©Copyright Task Force Tips LLC 2020
8
LIM-027 December 15, 2020 Rev00
4.0 FLUSHING DEBRIS
Small debris may get caught inside the nozzle. This trapped material will cause poor stream quality, shortened reach and reduced flow.
To remove this trapped debris, the manual nozzle can be flushed as follows:
1. While still flowing water, turn the SHAPER counterclockwise past the full fog position, allowing debris to pass through. Increased
resistance will be felt on the SHAPER as the nozzle goes into flush.
2. Rotate the SHAPER clockwise and out of flush to continue normal operation.
Electric Remote Nozzles are flushed from the control panel by pushing the FOG button twice. Smart Stream controls both stream shape
and flush. Requiring a second button push avoids unintentional flush.
To Flush an Electric Remote Nozzle:
1. While flowing water, push and hold FOG to move the nozzle to full fog.
2. Push the FOG button a second time to move the nozzle to flush by increasing the opening size further than the largest flow
position.
3. Push the STRAIGHT STREAM button to return the nozzle to normal flow and adjust the stream shape as desired.
During flush the nozzle reaction will decrease as the pattern becomes wider and the pressure drops. The nozzle operator must be
prepared for an increase of nozzle reaction when returning the nozzle from the flush position to maintain stable operation of portable
monitors.
5.0 USE WITH FOAM
The nozzle may be used with foam solutions. Refer to fire service training by the Authority Having Jurisdiction (AHJ) for the proper use
of foam.
5.1 FOAM ASPIRATING ATTACHMENT
A low expansion aspirating attachment may be used with nozzles to increase the expansion ratio. These foam tubes attach and detach
quickly from the nozzle. As expansion ratio is increased, the reach of the nozzle will decrease due to the greater amount of bubbles in
the stream and their ability to penetrate the air. Generally, the straight stream reach with foam is approximately 10% less than with water
only. Actual results will vary based on brand of foam, hardness of water, temperature, etc. For specific information, see LIA-025
(MANUAL: Foam Attachments for TFT Nozzles).
6.0 FLOW CHARACTERISTICS
6.1 FLOW CHART
Within its flow range, the Master Force automatic nozzle operates at the nominal pressure of 100 PSI (7 BAR, 700 KPA). The following
chart shows the typical performance of this nozzle.
WARNING
Large amounts or pieces 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, uncouple the nozzle and remove debris.
WARNING
For Class B fires, lack of foam or interruption in the foam stream can cause a break in the foam
blanket and greatly increase the risk of injury or death. Follow procedures established by the AHJ
for the specific fuel and conditions.
WARNING
Improper use of foam or using the wrong type of foam can result in illness, injury, or damage to the
environment. Follow foam manufacturer’s instructions and fire service training as directed by the
AHJ.
