Tyco Fire Product CENTRAL K17-231 Manual de usuario

Manufactured by: Central Sprinkler Company

451 North Cannon Avenue, Lansdale, Pennsylvania 19446

K17-231

No. 3-5.0

3-98

The Central Model K17-231TM Auto-

matic Sprinkler has been tested and

listed for storage occupancies. Full-scale

fire testing of high challenge fires in

storage occupancies using low required

operating pressures was conducted and

was successful.

The fire tests results show pressures as

low as 7 psi

(0.5 bar)

can be used with the

Central K17-231TM. This results in very

low pressure requirements that can save

cost by reducing branch line sizes,

increasing the spacing, eliminating

booster pumps, and upgrading existing

densities.

The Model K17-231TM is used with the

area density curves of NFPA 231and

231C. It is essentially a Standard Spray

Sprinkler with a 17.5

(252.4 metric)

K-

Factor. The larger K-Factor allows the

pressure to be reduced when compared

to ELO, LO, or standard orifice sprin-

klers. This reduction in pressure results

in cost savings on the overall system.

The K17-231

differs from the ULTRA

K-17

by its brass deflector, the markings

on the deflector, and the K-Factor.

Product

Description

K17-231 SA

Technical

Data

Model: K17-231TM

Style: Upright, Pendent

Orifice Size: .775

(19.7 mm)

K-Factor: 17.5

(252.4 metric)

Thread: 3⁄4"

(20 mm)

N.P.T.

Temp. Rating

Glass Bulb

155°F/68°C - Red (FM only)

200°F/93°C - Green

286°F/141°C - Blue

Approvals: UL, cUL, FM

*Upright Only

Maximum Working Pressure:

175 psi

(12.1 bar)

Factory Hydro Test: 100% at 500 psi

(34.5 bar)

Standard Finish: brass

Patent: Pending

Standard

Spray

Automatic

Sprinkler

Design

Data

The Model K17-231TM Sprinkler is Listed

for standard sprinkler placement as specified

in NFPA 13, 231, 231C, and 231D.

The K17-231

is not Listed for use as

a “large drop” sprinkler nor as an

“ESFR” sprinkler.

The following parameters must be

incorporated into the design of automatic

sprinkler systems utilizing Model K17-231TM

Sprinklers for NFPA applications:

1. Minimum sprinkler spacing is 6 feet

(1.8 m)

2. Maximum coverage area is 100 sq. ft.

(9.3 m

)

3. Automatic sprinkler systems must

be hydraulically calculated.

4. To use the Specific Application

Listing, the design must follow the

Specific Application Guidelines on

page 2.

Specific Application

25'-0"

(7.6 m)

Building with

20'-0"

(6.1 m)

Storage

No In-rack Sprinkler Required

Standard U.L. FM*

NFPA 13 Yes Yes

NFPA 231 Yes Yes

NFPA 231C Yes Yes

NFPA 231D Yes Yes

Approval Guide

*Upright Only

OBSOLETE

Temperature Rating: 200°F/93°C.

Hydraulic Design Criteria: End head flow to be

determined based on the spacing of the sprinkler,

per NFPA spacing criteria for standard spray

sprinklers (see section 4-2.2.1), multiplied by the

density of .6 gpm per sq. ft.

(24.4 lpm/m

)

. This flow is

then used in the formula: pressure = (flow/K-factor)2

to determine the minimum end head pressure. At

least 7 psi

(0.5 bar)

must be used, even if the

calculated pressure is less.

Design Area: For wet systems 2000 square feet

(186 m

)

and for dry systems use the

30% increase for a total of 2600

square feet

(241.8 m

)

Spacing: NFPA criteria for standard spray

sprinklers. Maximum spacing is 100

square feet

(9.3 m

)

. Minimum spacing is

(1.8 m)

apart unless separated by

baffles.

Obstructions: NFPA criteria for standard spray

sprinklers.

Type of Storage: Single, double, multiple-row and

portable rack storage and solid

piled or palletizied storage.

Commodity: Class I-IV, encapsulated or non-

encapsulated. Group A and B

plastics - cartoned, expanded or

unexpanded as well as exposed,

unexpanded.

Maximum Storage Height: 20'

(6.1 m)

Clearance: 36"

(914.4 mm)

minimum from deflector

to top of storage.

Max. Ceiling Height in Area of Storage: 25'

(7.6 m)

Construction Type: All types - deflector distances

per NFPA 13.

System Type: Wet or dry

Sprinkler Data: K-Factor 17.5

(252.4 metric)

Orifice .775

(19.7 mm)

Thread Size 3⁄4"

(20 mm)

K17-231TM Specific Application Guidelines

NOTE: The K17-231TM is a standard spray sprinkler for use with the area/density curves of the NFPA standards

and a specific application sprinkler for reduced area. The following guidelines are only for reduced area

applications. These guidelines do not apply if you are not using the K17-231TM for reduced area specific

application. For standard applications, see the K17-231TM data sheet.

Note:

For projects requiring Factory Mutual Guidelines, consult the Factory Mutual Loss Prevention Data Sheets. Some of their

requirements are different.

