BETE Brandschutz / Fixed Fire Suppression

BETE Fire Protection Nozzle Experience

Water Deluge

A customer was designing a was recommended because it first choice in dry, fixed fire
water deluge system to protect an offered the proper combination of suppression systems. BETE N
11' x 40' x 8' high chemical tank. coverage and droplet size, as well series nozzles are used routinely
They needed complete coverage as industry approvals, such as in dry fire protection systems
from 2 headers running parallel Factory Mutual and UL. protecting offshore drilling rigs,
to the 40' long side. LPG tanks, and LNG tanks, as
BETE N series fire protection well as other types of vessels
BETE Applications Engineers nozzles are recognized across
provided several spray the petroleum and chemical containing flammable liquids.
trajectories and the N series processing industries as the

Marine

BETE N series nozzles are Factory the correct nozzle mounting Requirements for thermal
Mutual and Lloyd’s Register locations. radiation screening for personnel
approved for fire protection, a protection on ships have been met
requirement for operation out BETE has supplied “Deck Edge” most effectively with the TF170
of U.S. ports. These nozzles nozzles for U.S. Navy applications. or TF150 series nozzles. The TF
are used on ships with water The 3/4" NF300-80X and the nozzles provide better absorption
systems, often replacing older 3/4" NF300-80 have been used in of thermal energy and dissipates
CO2 based systems. spraying Aqueous Film Forming the heat and energy from the fire.
Foam on the decks of aircraft The multiple concentric cones
N series nozzles are also used carriers. provide a barrier to air reentering
to protect outdoor escape routes the fire while also minimizing
onboard tankers and offshore The 1/2" TF29-180 was developed spray wind drift.
oil-drilling platforms. Predicted for Navy magazine sprinkling
spray patterns and trajectories on ships; it meets Military
provide estimated nozzle Specification MIL-S-24660 (SH).
coverage under various wind The 180° full cone pattern reduces
conditions. Using this data, our the vertical clearance required
customers are able to determine between sprinklers and ordinance
from 18" to 4".

Tunnel Fire Protection

BETE Applications Engineers would offer sufficient coverage In March of 2007, a serious auto
supplied spray pattern trajectory over a number of different wind accident occurred that resulted in
data for the fire suppression sys- velocities in the tunnel to control a fire in the tunnel. The sprinkler
tem in the 1.8 mile long Burnley a fire. The system uses a combi- system was activated and BETE
Highway Tunnel in Melbourne, nation of BETE N7W and N8W N series nozzles succeeded in
Australia. The data included nozzles constructed in type 316 controlling the fire.
different wind velocities to stainless steel.
ensure that the nozzles specified

Water Wall

A customer was developing a BETE Applications Engineers cally, the N5W to match the
new water wall protection system suggested a wide angle spiral specified flow rate. To confirm
on an oil rig to protect equipment would be appropriate, specifi- spacing, BETE modeling software
and personnel from the extreme was used to determine spray
heat generated by the natural coverage trajectories from each
gas flare. The current system nozzle when sprayed horizontally
consisted of a few nozzles on the outward. These trajectories
flare boom, but was inadequate provided the customer the
for the amount of heat generated. confidence that the new design
would be more than sufficient
to protect the rig.

BETE...high performance nozzles
for fire protection systems.

Fire Protection Nozzle Experience:

Since its inception in 1950, BETE Fog Nozzle, Inc. has
been recognized as an expert in the fire protection
industry. BETE’s high-performance nozzles continue to
be the premier choice for offshore drilling and production
platforms; petroleum storage and transfer stations;
LNG tanks; and in a wide variety of industrial and
commercial applications.

Product Performance:

BETE’s wide range of fire protection nozzles meet industry
approvals - U.S. Coast Guard, Factory Mutual System,
Underwriters Laboratories and Lloyd’s Register - and are
considered to be the standard for critical spraying applications.
We take advantage of the latest developments in materials
technology and continue to work with companies to create
the most efficient fire protection nozzles.

