Tyco DS-1 Series Manual

Technical Services

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Series DS-1 Dry-Type Sprinklers
Quick Response, Standard Coverage

5.6 K-factor, 3/4 and 1-Inch NPT

General
Description

The TYCO Series DS-1, 5.6 K-factor,
3/4 and 1-Inch NPT, Quick Response,
Standard Coverage, Dry-Type Sprink­lers are decorative, 3-mm glass bulb
automatic sprinklers de signed for com­mercial use. Dry-Type Sprinklers are
typically used where:

•

pendent sprinklers are re quired on
dry pipe systems that are exposed to
freezing tempera tures; for example,
sprinkler drops from un heated por­tions of buildings.

•

sprinklers and/or a portion of the con­necting piping are exposed to freezing
temperatures; for example, sprinkler
drops from wet sys tems into freezers,
sprinkler sprigs from wet systems into
unheated attics, or horizontal piping
extensions through a wall to protect an
unheated areas such as loading docks,
overhangs, and building exteriors.

•

sprinklers are used on sys tems that are
seasonally drained to avoid freezing;
for example, vacation areas.

jurisdiction. Failure to do so may impair
the performance of these de vices.

Owners are responsible for maintain ing
their fire protection system and de vices
in proper operating condition. The in­stalling contractor or sprinkler manu­facturer should be contacted with any
questions.

The Series DS-1 Dry-Type Sprinklers
must only be installed in fittings that
meet the requirements of the Design
Criteria section.

Model/Sprinkler
Identification
Numbers (SINs)

3/4-Inch NPT:

TY3935 - Pendent
TY3735 - Horizontal Sidewall

1-Inch NPT:
TY3235 - Pendent

TY3135 - Upright
TY3335 - Horizontal Sidewall

NOTICE

The Series DS-1 Dry-Type Sprinklers
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 hav ing

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.

IMPORTANT

Page 1 of 10 OCTOBER 2010 TFP510

TFP510

Page 2 of 10

3/4-INCH NPT

TY3935 Pendent

with Standard

Recessed Escutcheon

(Figure 4)

TY3935 Pendent

with Standard Escutcheon

(Figure 3)

with Deep Escutcheon

(Figure 5)

without Escutcheon

(Figure 6)

TY3735 Horizontal Sidewall

with Top of Deflec tor-to-Ceiling

Dist ance of 4 to 12 inches

(100 to 30 0 mm)

with Standard Escutcheon

(Figure 8)

with Deep Escutcheon

(Figure 9)

without Escutcheon

(Figure 10)

Temperature

Rating

Bulb

Color Code

Natural

Bras s

Chrome

Plate d

White

Polyester

Natural

Bras s

Finish

Chrome

Plate d

White

Polyester

Natural

Bras s

Chrome

Plate d

135°F (57°C) Orange 1, 2 1, 2 1*, 2*

155°F (68°C) Red 1, 2 1, 2 1*, 2*

175°F (79°C) Yellow 1, 2 1, 2 1*, 2*

200°F (93°C) Green 1, 2 1, 2 1*, 2*

286°F (141°C) Blue N/A 1, 2 1*, 2*

Notes:

1. Listed by Underwriters Laboratories, Inc.
(maximum order length of 48 inches).

2. Listed by Underwriters Laboratories for use in
Canada (maximum order length of 48 inches).

* Light and Ordinary Hazard Occupancies Only / N/A - Not Available

TABLE A

3/4-INCH NPT, SERIES DS-1 QUICK RESPONSE, STANDARD COVERAGE DRY-TYPE SPRINKLERS

LABORATORY LISTINGS AND APPROVALS

White

Polyester

1-INCH NPT

Temperature

Rating

Bulb

Color Code

TY3235 Pendent

with Standard

Recessed Escutcheon

(Figure 4)

Natural

Bras s

Chrome

Plate d

White

Polyester

TY3235 Pendent

with Standard Escutcheon

(Figure 3)

with Deep Escutcheon

(Figure 5)

without Escutcheon

(Figure 6)

TY3135 Upright

without Escutcheon

(Figure 7)

Finish

Natural

Bras s

Chrome

Plate d

White

Polyester

TY3335 Horizontal Sidewall

with Top of Deflec tor-to-Ce iling

Dist ance of 4 to 12 inches

(100 to 30 0 mm)

with Standard Escutcheon

(Figure 8)

with Deep Escutcheon

(Figure 9)

without Escutcheon

(Figure 10)

