPLE 】

   Turning hand wheel clockwise, hydraulic oil drawn out from oil tank by two-way gear pimp. One way through check valve 3 enters oil cylinder upper part, then pushing plunger down, so that closing flat valve. Another way enters hydraulic check valve and pushing it, so that hydraulic oil in the cylinder returned back; turning hand wheel counter clockwise, hydraulic oil enters cylinder under part, plunger upper, so that flatvalve can be opened。

   ELEMENT a.Manual Hydraulic Actuator
       b.Hydraulic surface valve
       c.Hand pump

【 LECTOTYPE AND MARK FOR EXAMPLE 】

   HYDRAULIC SURFACE CALVE JZ-PMF200