Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
Model ESFR-25
Suppression Mode Fire Sprinkler Protection
For Storage In Refrigerated Areas
General
Description
The Model ESFR-25/WilFlow Freezer
Storage System is the outcome of a
collective technological effort between
Factory Mutual Research Corporation,
JRW Technologies, Inc., and Tyco Fire
Products. The system (Ref. Figure 1) is
intended for use in protecting high-
piled storage (e.g., palletized, solid
piled, or rack) within refrigerated ar-
eas. Without the need for a dry-pipe
system and/or in-rack sprinkler re-
quirements, the ESFR-25/WilFlow
Freezer Storage System provides
"suppression mode" versus "control
mode" fire protection, which had not
previously been available for refriger-
ated areas.
— IMPORTANT —
Tyco Fire Products requires that
installing contractors of the
ESFR-25/WilFlow Freezer Stor-
age System utilizing WilFlow
Fluid "B" be certified in proper
design, fabrication, installation,
and maintenance of the system.
Certification includes reference
to the Contractors Manual enti-
tled "Design, Installation, Fabri-
cation, and Maintenance of the
ESFR-25/Wilflow Freezer Stor-
age System Using Tyco Fire
Products
ESFR-25/WilFlow
Sprinklers" dated July 2002. Con-
tact your local Tyco Fire Prod-
ucts sales representative for
more details.
Individuals responsible for the
design, fabrication, installation,
or maintenance of the ESFR-
25/Wilflow Freezer Storage Sys-
tem utilizing WilFlow Fluid "B"
must have an overall under-
standing of the system.
Page 1 of 16
TM
/WilFlow
TM
This system utilizes Model ESFR-
25/WilFlow Early Suppression Fast
Response Sprinklers with a nominal
K-factor of 25.2 GPM/psi
LPM/bar
1/2
) in conjunction with sprin-
kler pipe that is filled with a patented
non-freezing fluid ("JRW Technolo-
gies, Inc." — WilFlow Fluid "B") that
has been specifically tested and ap-
proved for use with the Model ESFR-
25/WilFlow Sprinklers. The WilFlow
Fluid "B" remains in a liquid state to
temperatures as low as -20°F/-29°C
and is maintained at a pressure of 172
psi (11,9 bar) in the system piping
above of the Model F200 Alarm Check
Valve.
The automatic pressure maintenance
of the WilFlow Fluid "B" is accom-
plished by the use of the Maintenance
FLUID
SAMPLING VALVE
WITH OPERATING
CHAIN AND DELIVERY
TUBE
MAINTENANCE
PUMP AND TANK
FOR WILFLOW
FLUID "B"
ALARM
CHECK
VALVE
MODEL ESFR-25/WILFLOW FREEZER STORAGE SYSTEM
JULY, 2002
Tel: (215) 362-0700 / (800) 523-6512
Freezer Storage System:
1/2
(362.9
FIGURE 1
— TYPICAL SYSTEM ARRANGEMENT —
Customer Service/Sales:
Fax: (215) 362-5385
FREEZER
SPACE
ESFR-25
SPRINKLERS
VALVE
ROOM
(EXTERIOR
TO FREEZER
SPACE)
TFP314
TFP314
Need help?
Do you have a question about the Central ESFR-25/WilFlow and is the answer not in the manual?
Questions and answers