©Copyright Task Force Tips LLC 2011-2019
LIG-012 March 28, 2019 Rev06
17
5.0 NOZZLE CONTROLS
Nozzle control valves must be opened slowly to eliminate unnecessary strain on the hose and couplings and reduce pressure surges.
Nozzles attached to an in-service hose shall be stored in the off position.
5.1 FLOW CONTROL
5.1.1 LEVER TYPE FLOW CONTROL
ON
OFF
On models that use a lever type valve handle, the nozzle is
shut off when the handle is fully forward. The valve handle
has 5 detented fl ow positions. These detent positions
allow the nozzle operator to regulate the fl ow of the
nozzle depending on the need or what can be safely and
eff ectively handled. TFT recommends the use of a pistol
grip for easier handling. For additional stress reduction, a
hose rope or strap may also be used. This permits more
eff ective use and ease of advancement, while minimizing
strain and fatigue.
5.1.2 TIP ONLY
ON
OFF
ON
OFF
Tip only nozzles have NO shut-off valve within the nozzle
and MUST be used with a separate ball valve attached to
the nozzle.
5.1.3 BALL SHUT OFF
Some models include either an integrated ball valve or
a separate ball valve for use with Tip Only nozzles. Ball
valves are shut off when the valve handle is fully forward.
Pulling back on the handle opens the valve. Open valve
slowly to avoid sudden changes in nozzle reaction. Close
valve slowly to prevent water hammer. Note: In partially
open positions a ball valve will cause turbulence and
adversely aff ect stream quality. Nozzles attached to an in-
service hose shall be stored in the off position.
5.1.4 IMPULSE TRIGGER FLOW CONTROL
NOTE: THE TRIGGER RETURNS TO OFF
IF NOT HELD OR LOCKED
OFF
ON
TRIGGER
LOCK
WARNING
Do not intentionally release the nozzle while fl owing and trust the valve to shut off automatically.
The trigger nozzle’s ability to shut off by itself represents an extra level of safety when following
normal nozzle handling procedures. To rely on it as the sole means of safety increases the risk of
injury from an out of control nozzle. Release nozzle when fl ow has stopped.