©Copyright Task Force Tips, Inc. 1998 - 2009
LIM-035 June 15, 2009 Rev07
4
2.2 VARIOUS MODELS AND TERMS
See fi gures 1A, 1B and 1C for views of the ZN, ZM and Masterstream nozzles. The Masterstream Series Nozzle is available without
halo ring. See catalog for model numbers and details.
Threaded Inlet
Stream Shaper / Bumper
Baffle
ZN NOZZLE
FIG 1A - ZN Nozzle
Halo Ring
Coupling
Stream Shaper / Bumper
Flow
Selector
Jam Nut
Baffle
FIG 1B - Masterstream 1000
Selectable Gallonage Nozzle
FIG 1C - Masterstream 1000
Fixed Gallonage Nozzle
2.3 PATTERN CONTROL
TFT’s ZN, ZM and Masterstream nozzles have full pattern control from straight stream to wide fog. Turning the stream shaper
clockwise (as seen from the operating position behind the nozzle) moves the shaper to the straight stream position. Turning the
stream shaper counterclockwise will result in an increasingly wider pattern.
Since the stream trim point varies with fl ow, the stream trim point should be “trimmed” after changing the fl ow to obtain the straightest
and farthest reaching stream. To properly trim a stream, fi rst open the pattern to 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 effective reach of the
nozzle.
Note: Masterstream models are also available with linear (push/pull), remote electric or hydraulic actuation of the stream shaper.
2.4 USE WITH FOAM
The ZN, ZM and Masterstream nozzles may be used with foam solutions. Refer to fi re service training for the proper use of foam.
WARNING
For Class B fi res, 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. Assure that: Application rate is suffi cient (see NFPA 11
or foam manufacturer’s recommendations); Enough concentrate is on hand to complete task (see NFPA
for minimum duration time requirements); Foam logistics have been carefully planned. Allow for such
things as: Storage of foam in a location not exposed to the hazard it protects; Personnel, equipment
and technique to deliver foam at a rapid enough rate; Removal of empty foam containers; Keeping clear
path to deliver foam as hoses, other equipment and vehicles are deployed.
WARNING
Improper use of foam can result in injury or damage to the environment. Follow foam manufacturer’s
instructions and fi re service training to avoid: Using wrong type of foam on a fi re, i.e. Class A foam on a
Class B fi re; Plunging foam into pools of burning liquid fuels; Causing environmental damage; Directing
stream at personnel.
WARNING
There is a wide variety of foam concentrates. Each user is responsible for verifying that any foam
concentrate chosen to be used with this unit has been tested to assure that the foam obtained is suitable
for the purpose intended.
