Elkhart Brass SM-3F, SM-3FG, SM-10F, SM-10FG, TSM-10F SM-20F User Manual

ELKHART BRASS

OPERATING & MAINTENANCE INSTRUCTIONS

SELECT-O-MATIC® NOZZLES

SM-3F, SM-3FG / SM-10F, SM-10FG, TSM-10F

SM-20F, SM-20FG, TSM-20F

SM-30F, SM-30FG, DSM-30F, TSM-30F

SM-3F

SM-3FG

SM-20F SM-30F

SM-20FG

STSM-30BPA

DSM-30F

SM-10F

SM-10FG

SM-30FG

SM-30PL

NFPA 1964,
tion, as applicable to constant pressure (automatic) gallonage spray
nozzles.

The ball shutoff portion of all Select-O-Matic 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.

The hydraulically balanced acetal ball within the shutoff allows for
easy opening and closing of valve. 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 rubber 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 for adjustment and replacement of seats.

This portion of the Select-O-Matic nozzle is protected by a heavy­duty urethane bumper and controls the stream pattern selection and the
flush mechanism. To change from fog to straight stream, rotate the tip to
the right. To change to fog or flush, rotate the tip to the left.

The tip has a fully machined waterway for greater flow efficiency . Low
turbulence allows for better stream quality. This portion of the nozzle
houses the stainless steel spring which activates the automatic mecha­nism. Do not attempt to disassemble this “spring cell” without a special
fixture. The stem can be removed, however, by removing the jam nut on
the “upstream” end of the stem.

Standard for Spray Nozzles (Shutoff and Tip), 1998 Edi-

SHUTOFF

TIP

The Select-O-Matic series of handline nozzles are the most efficient

and effective fire suppression tools available to the fire service today. The
automatic mechanism in each of these nozzles assures you of a superior
firefighting stream throughout the flow range. The constant flow feature
assures you of the same gallonage throughout the fog and straight stream
patterns. This helps make Select-O-Matics ideal for use with foam
eductors and the application of AFFF and Class A Foam. A built-in flush
feature allows passage of debris from the nozzle without shutting down.

These nozzles are constructed of durable, lightweight Elk-O-Lite and

stainless steel, and are designed to give you many years of trouble-free
service. All Select-O-Matic nozzles comply with the requirements of

EB-98015 6/98

The acetal spinning teeth or the optional molded urethane teeth located
in the tip can be removed and replaced easily.

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 firefighter
needs only to rotate the nozzle tip to the left (past wide fog) as far as it
will go. At this point the tip is in flush position and will pass foreign
material. Once the debris is flushed, the tip can be turned back to original
stream selection for normal operations. If the debris is too large to flush,
the firefighter may 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.

EB-98015

OPERATIONS

Select-O-Matic nozzles are designed to maintain sufficient pressure

to give an effective firefighting stream as long as the flow is within the
nozzle’s flow range. The flow ranges of the Select-O-Matics are as
follows:

SM-30F series, 75-325 gpm
SM-20F series, 60-200 gpm
SM-10F series, 60-125 gpm
SM-3F series, 10-75 gpm

To supply these nozzles with the flow desired, refer to the Engine
Pressure Guide furnished with each nozzle. Using this guide is an easy
way for the pump operator to set engine pressure for the necessary flow
as dictated by the fireground officer. If an EPG is not available, just go
back to basics: Engine pressure (E.P.) should be set to provide 100 PSI
nozzle pressure (N.P.), plus 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.

CAUTION

Care should be taken when opening and closing any ball shutoff. Rapid
closure and/or opening may cause “water hammer” or pressure surge
which could cause injury or damage to equipment.

Elkhart Brass does not recommend Select-O-Matic nozzles for use with high rise standpipe systems.

MAINTENANCE AND CARE

The Select-O-Matic series of nozzles is designed and manufactured to

give years of trouble free service. Since the nozzle is the firefighter's first
line of defense against the fire, it should be treated with care. It is not
designed as a battering ram, sledge hammer or forcible entry tool.

Weekly visual inspections and monthly operational checks should en­sure excellent reliability. These inspections may be done daily in busy
companies. All nozzles should be flow tested before entering any hazard­ous environment to ensure equipment is operating properly.

If the nozzle tip becomes hard to rotate (change patterns) remove tip
from nozzle and clean acme threads between the tip and nozzle body.
Should lubrication be needed, Elkhart recommends a silicone-based lubri­cant (Dow-Corning #7 or equivalent). Use lubricant sparingly. Excess
grease will attract dirt and grit and can cause interference between close
fitting parts.

With a minimum amount of care your Select-O-Matic will give you
years of excellent service. If you have any further questions pertaining to
these nozzles, please feel free to call on us at anytime. Thank you for
choosing Elkhart for your fire suppression needs!

ELKHART BRASS MFG. CO., INC.

1302 West Beardsley

P.O. Box 1127

Elkhart, Indiana 46515

PHONE: [phone]

FAX: [phone]

WEBSITE: www.elkhartbrass.com

E-MAIL: [e-mail]