U.S. Coast Guard
Approved

Engineering Expertise:

Our proven success is a result of our ability to find creative
solutions to difficult spraying challenges. BETE Applications
Engineers can apply their years of expertise to recommend
a nozzle design to deliver the specific spray performance
necessary for your fire protection requirements. Our state-of-
the-art spray laboratory is designed to provide a wide range of
testing capabilities to accommodate emerging industry trends.

BETE Product Performance

Water Wall – Water is used as a barrier Nozzles: TF29-180, SRWM, in addition to maximum flame penetration and heat
water wall and water deluge nozzles transfer. This multiple cone strategy mini-
to shield against radiant heat, harmful mizes wind drift and prevents oxygen
gases, and flames to provide protection for TF29-180 – very wide coverage for limited from reentering the spray area
personnel and equipment. headspace areas (such as storage rooms on
ships) N – spiral nozzle with advantages listed
Nozzles: TF150/170, N, FF, NF above plus tighter tolerances to meet
SRWM – pop-up operation for deck cool- insurance approvals. Protective blow-off
TF150/170 – spiral nozzles with high flow ing/protection/decontamination; used covers available
rates, wide coverage in close proximity, where a permanently exposed nozzle
multiple concentric cones; more effective would be an obstruction TFXP – spiral nozzle with advantages listed
than a fan above but with maximum free passage
Halon Replacement – Professionals
N – spiral with narrower angles than the Water Mist – Water mist systems use
TF150/170; regulatory approvals for fire are turning to fine water mist systems in
protection applications lieu of environment-damaging Halon sys- a finely atomized, low flow water spray
tems. Exceptionally fine water droplets are to extinguish fire. They are ideal for
FF – provides a wide, single sheet spray sprayed over the fire where they evaporate protecting assets that would otherwise
with a 145°angle. Less effective cooling and displace the oxygen, extinguishing be destroyed by water damage in deluge
and barrier protection than spiral-type (TF, the fire. The low volume flow and high systems.
N) nozzles evaporation rate minimize water damage
to sensitive equipment. Nozzles: MicroWhirl, L, PJ, P, MicroWhirl Head
NF – greater choice of angles than FF (15°
up to 120°) Nozzles: MicroWhirl, L, PJ, P, MicroWhirl Head MicroWhirl - high-pressure nozzle produc-
ing very low flow, extremely fine, misting
Water Deluge – There are two general MicroWhirl - high-pressure nozzle produc- protection
ing very low flow, extremely fine, misting
categories for water deluge fire protection protection P, PJ – higher flows than the MicroWhirl;
systems. produces a very fine mist by means of an
P, PJ – higher flows than the MicroWhirl; external impingement pin
1 Direct Extinguish - Large quantities of produces a very fine mist by means of an
water are sprayed over the flames to con- external impingement pin L - higher flows than the PJ with fine
trol the blaze and extinguish the fire. atomization
L - higher flows than the PJ with fine
2 Cooling - Water is sprayed onto the exte- atomization MicroWhirl Head – standard, stock mani-
rior surface of vessels that are under fold for up to (7) individual MicroWhirl
pressure and/or contain volatile materi- MicroWhirl Head – standard, stock nozzles
als, cooling the vessel and preventing ex- manifold for up to seven (7) individual
plosion. MicroWhirl nozzles Toxic Gas Mitigation – Water spray

