QUICK RESPONSE
ORDINARY HAZARD DRY
HSW FUSIBLE LINK
SPRINKLERS (8.0K)
(VK2843, VK2883, & VK2923)
TECHNICAL DATA
Page 8 of 8
Form No. F_022717 18.11.01 Rev 18.1.P65
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com.
Figure 8: Dry Horizontal Sidewall Sprinkler Minimum Barrel Length Based on Ambient Temperature in the Protected Area
(Adjustable Standard Dry HSW Sprinkler is Shown)
Seal the clearance space around the sprinkler to avoid leakage of
air into the protected area and consequent formation of condensate
around the sprinkler frame, which could inhibit operation or cause
premature operation. Refer to Figure 9.
If humidity and temperature differential causes condesation on the
exposed dry sprinkler barrel, consider wrapping the exposed barrel
with insualtion, foam insulating tape, or equivalent.
Install the threaded end of the sprinker into a 1” NPT outlet of a
malleable iron
tee fitting per ANSI B 16.3 (Class 150)
or
cast iron
threaded tee fitting per ANSI 16.4 (Class 125) only.
Exposed Barrel
Outer surface of wall
Ambient Temperature
of the Protected Area*
at the Discharge End
of the Sprinkler
Exposed Barrel Ambient Temperature
40
°
F (4
°
C)
50
°
F (10
°
C) 60
°
F (16
°
C)
Exposed Minimum Barrel Length**
Face of the Tee to the Outer Surface of the Wall
Inches (mm) Inches (mm) Inches (mm)
40 °F (4 °C)
0
0
0
30 °F (-1 °C)
0
0
0
20 °F (-7 °C)
4 (100)
0
0
10 °F (-12 °C)
8 (203)
1 (25)
0
0 °F (-18 °C)
12 (305)
3 (76)
0
-10 °F (-23 °C)
14 (356)
4 (102)
1 (25)
-20 °F (-29 °C)
14 (356)
6 (152)
3 (76)
-30 °F (-34 °C)
16 (406)
8 (203)
4 (102)
-40 °F (-40 °C)
18 (457)
8 (203)
4 (102)
-50 °F (-46 °C)
20 (508)
10 (254)
6 (152)
-60 °F (-51 °C)
20 (508)
10 (254)
6 (152)
* The protected area refers to the area below the ceiling, the ambient
temperature is the temperature at the discharge end of the sprinkler.
For protected area temperatures that occur between the values
listed, use the next cooler temperature.
** The minimum reuired barrel length is not the same as the “A”
dimension. Refer to Figures 3, 5, and 6 for the “A” Dimension.
Exposed minimum barrel lengths aer inclusive up to 30 mph wind
velocities.
Figure 9: Dry Sprinkler Seal (Adjustable Standard Dry HSW Sprinkler is Shown)
Seal Part Number
19398M/W or
equivalent method.
Clearance Opening
Insulated wall
Insulated wall
Seal
Dry sprinkler seal on the exterior of the wall
Dry sprinkler seal within the wall
Replaces Form No. F_022717 Rev 18.1
(Added P65 Warning.)
