Elkhart Brass SELECT-O-FLOW NOZZLES SFS & SFS-G / SFL, SFL-G & TSFL / SFM, SFM-G & TSFM SF, DSF & TSF - Manual

SELECT-O-FLOW ® NOZZLES
SFS & SFS-G / SFL, SFL-G & TSFL / SFM, SFM-G & TSFM
SF, DSF & TSF
EB
-98011
EB-98011 6/98
The Select-O-Flow series of handline nozzles is of constant/select
gallonage design and achieves its maximum performance at 100 psi. The
constant flow feature maintains the same flow rate throughout the stream
pattern selection, i.e., straight stream through wide fog. This makes the
Select-O-Flow series ideal for use with foam eductors and for the appli-
cation of AFFF or Class A foams. The select feature allows the firefighter
to change flow settings (increase or decrease) without shutting down the
hose line.
These nozzles are constructed of durable, lightweight Elk-O-Lite and/
or rugged, chrome-plated brass, and are designed to give you many years
of trouble-free service. All Select-O-Flow nozzles comply with the
requirements of NFPA 1964, Standard for Spray Nozzles (Shutoff and
Tip), 1998 Edition, as applicable to constant/select gallonage spray nozzles.
SHUTOFF
The ball shutoff portion of all Select-O-Flow nozzles feature double*
handle stops and high-strength, aluminum/bronze cast handles for rugged
dependability. The horseshoe handle is large enough to allow operation
with a gloved hand, while the tab handle, although smaller, is less bulky,
yet easy to grip. Both handles are easy to operate.
A hydraulically balanced ball allows the shutoff to be opened and
closed easily under pressure. By allowing water flow over and under the
ball, the cutaway design practically eliminates accidental shutdown. Teflon
impregnated neoprene seats give the “self-healing” advantage of soft rub-
ber plus a lubricated surface to prevent the ball from sticking shut. These
seats may be adjusted without dismantling the entire shutoff. Refer to the
parts drawing and instructions for adjustment or replacement of seats.
TIP
This portion of the Select-O-Flow nozzle is protected by a heavy-
duty rubber bumper and controls the stream pattern selection, as well as
the gallonage control. To change from fog to straight stream, rotate the tip
to the right. To change to fog rotate the tip to the left.
The adjustable gallonage feature allows the firefighter to change gal-
lonage settings when dictated by fireground tactics. When accompanied
by the appropriate changes in engine pressure, the result is an effective
fire stream through a range of flows. Flow ranges depend on individual
size and model. The following chart gives you the flow ranges for your
model.
The TSFL and TSF tips supplied with break-apart nozzles have a
twist shutoff feature within the tip. The tip is shut off by rotating the
gallonage ring to the right. This feature allows the firefighter to maintain
complete control of the stream when the hose line is extended from the
ball shutoff.
A fully machined waterway provides greater flow efficiency. The
lower turbulence results in better stream quality. The floating stem is
designed to eliminate damage when nozzle is accidentally dropped on the tip.
Most of the Select-O-Flow nozzles are designed with rigid metal
teeth. However, the SFM, SFM-G and TSFM feature acetal spinning
teeth or optional molded urethane teeth which can be easily removed and
replaced.
FLUSH
Many water supplies contain rust and debris which can get trapped
inside the nozzle. This will cause poor stream quality and reduced water
flow capabilities. When this occurs, with water still flowing, the fire-
fighter need only dial the gallonage selector ring to the flush position. This
will open the throat of the nozzle to allow foreign material to pass through.
By returning the dial ring to the previous gallonage position, normal op-
erations can be resumed. If the debris is too large to pass, the firefighter
will have to shut down the hose line and remove the nozzle. The debris
can then be removed from the base of the nozzle or from around the stem
head.
OPERATIONS
The Select-O-Flow series is engineered to produce the rated flow
(gpm) for a given gallonage setting when supplied with 100 psi pressure at
the nozzle base. Over-pressurization and under-pressurization will affect
the quality and reach of the streams. Engine pressure (E.P.) should be set
to provide 100 psi nozzle pressure (N.P.), plus the friction loss of the
hose (F.L.), plus any appliance loss (A.L.), plus any elevation loss (E.L.)
E.P. = N.P. + F.L. + A.L. + E.L.
* SF and DSF do not have dual stops at present time, but will have in the near future.
SFS-G
SFS
SFM
SFM-G
DSF
STSFB-800
SFL-G
SFL
ELKHART BRASS
OPERATING & MAINTENANCE INSTRUCTIONS