REMOTE CONTROLLED HYDRAULIC CONTROL VALVE

							             REMOTE CONTROLLED HYDRAULIC CONTROL VALVE – RC




Description:

Dorot “RC” model valve is a hydraulic control valve operated by line pressure or
pneumatic pressure (if desired). It is used for opening / closing process in
applications from which electric source, control device, control pressure etc. is far
away.

Features:

      It is closed as fully sealed without causing surge thanks to its flexible
       diaphragm.
      It performs easy and fast controlling function even in high pressure lines
       thanks to 3-way hydraulic relay mounted on valve.
      It may be used in different applications by adding different pilot valves on main
       valve body.

Installation:

      Make sure that valve is on a level with the pipeline while mounting it.
      Mount valve in direction of arrow indicated on it.
      While connecting valve on pipeline, place gasket between valve flange and
       pipe flange to ensure sealing and tighten the bolts as crosswise.
      Determine diameter of hydraulic pressure pipe which ensures operating
       control of valve according to distance from other energy sources or consult our
       technical department.
      It is recommended that insulation valves (butterfly or gate valves etc.), air relief
       valve and strainer valves will be used in line-mounting of valve (see sample
       montage illustration).
Adjustment:

      Open ball valve indicated with “b1”.
      Select set point by means of 3-way selector valve indicated with “a” on valve.
      Valve is open in “Open” position and closed in “Close” position.
      Bring 3-way selector valve indicated with “a” into “auto” position and connect
       hydraulic pipe to “auto” port.

Maintenance:

      Check finger filter on valve upstream according to water quality.
      Drain water within actuator and pilot valves of valves not used in winter.




TROUBLESHOOTING

 FAILURE                       CAUSES                          CORRECTING/REPAIR
                  Line pressure may be low.            Check upstream pressure and
                                                         ensure required upstream
                  3-way selector valve may be           pressure.
Valve not          closed.                              Check selector valve. Bring valve
opening                                                  into “Open” position.
                  3-way selector valve may be          Check 3-way valve and clean it.
                   clogged.
                  Diaphragm may be punctured.          Check diaphragm and replace with
                                                         the new one if it is punctured.
                  Foreign substances may exist         Check diaphragm seat and
Valve not          in diaphragm seat.                    remove foreign substances if any.
closing
                  3-way selector valve may be          Check selector valve. Bring valve
                   closed.                               into “Close” position.

                   3-way selector valve may be         Check 3-way valve and clean it.
                   clogged..