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Sprinkler 125 b
Thread Size
Maximum
Pressure
NPT
BSP
½"
–
175 psi
Pendent
15 mm
175 psi
Pendent
–
½"
–
175 psi
–
15 mm
175 psi
½"
–
175 psi
Conventional
15 mm
175 psi
Conventional
–
¾
20 mm
175 psi
Pendent
¾
20 mm
175 psi
¾
20 mm
175 psi
Conventional
–
10 mm
175 psi
Pendent
–
10 mm
175 psi
Approved Temperature Ratings
A - 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C),
and 286 °F (141 °C)
B - 155 °F (68 °C), 175 °F (79 °C), and 200 °F (93 °C)
1
Sprinkler base part number shown. For complete part number, refer to Viking's current price schedule.
2
This chart shows the listings and approvals available at the time of printing. Other approvals may be in process. Check with the manufacturer for
any additional approvals.
3
Refer to the "Sprinkler Accessories" section of the data book for approved escutcheons and other accessories.
4
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.
5
®
The Viking Microfast
Model F-1 Adjustable Escutcheon is considered a surface-mounted escutcheon because it does not allow the fusible ele-
ment of the sprinkler to be recessed behind the face of the wall or ceiling.
the maximum ambient temperature
allowed (refer to Table 1). Never in-
stall any glass-bulb sprinkler if the
bulb is cracked or if there is a loss of
liquid from the bulb. Any sprinkler
with a loss of liquid from the glass
bulb should be destroyed immedi-
ately.
C. Sprinklers must be protected from
mechanical damage. Sprinklers sub-
ject to mechanical damage must be
protected with an approved sprinkler
guard.
D. Use only sprinklers listed as corro-
sion resistant when subject to corro-
sive environments. When installing
corrosion-resistant sprinklers, take
care not to damage the corrosion-re-
sistant coating. Use only the special
wrench designed for installing coated
TECHNICAL DATA
Approval Chart
Micromatic
Sprinkler Description
Base
Style
SIN
1
Part No.
3
09224
VK134
3
09956
VK134
Upright
09226
VK138
Upright
09959
VK138
09225
VK136
09958
VK136
3
09228
VK212
Upright
09227
VK210
09229
VK214
3
09285
VK032
Upright
09284
VK030
Approved Finishes
1 - Brass and Chrome-Enloy
2 - Brass, Chrome-Enloy
and White Polyester
and recessed Viking sprinklers (any
other wrench may damage the unit).
E. Use care when locating sprinklers
near fixtures that can generate heat.
Do not install sprinklers where they
could be exposed to temperatures
exceeding the maximum recom-
mended ambient temperature for the
temperature rating used.
F. Wet-pipe systems must be provided
with adequate heat. Sprinklers sup-
plied from dry systems in areas sub-
ject to freezing must be listed dry
sprinklers, or upright or horizontal
sidewall sprinklers installed so that
water is not trapped. For dry sys-
tems, pendent sprinklers and side-
wall sprinklers installed on return
bends are permitted, where the
sprinklers, return bend, and branch
line piping are in an area maintained
®
Special Response Sprinklers
Standard Orifice
Nominal K-Factor Overall Length
4
U.S.
metric
Inches
5.6
8,1
2-3/16
5.6
8,1
2-3/16
5.6
8,1
2-3/16
5.6
8,1
2-3/16
5.6
8,1
2-3/16
5.6
8,1
2-3/16
Large Orifice
8.0
11,5
2-3/8
8.0
11,5
2-3/8
8.0
11,5
2-3/8
Small Orifice
4.2
6,0
2-3/16
4.2
6,0
2-3/16
X - Standard surface-mounted escutcheon or the Viking
Microfast
®
Y - Standard surface-mounted escutcheon or the Viking
®
,
Microfast
cessed with the Viking Micromatic
Recessed Escutcheon
Footnotes
November 18, 2005
MICROMATIC
SPECIAL RESPONSE
SPRINKLERS
Temperature
Finish
A1X
Escutcheon (if applicable)
Listings and Approvals
mm
UL C-UL FM NYC
56
–
–
–
–
A2X, B2Y
56
–
–
–
–
A2X, B2Y
56
–
–
–
–
56
–
–
–
–
56
–
–
–
–
56
–
–
–
–
60
–
–
–
–
A1X, B1Y
60
–
–
–
–
60
–
–
–
–
56
–
–
–
–
A2X, B2Y
56
–
–
–
–
Approved Escutcheons
®
Model F-1 Adjustable Escutcheon
®
Model F-1 Adjustable Escutcheon
®
Model E-1 or E-2
at or above 40 °F (4 °C). When in-
stalling Special Response Sprin-
klers on dry systems, refer to the in-
stallation standards and the Authority
Having Jurisdiction.
G. Before installation, be sure to have
the appropriate sprinkler model and
style, with the correct orifice size,
temperature rating, and response
characteristics. The sprinklers must
be installed after the piping is in place
to prevent mechanical damage.
Keep sprinklers with protective caps
or shields contained within the caps
or shields during installation and test-
ing, and any time the sprinkler is
shipped or handled.
1. Install the escutcheon, (if used)
which is designed to thread onto
the external threads of the sprin-
®
KEY
2
VdS
LPCB
–
–
A1
–
A1
–
A1
–
A1
–
–
A1
–
A1
–
–
A1
–
5
5
, or re-
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