PROPORTIONAL ONLY CONTROLLER TUBING & NOZZLE POSITIONS, APPLIES TO FISHER 4150K/KR, MALLARD 3350D/3350R & NORRISEAL 4700 & 4900
RELAY TUBING
PROPORTIONAL TUBING
REVERSE ACTING REVERSING BLOCK SCREW
NOTE: LOWER POSITION USED
NOZZLE NOTE: BELOW FLAPPER
BELLOWS
(INCREASE IN SENSING LINE PRESSURE RESULTS IN DECREASED OUTPUT SIGNAL OR DECREASE IN SENSING LINE PRESSURE RESULTS IN INCREASED OUTPUT SIGNAL)
REVERSING BLOCK
FLAPPER
RELAY TUBING
PROPORTIONAL TUBING
DIRECT ACTING REVERSING BLOCK
NOTE: UPPER POSITION USED
NOZZLE NOTE: ABOVE FLAPPER
(INCREASE IN SENSING LINE PRESSURE RESULTS IN INCREASED OUTPUT SIGNAL OR DECREASE IN SENSING LINE PRESSURE RESULTS IN DECREASED OUTPUT SIGNAL)
BELLOWS
REVERSING BLOCK SCREW
FLAPPER Courtesy of
LEGEND: P ~ PROPORTIONAL BELLOWS X ~ NO PRESSURE
Bossier City, La. 71112
(800) 523-4055