Tyco PROTECTOSPRAY EA-1 Manual

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Type EA-1 ProTEcTosPrAy
Directional spray Nozzles, Automatic,
Medium Velocity
General
Description
The TYCO Type EA-1 PROTECTO-
SPRAY Nozzles are automatic (fran-
gible bulb) directional spray nozzles
designed for use in water spray fixed
systems for fire protection applications.
They are external deflector-type nozzles
that discharge a uniformly filled cone of
medium velocity water droplets.
The Type EA-1 Nozzles are effective in
covering exposed vertical, horizontal,
curved, and irregular shaped surfaces
in a cooling spray to prevent excessive
absorption of heat from an external
fire and possible structural damage or
spread of fire to the protected equip-
ment. However, use of an automatic
nozzle requires consideration of the re-
sponse time of the thermal element.
The Type EA-1 Nozzles are also espe-
cially effective for area coverage and
are sometimes used in lieu of standard
sprinklers where directional spray is
considered more appropriate. In some
applications, depending on water de-
sign density requirements, the Type
EA-1 Nozzles are also used for fire con-
trol or extinguishment.
The Type EA-1 Nozzles are available in
three orifice sizes and a wide variety
of spray angles (included angle of dis-
charge), as well as temperature ratings
to provide versatility in system design.
IMPORTANT
Always refer to Technical Data
Sheet TFP700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling
Installation of sprinkler systems and
components. Improper handling and
installation can permanently damage
a sprinkler system or its components
and cause the sprinkler to fail to
operate in a fire situation or cause it
to operate prematurely.
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It is recommended that the end user be
consulted with respect to the suitabil-
ity of the materials of construction and
finish for any given corrosive environ-
ment. The effects of ambient tempera-
ture, concentration of chemicals, and
gas/chemical velocity should be con-
sidered, at a minimum, along with the
corrosive nature to which the sprinklers
may be exposed.
The Type EA-1 PROTECTOSPRAY Noz-
zle is a redesignation for the Gem Type
EA-1.
NOTIce
The Type EA-1 PROTECTOSPRAY Noz-
zles described herein must be installed
and maintained in compliance with this
document, as well as with the applica-
ble standards of the National Fire Pro-
tection Association, in addition to the
standards of any authorities having
jurisdiction. Failure to do so may impair
the performance of these devices.
The design of individual water spray
fixed systems can vary considerably,
depending on the characteristics and
nature of the hazard, the basic purpose
of the spraying system, the configura-
tion of the hazard, and wind/draft con-
ditions. Because of these variations, as
well as the wide range of available noz-
zle spray characteristics, the design of
water spray fixed systems for fire pro-
tection must only be performed by ex-
perienced designers who thoroughly
understand the limitations as well as
capabilities of such systems.
Owners are responsible for maintaining
their fire protection system and devic-
es in proper operating condition. The
installing contractor or sprinkler manu-
facturer should be contacted with any
questions.
and
JULY 2010 TFP800