Nozzles: N, MaxiPass, TFXP, TF150, TFXPW, FF Foam – The nozzles are used to spray systems are used to remove water soluble,
toxic gases from the air in the event of an
N, TFXP, TF150, TFXPW – all spirals provide low-expansion foam, such as AFFF, onto accidental leak. These systems prevent the
a spectrum of drop sizes with concentric ship decks and in smaller enclosed areas to spread of hazardous vapor clouds. BETE
rings of larger droplet, high momentum help subdue the fire. TF16FCN and TF20FCN nozzles were
spray containing fine droplets between the chosen for mitigation systems of accidental
rings. The high momentum, large drop Nozzles: TF, N, NF, NFX releases of hydrofluoric acid (HF) by the
rings punch through the flame while the Industry Cooperative Hydrogen Fluoride
smaller drops vaporize quickly, combining TF, N – spiral nozzles are placed so that the Mitigation Assessment Program.
maximum flame penetration and heat spray is perpendicular to the surface to be
transfer. This multiple cone strategy mini- covered Nozzles: TF, TFXP, N
mizes wind drift and prevents oxygen
from reentering the spray area NF, NFX – flat fan nozzles are oriented to TF/TFXP - finer spray nozzles with standard
spray parallel and very close to the surface flow rates; good for scrubbing chemicals
N – spiral nozzle with advantages listed to be protected
above plus tighter tolerances to meet insur- N - spiral nozzle with advantages listed
ance approvals. Protective blow-off covers Tunnel Fire Protection – A well- above plus tighter tolerances to meet
available insurance approvals. Protective blow-off
designed fixed fire suppression system in covers available
MaxiPass – used when coverage diameter a traffic tunnel protects against loss of
is more important than atomization and human life and minimizes structural dam- Dust explosion protection – Water
headroom is adequate. The MaxiPass pro- age in the case of a fire or explosion. Spiral
duces larger droplets than an equivalent nozzles can be more effective than tradi- spray systems are used to prevent explo-
flow rate spiral causing improved wind re- tional sprinkler systems due to higher sive combustion triggered by dust build
sistance. High-pressure operation narrows flame penetration by the multiple cones. up or static electricity in storage tanks and
the spray angle for greater penetration and transfer conveyors for items such as coal
resistance to crosswinds Nozzles: N, TFXP, TF150, TFXPW and grain.

TFXP – spiral nozzle with advantages listed N, TFXP, TF150, TFXPW – all spirals provide Nozzles: MicroWhirl, L, PJ, TF, SRWM
above but with maximum free passage a spectrum of drop sizes with concentric
rings of larger droplet, high momentum MicroWhirl, L, and PJ – fine mist with no
FF – used for surface or equipment protec- spray containing fine droplets between the wetting. Increases humidity and lowers
tion when relying on rundown for protec- rings. The high momentum, large drop static discharge risk
tion is acceptable rings punch through the flame while the
smaller drops vaporize quickly, combining TF – adding enough moisture to prevent/
Marine – Marine applications include knock down dust

deluge, foam, and water wall systems SRWM – installs flush to the vessel wall
where the nozzles are subject to extreme and extends when activated; used in
weather conditions and exposure to extremely dirty or dangerous areas where
seawater. an exposed nozzle would be destroyed

BETE Product Specifications

N TF29 – 180 MicroWhirl™ /MWH

Spray Characteristics Spray Characteristics Spray Characteristics
• Two spray cones—an outer, wide angle • Wide spray coverage • Mist at low pressure; fog at high pressure
• Fine atomization Spray pattern: Cone-shaped Fog
cone and a narrower inner cone—combine Spray Patterns: Circular sheet with maxi- Flow rates: 0.009 to 0.151 gpm (0.032 to
to give full cone effect mum coverage and excellent atomization 0.517 L/min) per nozzle
Spray Angles: 180° extra-wide angle
• Fine atomization
Full Cone 180°
Spray Patterns: Full Cone

Spray angles: 90° and 120° standard

Flow rates: 3.0 to 534 gpm (9.67 to 1720

L/min) Full Cone 90°

MicroWhirl™ MWH - manifold of 7
Fog

Full Cone 120°

TFXP TF 150/170 PJ

Spray Characteristics Spray Characteristics Spray Characteristics
• Wide range of flow rates • Wide spray angles • Finest mist of any direct pressure nozzle
• Fine atomization • Clog resistant • Fine atomization • Produces high percentage of droplets
Spray Patterns: Full Cone and Hollow Cone
Spray Patterns: Full Cone (Hollow Cone Spray Angles: 50° to 180° under 50 microns
available by special order) Flow rates: 0.5 to 3320 gpm (2.26 to 10700 Spray pattern: Cone-shaped Fog
L/min) (Higher flow rates available) Spray angles: 90°. For best 90° pattern, op-
Spray Angles: 90° and 120° erate nozzle at or above 60 psi (4 bar)
Full Cone 150/170° Flow rates: 0.013 to 1.4 gpm (0.043 to
Flow rates: 3.0 to 3320 gpm (9.67 to 10700 5.34 L/min)

