Tyco EA-1 PROTECTOSPRAY General Description Manual

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Type EA-1 PROTECTOSPRAY
Directional Spray Nozzles, Automatic,
Medium Velocity

www.tyco-fire.com

General
Description

The TYCO Type EA-1 PROTECTO­SPRAY Directional Spray Nozzles are
automatic (frangible 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 PROTECTOSPRAY
Directional Spray 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 equip­ment. However, use of an automatic
nozzle requires consideration of the
response time of the thermal element.

The Type EA-1 PROTECTOSPRAY
Directional Spray Nozzles are also
especially 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 design density requirements,
the Type EA-1 Nozzles are also used for
fire control or extinguishment.

The Type EA-1 PROTECTOSPRAY
Directional Spray Nozzles are available
in three orifice sizes and a wide variety
of spray angles (included angle of dis­charge), as well as temperature ratings

IMPORTANT

Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.

Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions
with respect to handling and 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.

to provide versatility in system design.

It is recommended that the end user be
consulted with respect to the suitabil­ity of the materials of construction and
finish for any given corrosive environ­ment. The effects of ambient tempera­ture, concentration of chemicals, and
gas/chemical velocity should be con­sidered, at a minimum, along with the
corrosive nature to which the sprinklers
may be exposed.

The Type EA-1 PROTECTOSPRAY
Directional Spray Nozzle is a re-desig­nation for the Gem Type EA-1.

NOTICE

The Type EA-1 PROTECTOSPRAY
Directional Spray Nozzles described
herein must be installed and maintained
in compliance with this document, as
well as with the applicable standards
of the National Fire Protection 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 configura­tion of the hazard, and wind/draft con­ditions. Because of these variations,
as well as the wide range of available
nozzle spray characteristics, the design
of water spray fixed systems for fire
protection must only be performed by
experienced designers who thoroughly
understand the limitations as well as
capabilities of such systems.

The owner is responsible for main­taining their fire protection system
and devices in proper operating con­dition. Contact the installing contrac­tor or product manufacturer with any
questions.

Technical
Data

Approvals

UL and C-UL Listed
FM Approved

Maximum Working Pressure

175 psi (12,1 bar)
(Also refer to Figure 2, Note 2)

Discharge Coefficient

Refer to Table A

Spray Angles

Refer to Table B

Temperature Rating

Refer to Table C

Finish and Material

Refer to Table D

Thread Connection

1/2 in. NPT

Physical Characteristics

Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze

Bushing (K=1.4 & K= 2.8) . . . . . . . . . . . . . . Brass

Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze

Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass

Bulb (11 mm dia.) . . . . . . . . . . . . . . . . . . . .Glass

Bulb Seats . . . . . . . . . . . . . . . . . . . . . . . . .Bronze

Spacer . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze

Button . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze

Spring Plates . . . . . . . . . . . . . . . . . . . . . . Inconel

Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . Copper

Operation

The glass bulb contains a fluid that
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter the
glass bulb, allowing the nozzle to acti­vate and water to flow.

Page 1 of 6 AUGUST 2018 TFP800

TFP800

Components:

NOMINAL MAKE-IN

(1/4" & 3/8"

NPT

Page 2 of 6

-

Frame1

-

2 Deector

-

Upper Bulb Seat

3

-

4

Lower Bulb Seat

SIZE

STAMPED ON

WRENCHING

AREA FOR

1/4" & 3/8"

ORIFICE

1/2"

-

5

Pin

-

6 Button

-

7 Spacer

-

8 Spring Plates

1-3/4"

(44,5 mm)

7/16" (11,1 mm)

FIGURE 1

TYPE EA-1 PROTECTOSPRAY NOZZLE

NOMINAL DIMENSIONS

ORIFICE

SIZE

Inches

1/4 0.220 (5,59) 1.4 20,2

3/8 0.312 (7,92) 2.8 40,3

1/2 0.435 (11,05) 5.6 80,6

MINIMUM

DIAMETER

Inches (mm)

TABL E A

SELECTION OF ORIFICE SIZES

65° 95° 80° 110 ° 125° 140 ° 160° 180°

TABL E B

SELECTION OF SPR AY ANGLES

Design
Criteria

Nozzle Placement

Where direct impingement of water
spray onto all of the protected surface
is required by the authority having juris­diction, the nozzles are to be spaced
and directed so that their spray pat­terns will completely cover the plane­of-protection with the minimum
required average density. However, it
is recommended that indoor nozzle
spacing be 12 ft (3,7 m) or less and that
outdoor nozzle spacing be 10 ft (3,0 m)
or less. Where rundown or slippage is
planned, for example, exposure protec-

-

9

Lower Bulb
Gasket

-

Gasket10

-

11 Bulb

3"

(76,2 mm)

3-7/16"

(87,3 mm)

K-FACTO R

GPM/psi

tion of vessels per NFPA 15, the above

½

-

12 Bushing

orice only)

SPRAY ANGLE

MARKING

11

10

12

LPM/bar

½

2

5

3

9

4

7

8

6

1

recommended indoor and outdoor
spacings also apply.

When used for protecting the surfaces
of a vessel, for example, the nozzles
are positioned normal to and approx­imately 2 ft (0,6 m) from the surface.
This approach, in conjunction with
a properly selected spray angle, will
tend to make more effective use of the
spray as well as help minimize the dis­turbance effects of wind/draft condi­tions on the water spray patterns.

Spray Patterns

The Design Spray Profiles for the nozzle
spray angles of 65 to 180 degrees are
shown in Figure 2 and apply to dis­charge pressures of 20 to 60 psi (1,4

TEMPERATURE

RATI NG

135° F (57 °C) Unpainted Orange

175°F ( 7 9 °C) White Yell o w

250°F (121°C) Blue Blue

325°F (163°C ) Red Mauve

400°F (204°C) Green Black

500°F (260°C) Orange Black

FRAME
COLOR

CODE

BULB

CODE
COLOR
LIQUID

TABL E C

SELECTION OF

TE M P E R AT U R E RATING S

FINISH &

MAT E RIAL

Natural Finish

Bronze

Chrome Plated

Bronze

Lead Coated

Bronze

Corrosion-Resistant
Wax-Coated Bronze

TEMPERATURE

RATI NGS

All Ratings

135° F (57 °C)

175°F ( 7 9 °C)
250°F (121°C)
325°F (163°C )

135° F (57 °C)

175°F ( 7 9 °C)

TABL E D

SELECTION OF

FINISH AND MATERIALS

to 4,1 bar). Discharge pressures in
excess of 60 psi (4,1 bar) will result in a
decrease in coverage area because the
spray patterns tend to draw inwards
at higher pressures. Refer inquiries
on higher discharge pressures to the
Technical Services Department.

The maximum axial distances between
the nozzle tip and plane-of-protection,
for exposure protection, are given in
Table E and F. When the axial distance
from the nozzle tip to the plane-of­protection is 2 ft (0,6 m) or less, the
Design Spray Profile is the same as
the nominal spray angles of 65 to 140
degrees.

Heat Sensitivity

Because the Type EA-1 PROTEC­TOSPRAY Directional Spray Nozzles
are automatic nozzles, they must be
located with consideration of their
ability to detect abnormal tempera­ture increases due to fire. Therefore,
it is recommended that NFPA 13 be
reviewed with respect to the rules
that define the permitted distance
below ceilings and the spacing limita­tions for standard coverage automatic
sprinklers as a function of occupancy
hazard.