GEM A/Q-71, Быстрый старт, Страница: 2 / 6

of these corrosion resistant coatings
for any given corrosive environment.
The effects of ambient temperature,
concentration
of chemicals, and
gas/chemical velocity, should be con-
sidered, as a minimum, along with the
corrosive nature of the chemical to
which the sprinklers will be exposed.
APPROVALS AND STANDARDS
Laboratory listings and approvals for
the 5.6 K-Factor Model A/Q-71 Hori-
zontal Sidewall Sprinklers and Re-
cessed Horizontal Sidewall Sprinklers
are given in Table A.
WARNING
The 5.6 K-Factor Model A/Q-71 Hori-
zontal Sidewall Sprinklers and Re-
cessed Horizontal Sidewall Sprin-
klers described herein must be
installed and maintained in compli-
ance with this document, as well as
applicable standards of the National
Fire Protection Association, in addi-
tion to the standards of any other
authorities having jurisdiction. Fail-
ure to do so may impair the integrity
of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. The installing contractor or
manufacturer should be contacted
relative to any questions.
Installation of Model A/Q-71 Hori-
zontal Sidewall Sprinklers in re-
cessed escutcheons other than the
F700 or F705 will void all sprinkler
warranties, as well as possibly void
the sprinkler’s Approvals and/or
Listings.
TECHNICAL DATA
The 5.6 K-Factor Model A/Q-71 Hori-
zontal Sidewall Sprinklers and Re-
cessed Horizontal Sidewall Sprinklers
are rated for use at a maximum service
pressure of 175 psi (12,1 bar). They
are to be installed in accordance with
the deflector-to-ceiling distance speci-
fications indicated in Table A, and the
standard rules recognized by the ap-
plicable Listing or Approval agency.
The sprinklers are available in the tem-
perature ratings and finishes indicated
in Table A.
The nominal flow “Q” in GPM (LPM) is
determined by the following formula:
where the nominal discharge coeffi-
cient “K” equals 5.6 (80,7) and “p”
equals the residual flowing pressure in
psi (bar).
The Frame of the Model A Sprinkler
(Ref. Figure A), is a dezincification re-
sistant bronze, and the Deflector is
brass. The Button and Compression
Screw are bronze. The Gasketed
Spring Plate consists of a beryllium
nickel disc spring that is sealed on
both its inside and outside faces with
a Teflon
†
gasket. The quick response
Model A/Q-71 Sprinklers utilize a 3
mm diameter frangible bulb. Table A
indicates the bulb liquid color as a
function of temperature rating.
NOTES
Inquiries concerning the appropriate-
Q K p =
†
DuPont Registered Trademark
TYPE TEMPERATURE
RATING
BULB
LIQUID
COLOR
NATURAL
BRASS
CHROME
PLATED
POLYESTER
COATED
(All Colors)
135°F/57°C
155°F/68°C
175°F/79°C
200°F/93°C
286°F/141°C
HORIZONTAL
SIDEWALL
(G7378)
SPRINKLER FINISH
Orange
Red
Yellow
Green
Blue
RECESSED
HORIZONTAL
SIDEWALL
(G7378)
WITH
F700
135°F/57°C
155°F/68°C
175°F/79°C
200°F/93°C
Orange
Red
Yellow
Green
NOTES:
1. Listed by Underwriters Laboratories, Inc. as Quick Response Sprinklers for use in Light and Ordinary Hazard Occupancies.
2. Listed by Underwriters’ Laboratories of Canada as Quick Response Sprinklers for use in Light and Ordinary Hazard Occupancies.
3. Approved by Factory Mutual Research Corporation as Quick Response Sprinklers for use in Light Hazard Occupancies.
4. Approved by the Loss Prevention Council (United Kingdom). The LPC does not rate the thermal sensitivity of horizontal sidewall
sprinklers.
5. Approved by the Scientific Services Laboratory (Australia) as Quick Response Sprinklers.
6. Accepted by the City of New York under MEA 241-94-E as Quick Response Sprinklers.
7. UL and ULC Listings, as well as FM, SSL, and NYC Approvals, are based on a deflector-to-ceiling distance of 4 to 12 inches (100 to
300 mm), whereas LPC Approval is based on 4 to 6 inches (100 to 150 mm). The top of the Deflector Hat, to which these dimensions
apply, is 9/16 inch (14.3 mm) above the centerline of waterway (Ref, Figure A).
N/A: Not Available
TABLE A
LABORATORY LISTINGS AND APPROVALS
(See Note 7 Above)
LEAD
COATED
N/A
1, 2, 3
1, 2, 4, 5, 6
1, 2, 3, 4, 5, 6
RECESSED
HORIZONTAL
SIDEWALL
(G7378)
WITH
F705
135°F/57°C Orange
1, 2, 3, 4, 5, 6 N/A
155°F/68°C Red
Yellow 175°F/79°C
200°F/93°C Green
OBSOLETE