L/min) Full Cone 90° (XPN) Fog

Full Cone 120° (XP)

TFXPW L P

Spray Characteristics Spray Characteristics Spray Characteristics
• Wide coverage • High flow misting performance at • Finest mist of any direct pressure nozzle
• Fine atomization • Produces high percentage of droplets
Spray Patterns: Full Cone low pressure
Spray Angles: 150° Spray Pattern: Hollow Cone Fog, nearly as in the 25-400 micron range; ideal for
Flow rates: 33.6 to 534 gpm (181 to 1720 fine as P series dust suppression
L/min) Spray Angles: 90° standard (120° by special
order) Spray pattern: Cone-shaped Fog
Full Cone 150° Flow rates: 0.14 to 3.84 gpm (0.534 to
14.7 L/min) Spray angles: 90°. For best 90° pattern, oper-
ate nozzle at or above 60 psi (4 bar)
Fog
Flow rates: 0.034 to 7.68 gpm (0.153 to 30.3

L/min)

Fog

BETE Product Certifications U.S. Coast Guard The entire N series is certified
Approved for use on ships and offshore
BETE N series nozzles are the only installations by Lloyd’s Register
spiral design nozzles in the indus- and complies with the International
try that are U.S. Coast Guard and Convention for the Safety of Life at
Factory Mutual approved. Sea (SOLAS). The N3, N4, N5,
All N series nozzles are also N3W, N4W, and N5W models are
Underwriters Laboratories and also approved by the U.S. Coast
Lloyd’s Register approved. These Guard for tank vessel pump
independent agency approvals rooms. The BETE N9 nozzle is
are recognized worldwide by loss designed to meet FM requirements
prevention system designers as im- for use in fixed deluge installations
portant criteria for selecting protecting industrial transformers.
nozzles that conform to stringent The N6 with dust cover option is
installation and performance also Factory Mutual approved. The
standards. entire N series has UL approval in
both stainless steel (ASTM A743)
MaxiPass™ (MP) SRWM & brass (ASTM B30).

Spray Characteristics Self-retracting Wall Mount The TF24-150 nozzle is Factory
• High reliability spray performance under Spray Characteristics Mutual approved. This wide spray
• Relatively large free passage angle design provides maximum
the most difficult conditions • Self-draining coverage in low clearance installa-
Spray pattern: Full Cone* (Square patterns • Pops up to spray when activated tions. The TF29-180 series was
to special order) Spray Pattern: Flat circular sheet with maxi- developed by BETE for Naval Sea
Spray Angles: 30°, 60°, 90° and 120° mum coverage and excellent atomization Systems Command to conform to
Flow rates: 0.7 to 978 gpm (2.6 to 3540 Spray Angle: 180° extra wide coverage Military Specification MIL-S-
L/min). Flow rates up to 4500 gpm (17,000 24660(SH), for fire protection
L/min) available. Hollow Cone 180° within tight quarters of densely
packed ship-board magazines.
Full Cone 90° (M)
Other UL approved nozzles are
FF NF the 3/8” FF 145° fan and the
NCM1012 K-30° full cone (NCK
Spray Characteristics Spray Characteristics series) in Brass (ASTM B30).
• Extra-wide 145° spray angle • High impact The 3/8” FF 187 is also Factory
• Medium-impact spray • Uniform distribution with tapered edges Mutual approved.
• Spray discharge deflected 75° from inlet axis
• Coarse atomization for overlapping sprays
Spray Pattern: Flat Fan Spray pattern: Fan and Straight Jet
Spray Angles: 105° to 145° Spray angles: 0° to 120°
Flow rates: 0.014 to 235 gpm (0.510 to 757 Flow rates: 0.103 to 1380 gpm (0.161 to
L/min) 3430 L/min)

