Pattern Control; Flushing Debris - Task Force Tips MASTER FOAM Instructions For Safe Operation And Maintenance

200
175
150
125
100
75
50
25
0
0

2.3 PATTERN CONTROL

The MASTER FOAM
stream shaper clockwise (as seen from the operating position behind the nozzle -see figure 2.3) moves the
shaper to the straight stream position. Turning the shaper counterclockwise will result in an increasingly wider
pattern. Only 90 degrees of rotation is required to go from wide fog to straight stream.
Since the stream trim point varies with flow, the stream should be "trimmed" after establishing a steady flow. To
properly trim the stream, first open to a narrow fog. Then close the stream to parallel to give maximum reach.
NOTE: Turning the shaper further forward will cause stream crossover and reduce the reach of the nozzle.
Wide
Fog

2.4 FLUSHING DEBRIS

Small debris in the water may get caught inside the nozzle. This trapped material will cause poor stream quality,
shortened reach and reduced flow. To remove debris trapped in the nozzle:
• Shut off flow to the nozzle.
• Unscrew baffle (see figure 2.3) using 1-1/8 inch (28mm) socket.
• Remove debris. Flow water to flush if necessary.
• Reinstall baffle. Tighten to approximately 30 ft-lbs (40 Newton-Meters).
WARNING
Larger debris can get caught in the nozzle ahead of the cast vane. If this occurs uncouple the nozzle to clear
the blockage.
4
350 GPM
100 200 300 400
FLOW (GPM)
MASTER FOAM
Fig 2.1
's spray pattern is adjustable from straight stream to a 90 degree wide fog. Turning the
Fig 2.3 Pattern Control and Flushing
Large amounts of debris may be unflushable and can reduce the flow of
the nozzle resulting in an ineffective flow. In the event of a blockage, it may
be necessary to retreat to a safe area.
500 GPM
750 GPM
500 600 700 800
Flows
Straight
Stream
OPERATING RANGE:
150 PSI MAXIMUM
50 PSI MINIMUM
BURST PRESSURE
IS 1000 PSI
900 1000
Remove baffle to flush
1-1/8" (28mm) socket
TASK FORCE TIPS • 800.348.2686 • www.tft.com
tighten to 30 ft-lbs
(40 newton-meters)