Natural

Bras s

Chrome

Plate d

White

Polyester

135°F (57°C) Orange 1, 2, 3 1, 2 1, 2, 3 1, 2 1*, 2*, 3** 1*, 2*

155°F (68°C) Red 1, 2, 3 1, 2 1, 2, 3 1, 2 1*, 2*, 3** 1*, 2*

175°F (79°C) Yellow 1, 2, 3 1, 2 1, 2, 3 1, 2 1*, 2*, 3** 1*, 2*

200°F (93°C) Green 1, 2, 3 1, 2 1, 2, 3 1, 2 1*, 2*, 3** 1*, 2*

286°F (141°C) Blue N/A 1, 2, 3 1, 2 1*, 2*, 3** 1*, 2*

Notes:

1. Listed by Underwriters Laboratories, Inc.
(maximum order length of 48 inches).

3. Approved by Factory Mutual Research Corporation
(maximum order length of 48 inches).

2. Listed by Underwriters Laboratories for use in Canada
(maximum order length of 48 inches).

4. The Upright Sprinkler without an Escutcheon (TY3135)
is available in 1-Inch NPT only.

* Light and Ordinary Hazard Occupancies Only / ** Light Hazard Occupancies Only / N/A - Not Available

1-INCH NPT AND ISO 7-R1, SERIES DS-1 QUICK RESPONSE, STANDARD COVERAGE DRY-TYPE SPRINKLERS

TABLE B

LABORATORY LISTINGS AND APPROVALS

PLUG WITH

SEALING

ASSEMBLY

PLUG

SPRING

INLET

YOKE

INLET
BAND

TFP510

Page 3 of 10

Technical
Data

Approvals

UL and C-UL Listed
FM Approved

Refer to Tables A and B.

WATER

TUBE

GUIDE

TUBE

FRAME

VENT HOLE

DEFLECTOR

SPRING

CASING

INSERT

BULB
SEAT

3 mm BULB

COMPRESSION

SCREW

FIGURE 1

SERIES DS-1, 3/4-INCH NPT, QUICK RESPONSE

DRY-TYPE SPRINKLER ASSEMBLY

PLUG WITH

SEALING

ASSEMBLY

SPRING

WATER

TUBE

GUIDE

TUBE

FRAME

INLET

YOKE

INLET
BAND

CASING

INSERT

BULB
SEAT

Maximum Working Pressure

175 psi (12,1 bar)

Inlet Thread Connection

3/4-Inch NPT
1-Inch NPT or ISO 7-R1

Discharge Coefficient

K = 5.6 GPM/psi
(80,6 LPM/bar

1/2

1/2

)

Temperature Ratings

Refer to Tables A and B.

Finishes

Sprinkler: Natural Brass, Chrome
Plated, White Polyester

Escutcheon: White Coated, Chrome
Plated, Brass Plated

Physical Characteristics

Inlet. . . . . . . . . . . . . . . . . . . . . Copper

Plug . . . . . . . . . . . . . . . . . . . . Copper

Yoke . . . . . . . . . . . . . . Stainless Steel

Casing . . . . .Galvanized Carbon Steel

Insert . . . . . . . . . . . . . . . . . . Bronze

Bulb Seat . . . . . . . . . . .Stainless Steel

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

Compression Screw . . . . . . . . Bronze

Deector . . . . . . . . . . . . . . . . Bronze

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

Guide Tube . . . . . . . . . Stainless Steel

Water Tube . . . . . . . . .Stainless Steel

Spring . . . . . . . . . . . . .Stainless Steel

Plug Spring*. . . . . . . . .Stainless Steel

Sealing Assembly . . . . . . . . Beryllium

Nickel w/Teon**

Escutcheon . . . . . . . . . Carbon Steel

Patents

U.S.A. Patent No. 5,188,185

**Registe red trademark of DuPont

*For 3/4- Inch NPT only

VENT HOLE

DEFLECTOR

3 mm BULB

COMPRESSION

SCREW

FIGURE 2

SERIES DS-1, 1-INCH NPT AND ISO 7-R1, QUICK RESPONSE

DRY-TYPE SPRINKLER ASSEMBLY