Fan 145° Fan 50°

I Spiral I Misting I Whirl I Fan I Special Purpose

BETE Engineering Expertise

BETE ENGINEERING BETE SPRAY LABORATORY including integrated 3D
CAD/CAM design, rapid
At BETE Fog Nozzle, Inc., our The BETE Spray Laboratory is prototyping, investment casting,
success has always been focused equipped to provide spray test CNC machining, welded fabrica-
on understanding our customers’ data for a wide range of nozzles tion, and spray testing, make it
business and providing effective over an array of operating condi- possible to offer the highest level
engineered solutions to their most tions. Our state of the art spray of quality throughout every phase
difficult fluid process challenges. laboratory is used to test nozzle of production.
With more than 55 years of experi- performance characteristics like
ence designing and fabricating spray pattern, coverage, spray The BETE Difference is our
spray nozzles, BETE has the angle and drop size distribution. unparalleled ability to respond
engineering expertise customers Customers have also used our quickly and effectively to any
can count on. spray laboratory and nozzle kind of spraying challenge
expertise for special test programs. anywhere in the world with the
BETE Applications Engineers Whether you're working on a most knowledgeable customer
use their expertise to assist fire new application or a system service in the industry.
protection system designers modification, BETE spray testing
select the best nozzle for their expertise can provide an effective Ask BETE. We know Fire
application. Our experienced solution. Protection Nozzles.
Applications Engineers are ready
to analyze your conditions of sup- THE BETE DIFFERENCE Our success in fire protection
ply flow rate, operating pressure, is built on our ability to carefully
nozzle orientation, wind drift, BETE’s mission goes beyond engineer our nozzle designs
spray coverage, and spray density. just selling spray nozzles: it is to deliver the specific spray
to provide engineered spraying performance required by fire
BETE has developed proprietary solutions that exceed customer suppression system designers to
software models to provide expectations in every detail. efficiently suppress and extinguish
estimates of critical nozzle per- Extensive in-house capabilities, many different types of fires.
formance data like spray coverage
trajectories. This software, based Call BETE and put our years of
on our years of experience with experience to work to select
spray nozzles, allows us to the best spray nozzle for your
estimate spray coverage for fire protection needs.
various wind speeds, directions
and nozzle orientations.

Spray Coverage Trajectories

Comparison of spray wind resistance for the BETE N6 and N9 Deluge Nozzles. BETE Fog Nozzle,Inc.
Operating Pressure 60 psi, spraying downward,
modeled in 10 & 20 mph crosswind 50 Greenfield St.
Greenfield, MA 01301
N6 DV0.9 = 990 microns N9 DV0.9 = 1411 microns T (413) 772-0846
F (413) 772-6729
www.bete.com

PERFORMANCE THROUGH ENGINEERING

Since 1950, BETE’s performance BETE is the only nozzle manufacturer BETE’s advanced CIM (Computer
in designing innovative spray with a complete in-house investment Integrated Manufacturing)
nozzles has earned us an casting foundry, allowing for precise environment links CAD workstations,
enviable reputation as a world and economical ways to produce a CAM part programming system
leader through its engineering complex shapes in alloys that are and CNC machine tools. This makes
and manufacturing capabilities. difficult or too expensive to machine. it possible to manufacture any one
BETE makes over 20,000 different of thousands of products within a
nozzles and over 60% of the spray In addition, BETE offers many short time, while providing reliable
nozzles shipped are customized specialized processes such as custom delivery forecasts.
solutions to solve the needs welded fabrication, plasma spray
of our customers’ spraying coating, plating, heat treating,
system challenges. grinding, ceramic fabrication and
filament winding of FRP.

www.bete.com

BETE Fog Nozzle,Inc. In 2003, BETE Fog Nozzle, Inc. became the first spray nozzle
company in the world with a quality management system
PERFORMANCE THROUGH ENGINEERING adhering to the demanding ISO 9001:2000 standard.

50 Greenfield Street
Greenfield, MA 01301
T (413) 772-0846 F (413) 772-6729
Email: sales@bete.com
www.bete.com

Manual No. 105.1FF

0608 2.5K
©2008 BETE Fog Nozzle, Inc. All rights reserved.