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Technical

Data

Approvals

UL and C-UL Listed.

FM, LPCB, VdS, and NYC Approved.

(Refer to Table A for complete ap-

proval information including corrosion

resistant status.)

Maximum Working Pressure

RefertoTableB.

Discharge Coefficient

K=2.8GPM/psi

1/2

(40,3 LPM/bar

1/2

)

K=5.6GPM/psi

1/2

(80,6 LPM/bar

1/2

)

K = 8.0 GPM/psi

1/2

(115,2 LPM/bar

1/2

)

Temperature Ratings

RefertoTableA.

Finishes

Sprinkler: Refer to Table A.

Recessed Escutcheon: White Coated,

Chrome Plated, or Brass Plated.

Physical Characteristics

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

Button......... Brass/Copper

SealingAssembly ..........

. . . . . Beryllium Nickel w/Teflon†

Bulb...............Glass

Compression Screw . . . . . Bronze

Deflector ...........Copper

Bushing (K=2.8) . . . . . . . Bronze

Operation

The glass Bulb contains a fluid which

expands when exposed to heat. When

the rated temperature is reached, the

fluid expands sufficiently to shatter the

glass Bulb, allowing the sprinkler to

activate and water to flow.

Design

Criteria

The Series TY-B Pendent and Upright

Sprinklers are intended for fire protec-

tion systems designed in accordance

with the standard installation rules rec-

ognized by the applicable Listing or

Approval agency (e.g., UL Listing is

based on the requirements of NFPA

13, and FM Approval is based on the

requirements of FM’s Loss Prevention

Data Sheets). Only the Style 10 or 40

Recessed Escutcheon, as applicable,

is to be used for recessed pendent

installations.

TFP151

Page 5 of 8

TYPE NATURAL

BRASS

CHROME

PLATED

WHITE

POLYESTER

SPRINKLER FINISH

RECESSED PENDENT

(TY3251)

NOTE:

1. The maximum working pressure of 250 psi (17,2 bar) only applies to the Listing by Underwriters Laboratories, Inc. (UL); the Listing by

Underwriters Laboratories, Inc. for use in Canada (C-UL); and, the Approval by the City of New York.

TABLE B, MAXIMUM WORKING PRESSURE

WAX OVER

LEAD COATED

LEAD

COATED

WAX

COATED

175 PSI (12,1 BAR)

5.6

1/2"

NPT

PENDENT (TY3251)

and

UPRIGHT (TY3151)

RECESSED PENDENT

(TY4251)

8.0

3/4"

NPT

PENDENT (TY4251)

and

UPRIGHT (TY4151)

8.0

1/2"

NPT

PENDENT (TY4951)

and

UPRIGHT (TY4851)

250 PSI (17,2 BAR)

175 PSI (12,1 BAR)

(SEE NOTE 1)

175 PSI (12,1 BAR)

PENDENT (TY1251)

and

UPRIGHT (TY1151)

2.8

1/2"

NPT

175 PSI (12,1 BAR)

N/A

† DuPont Registered Trademark

Brand	Tyco
Model	TY-B Series
Category	Irrigation System
Language	English

Tyco TY-B Series User Manual

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