Injury can occur from an inadequately supported nozzle. The mounting must be capable of
supporting the nozzle reaction force which can be in excess of 2300 lbs (4000 GPM at 120 PSI).
3
The Task Force Tips Masterstream Series Nozzles are automatic pressure control deluge nozzles. These automatic nozzles operate by
sensing the pressure at the nozzle's inlet and adjusting the discharge opening to maintain a constant pressure throughout the flow
range of the nozzle. While flowing, the stream pattern can be varied from wide fog to straight stream. Trapped debris can be removed
without the use of tools.
These nozzles are constructed of hardcoat anodized aluminum and UV resistant rubber. Their rugged construction is compatible with
the use of fresh water as well as firefighting foam solutions. A summary of each nozzle's characteristics is shown in the table below.
OPERATING NOTE ABOUT AUTOMATIC NOZZLES:
The automatic nozzle is considerably different than "conventional" nozzles
because of basic changes in the operating principle. These differences not only assure the most effective operation under a variety of
conditions, but will also utilize the available water supply most efficiently. It is important that nozzle operators, pump operators, and
officers be fully aware of these differences. Therefore, proper instruction is required for safe and effective operations.
NOTES ON ABOVE TABLE:
!
!
!
!
Other threads, coupling sizes or connector styles can be specified at time of order.
Masterstream 1250 nozzle is also available in selectable gallonage or fixed orifice models. See catalog for details.
Masterstream 2000 and 4000 nozzles are field adjustable within the range of pressures shown.
For long term installations, it is recommended that the threads be greased before installing the nozzle.
2.0 GENERAL INFORMATION
Do not couple aluminum to brass. Dissimilar metals coupled together can cause galvanic corrosion
that can result in inability to unscrew threads or complete loss of thread engagement.
This equipment is intended for use by trained personnel for firefighting. Their use for other
purposes may involve hazards not addressed by this manual. Seek appropriate guidance and
training to reduce risk of injury.
Nozzle must be properly connected. Mismatched or damaged threads may cause nozzle to leak or
uncouple under pressure and could cause injury.
MASTERSTREAM 1250
150-1250
600-4700
100
7
2.5" NH FEMALE
MASTERSTREAM 2000
300-2000
1100-7600
3.5" NH FEMALE
MASTERSTREAM 4000
600-4000
2300-15000
80-120
5.5-8.3
6" ANSI 150 FLANGE
FLOW
FLOW
PRESSURE
PRESSURE
STANDARD
SERIES
(GPM)
(LPM)
(PSI)
(BAR, KPA/100)
COUPLING
80-120
5.5-8.3
Some volatile liquids can be ignited by static discharge.
Static build-up can occur from:
Electrochemical separation of charge as water drains through low conductivity, refined
products.
Applying foam over a low conductivity liquid of sufficient depth to retain the charge created
as the foam blanket drains.
Streaming currents as water or foam is introduced into the storage tank.
&
&
&
1
Water is a conductor of electricity. Application of water solutions on high voltage equipment can
cause injury or death by electrocution. The amount of current that may be carried back to the nozzle
will depend on the following factors:
Voltage of the line or equipment
Distance from the nozzle to the line or equipment
Size of the stream
Whether the stream is solid or broken
Purity of the water
&
&
&
&
&
2
1 Electrostatic Hazards of Foam Blanketing Operations by Peter Howels. Industrial Fire Safety July/August 1993
2 The Fire Fighter and Electrical Equipment, The University of Michigan Extension Service, Fourth Printing 1983. Page 47.
WARNING
WARNING
WARNING
WARNING
CAUTION
CAUTION
©Copyright Task Force Tips, Inc. 1999-2005
LIM-030 October 12, 2005 Rev 05
