March 18, 1999
1. PRODUCT NAME
Viking Model HQR-2 Institutional
Quick Response Flush Pendent
Sprinkler Base Part No. 10554
Available since 1999.
Escutcheon Package
Base Part No. 10627
Available since 1999.
2. MANUFACTURER
The Viking Corporation
210 N. Industrial Park Road
Hastings, Michigan 49058 U.S.A.
Telephone:
(616) 945-9501
(877) 384-5464
Fax:
(616) 945-9599
e-mail: techsvcs@vikingcorp.com
3. PRODUCT DESCRIPTION
The Viking Model HQR-2 Institutional
Quick Response Flush Pendent Sprin-
kler is a small, flush, solder link and lever
spray sprinkler made with tamper-resis-
tant construction. This institutional sprin-
kler has been specifically designed for
use with concealed piping in institutional
mental health occupancies, correctional
facilities, or anywhere a likelihood of
tampering with fire sprinklers by the oc-
cupants may exist.
The institutional sprinkler assembly con-
sists of the sprinkler body, lockring, and
a 3-1/4" (82,6 mm) diameter thread-on
escutcheon plate. The sprinkler and es-
cutcheon plate have a chrome finish.
Tests simulating conditions of misuse
demonstrate the fusible element assem-
bly consistently breaks away when con-
nected to a 30 lb. weight dropped six
inches*.
* For a copy of the break-a-way test de-
scribed, contact The Viking Corpora-
tion.
The Viking Corporation disclaims any re-
sponsibility for damages or injury (including
death) caused by the operation or inopera-
tion of sprinklers arising out of the misuse
of or tampering with Viking
klers including, without limitation, any per-
sonal injury or death arising out of or
caused by the manipulation of, dismantling
of, or attempted use of the sprinkler or any
component as an instrument unrelated to
its intended use.
4. TECHNICAL DATA
LISTINGS: UL and C-UL Listed as
Quick Response Flush Pendent
Sprinkler (see approval chart on this
page).
Rated to 175 psi (1 207 kPa) water work-
ing pressure.
Spring: U.S.A. Patent No. 4,570,720
Thread Size: Nominal 1/2" (15 mm) NPT
Orifice Size: Nominal 1/2" (15 mm)
K-factor: Nominal 5.6 U.S. (8,1 metric*)
Note: Units of measure in parentheses may be approximations.
Form No. F_100998
TECHNICAL DATA
*Metric K-factor shown is for use when
pressure is measured in kPa. When
pressure is measured in BAR, multiply
the metric K-factor shown by 10.0.
FINISH
Sprinkler: Polished Chrome
Escutcheon Plate: Chrome
SPRINKLER ASSEMBLY MATERIALS
Sprinkler Body: Brass Casting
UNS-C84400
Deflector: Copper UNS-C19500
Seal: Teflon
Spring: Nickel Alloy
ESCUTCHEON PACKAGE MATERIALS
Escutcheon Plate: Brass UNS-C26000
Lockring: Stainless Steel UNS-S41000
ORDERING INSTRUCTIONS
To order the Viking Model HQR-2 Insti-
tutional Quick Response Flush Pendent
Sprinkler, refer to the following:
Sprinkler Base Part No. 10554 (specify
sprinkler temperature rating).
Escutcheon Package Part No. 10627
(includes lockring and escutcheon
plate).
Institutional Escutcheon Installation
Wrench Part No. 10551W/B:
Steel UNS-G10100
Available since 1999.
Flush/Concealed Sprinkler Wrenches*
A. Heavy Duty Part No. 08336W/B
Available since 1983, or
B. Light Duty Part No. 10366W/B**
Available since 1998.
* Requires a 1/2" ratchet (not available
from Viking).
** Ideal for sprinkler cabinets.
ACCESSORIES
Sprinkler Cabinet: Part No. 01731A
Retaining Flange Assembly: Part No.
MODEL HQR-2 INSTITUTIONAL QUICK
RESPONSE FLUSH PENDENT SPRINKLER
Thread
Size
®
brand sprin-
NPT BSP Inches mm
1/2" 15 mm
AVAILABLE TEMPERATURES
1
Base part number shown. For complete part number, see Price List.
2
Metric K-factor shown is for use when pressure is measured in kPa. When pressure is measured in BAR,
multiply the metric K-factor shown by 10.0.
3
This chart shows the listings and approvals available at the time of printing. Other approvals are in pro-
cess. Check with the manufacturer for any additional approvals.
4
The Model HQR-2 Institutional Quick Response Flush Pendent Sprinkler is UL and C-UL Listed as a
Quick Response Flush Pendent Sprinkler.
5
Available temperatures are 165 °F (74 °C) and 220 °F (104 °C), however, only the 165 °F (74 °C) tempera-
ture is UL and C-UL Listed at the time of this writing.
®
Tape
APPROVAL CHART
Nominal
Ordering
Orifice
Information
1
Base P/N
1/2"
15
10554
A - 165 °F (74 °C)
5
B - 220 °F (104 °C)
FOOTNOTES
Replaces page 60 a-d, dated February 25, 1999
(added disclaimer and installation tip).
MODEL HQR-2 INSTITUTIONAL
QUICK RESPONSE FLUSH
PENDENT SPRINKLER
Model HQR-2 Institutional Quick Response
Flush Pendent Sprinkler
Model HQR-2 Sprinkler Body,
Lockring, and Escutcheon Plate
(Refer to Installation Tip on Page 60 d.)
Retaining Flange
Figure 1
Temperature
Finish
A1
Nominal
Overall
K- factor
2
Length
US Metric Inches mm UL C-UL FM NYC LPCB
5.6
8,1
--
-- A1
LISTED FINISH
1 - Chrome
Sprinkler 60 a
APPROVAL
KEY
3, 4, 5
Listings
--
--
A1
--
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