OBSOLETE

Installation

All Central Model K17-231TM sprinklers

must be installed according to current

NFPA Standards. Deviations from these

requirements and standards or any

alteration to the sprinkler itself will void

any warranty made by Central Sprinkler

Company. In addition, installation must

also meet local government provisions,

codes, and standards as applicable.

The system piping must be properly

sized to insure the minimum required flow

rate at the sprinkler. Check for the proper

model, style, orifice size, and temperature

rating prior to installation. Install sprin-

klers after the piping is in place to avoid

mechanical damage; replace any

damaged units.

Wet pipe systems must be protected

from freezing.

Upon completion of the installation, the

system must be tested per recognized

standards.

In the event of a thread leak, remove

the unit, apply new pipe joint compound

or tape, and reinstall.

Figure 1

K17-231TM Upright Sprinkler Figure 2

K17-231TM Pendent Sprinkler

Installation Sequence

Step 1. The unit must be installed in the

upright or pendent position.

Step 2. Use only a non-hardening pipe

joint compound or Teflon* tape. Apply

only to the male threads.

*Teflon is a trademark of the DuPont Corp.

Step 3. Hand tighten the sprinkler into

the fitting. Use a wrench to tighten the

unit into the fitting. A leak-tight joint

requires only 7 to 14 ft.-lbs.

(9.5 to 19.0

Nm)

of torque; a tangential force of 14 to

28 lbs.

(62.3 to 124.5 N)

delivered through

a 6"

(150 mm)

handle will deliver adequate

torque. Torque levels over 21 ft.-lbs.

(28.6

Nm)

may

distort the orifice seal, resulting

in leakage.

The sprinkler shall, per NFPA, be

oriented so the frame arms are parallel

with the branch line pipe.

2 11/32"

(59.5 mm)

2 3/8"

(60.3 mm)

OBSOLETE

K17-231TMSA.4

Printed in U.S.A.

Sprinklers must be handled carefully.

They should not be transported or stored

where ambient temperature may exceed

100oF/38oC. For best results, store them

in a dry, cool location in the original

shipping package.

Do not install sprinklers that have been

dropped or visibly damaged, such as a

crack in a glass bulb or a loss of liquid

from the bulb. Sprinklers should never be

painted, coated, plated, or altered in any

other way from manufactured condition or

they may not function properly. Any

sprinklers altered in such manner must be

replaced.

The owner is responsible for the proper

operating condition of all fire protection

devices and accessories. The NFPA

Standard 25 entitled,

“Inspection Testing

and Maintenance of Water-Based Fire

Protection Systems”

, contains guidelines

and minimum maintenance requirements.

Furthermore, the local

Authority Having

Jurisdiction

may have additional regula-

tions and requirements for maintenance,

testing, and inspection that must be

obeyed.

It is advisable to have sprinkler systems

inspected regularly by a qualified inspec-

tion service. Length of time between

such inspections can vary due to accessi-

bility, ambient atmosphere, water supply,

and site activity.

Do not attempt to reassemble or

otherwise reuse a sprinkler that has

operated. Replace any sprinkler exhibit-

ing corrosion or damage; always use new

sprinklers of the same type and tempera-

ture rating as replacements.

Care &

Maintenance

Do not attempt to replace sprinklers

without first removing the fire protection

system from service. Be certain to secure

permission from all

Authorities Having

Jurisdiction

, and notify all personnel who

may be affected during system shutdown.

A fire watch during maintenance periods is

a recommended precaution.

To remove the system from service

mode, first refer to the system operating

guide and valve instruction. Drain the water

and relieve pressure in the pipes. Remove

the existing unit and install the replacement,

using only the special sprinkler wrench. Be

certain to match model, style, orifice, and

temperature rating.

A fire protection system that has been

shut off after an activation should be

returned to service immediately. Inspect

the entire system for damage and replace

or repair as necessary. Sprinklers that did

not operate but were subjected to corro-

sive elements of combustion or excessive

temperatures should be inspected, and

replaced if need be. The

Authority Having

Jurisdiction

will detail minimum replace-

ment requirements and regulations.

Guarantee: Central Sprinkler Company

will repair and/or replace any products

found to be defective in material or

workmanship within a period of one year

from the date of shipment. Please refer to

the current Price List for further details of

the warranty.

Ordering Information: When placing an

order, indicate the full product name.

Please specify the quantity, model, style,

orifice size, temperature rating, and type

of finish or coating.

Availability and Service: Central

sprinklers, valves, accessories, and other

products are available throughout the

U.S. and Canada, and internationally,

through a network of Central Sprinkler

distribution centers. You may write

directly to Central Sprinkler Company, or

call (215) 362-0700 for the distributor

nearest you.

Patents: Patents are pending.

Conversion Table:

1 inch = 25.400 mm

1 foot = 0.3048 m

1 pound = 0.4536 kg

1 foot pound = 1.36 Nm

1 psi = 6.895 kpa

= 0.0689 bar

= 0.0703 kg/cm2

1 U.S. gallon = 3.785 dm3

= 3.785 liters

Conversions are approximate.

Ordering

Information

Central Sprinkler Company

451 North Cannon Avenue, Lansdale, PA 19446

PHONE (215) 362-0700

FAX (215) 362-5385

OBSOLETE

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