Model DSB-2
Dry Sprinkler Boot
For Use With TFP Dry Type Sprinklers
Page 1 of 4
AUGUST 2018
TFP591
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 instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
Worldwide
Contacts
www.tyco-fire.com
General
Description
The TYCO Model DSB-2 Dry Sprinkler
Boot (Ref. Figure 1) is designed for use
with TFP Dry Type Sprinklers. When
properly installed, it will help close the
air gap created by the clearance hole
through a wall or ceiling through which
the dry type sprinkler has penetrated.
The DSB-2 is intended predominately
for use with clearance holes through
freezer ceiling structures. In these
types of installations, due to the greater
temperature difference between the
inside and outside of the freezer than
found with other type installations, the
potential for the formation of conden-
sation in the sprinkler and subsequent
ice build-up is increased. If this con-
densation is not controlled, ice build-up
can occur that might damage the dry
type sprinkler and/or prevent proper
operation in a fire situation.
The DSB-2 is intended to help stop the
air exchange between the inside and
outside of the freezer (or any other type
of similar construction) to help prevent
transfer of moist air into the freezer
space. The use of the DSB-2 provides
a quick and efficient means of closing
the air gap created by the dry type
sprinkler clearance hole. The DSB-2
provides the added feature of eliminat-
ing the occurrence of cracking of some
commonly used sealants, that subse-
quently allows the passage of moist air.
NOTICE
The Model DSB-2 Dry Sprinkler Boot
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 other
authorities having jurisdiction. Failure
to do so may impair the performance
of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Technical
Data
Approvals
The TYCO Model DSB-2 Dry Sprin-
kler Boot does not require laboratory
approval to be installed in accordance
with the applicable standards of the
NATIONAL FIRE PROTECTION ASSO-
CIATION. The use of the DSB-2 does
not alter any of the applicable labo-
ratory approvals for TFP Dry Type
Sprinklers.
The 2007 edition of NFPA 13, Section
8.4.10.2 requires that dry sprinklers
connected to wet pipe sprinkler
systems protecting insulated freezer
structures, the clearance space around
the sprinkler barrel shall be sealed.
Dry Type Sprinkler Compatibility
and Technical Data Sheet
Reference
Series DS-1, Standard Response
Standard Coverage,
Pendent, Upright
and HSW . . . . . . . . . . . . . . . . . . . .TFP500
Series DS-1, Quick Response
Standard Coverage,
Pendent, Upright
and HSW . . . . . . . . . . . . . . . . . . . . TFP510
Series DS-C, Standard Coverage
Concealed Pendent . . . . . . . . . . . . TFP515
Series DS-ECC, Extended Coverage
Concealed Pendent . . . . . . . . . . . . TFP518
Series DS-1, Extended Coverage
Horizontal Sidewall . . . . . . . . . . . . TFP520
Series DS-2, Standard
Coverage Pendent . . . . . . . . . . . . . TFP530
Series DS-2, Extended
Coverage Pendent . . . . . . . . . . . . . TFP540
Series DS-3, ECOH
Horizontal Sidewall . . . . . . . . . . . . TFP550
NOTE: Use of the Model DSB-2 Dry
Sprinkler Boot with non-TFP Dry Type
Sprinklers will void the warranty. Failure
may result due to dimensional differ-
ences in the outside diameter of the
barrel. The DSB-2 has not been tested
with any non-TFP Dry Type Sprinklers
with regard to fit or performance.
Physical Characteristics
The Boot is EPDM, the Strap Ties are
nylon, and the Adhesive is ethyl cyano-
acrylate based. The adhesive is formu-
lated for instant bonding of the Boot to
metal, plastic, or rubber surfaces.
Design
Criteria
There are four items to be considered:
Dry Type Sprinklers, Clearance Hole,
Exposure Length, and Sprinkler Fitting.
Dry Type Sprinklers
This Technical Data section provides
a list of all of the compatible dry type
sprinklers and their associated techni-
cal data sheets. Refer to the applicable
technical data sheet for installation and
maintenance information for the sprin-
kler being utilized.
