A FOKKER 100 WITH A DEFERRED R WING REFUELING VALVE WAS DISPATCHED IN NON COMPLIANCE. MEL PROCS REQUIRE OVER THE WING FUELING.

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I WAS ASSIGNED TO ASSIST THE FUELER WHO WAS FUELING THE ABOVE FLT; AS THERE WAS A PLACARD ON THE UNDER-WING PRESSURE-FUELING PANEL. I WAS FAMILIAR WITH THE PROB; AS THE ACFT HAD BEEN COMING THROUGH ZZZ LIKE THIS FOR SEVERAL DAYS. THE R-HAND FUEL VALVE WOULD NOT CLOSE WITH FUEL FLOWING THROUGH IT. IT OPENED NORMALLY WHEN PWR WAS TURNED ON; AND WOULD CLOSE WHEN PWR WAS SHUT OFF IF THERE WAS NO FUEL FLOW. THE PROC THAT I USED IS THE ONE THAT I WAS TRAINED TO USE OVER MY CAREER. I STARTED FUELING THE UNAFFECTED WING FIRST AND GOT SEVERAL HUNDRED LBS OF FUEL AHEAD OF THE AFFECTED WING. I THEN OPENED THE R WING AND STARTED ADDING FUEL; BEING CAREFUL NOT TO LET THE L WING GET SO FAR AHEAD THAT THE ACFT WOULD BE OUT OF BAL. THIS ALLOWED ME TO FUEL THE L WING TO THE REQUIRED LOAD AND SHUT IT OFF BEFORE THE R WING REACHED THE REQUIRED LOAD. WHEN THE R WING REACHED THE REQUIRED LOAD; I RELEASED THE DEAD MAN AND STOPPED FUEL FLOW. I THEN SHUT OFF THE PWR TO THE SWITCH AND OBSERVED THE LIGHTS GO ON INDICATING THE VALVE WAS CLOSING. TO INSURE THAT THE VALVE HAD CLOSED; I ACTIVATED THE DEAD MAN TO START FUEL FLOW. IF THE VALVE IS CLOSED; THERE IS NO FUEL FLOW; BUT DUE TO THE FACT THAT THE TRUCK IS TRYING TO MOVE FUEL THE HOSE PRESSURIZES. THE HOSE GETS NOTICEABLY HARD AND THE NOZZLE PRESSURE GAUGE ON THE TRUCK SHOWS THE PRESSURE BUILD-UP. IF THERE WERE FUEL FLOW; THE TRUCK METER WOULD MOVE DUE TO THE FUEL FLOW AND THERE WOULD NOT BE A STATIC PRESSURE BUILD-UP ON THE NOZZLE. IF THE VALVE DID NOT CLOSE; I WOULD CALL ACFT MAINT TO MANUALLY CLOSE THE VALVE; BUT THAT WAS NOT REQUIRED ON THIS OCCASION.