Viking Microfast M-5 Technical Data

May 27, 1999
1. PRODUCT NAME
Vi king Microfast Model M-5 Res i den tial
®
Pen dent Sprin kler, 5.5 K-factor
Base Part Num ber 10050
•
Avail able since 1997.
•
2. MANUFACTURER
The Vi king Cor po ra tion
210 N. In dus trial Park Road
Hastings, Mich i gan 49058, U.S.A.
Tele phone: (616) 945-9501
(877) 384-5464
Fax: (616) 945-9599
e-mail: techsvcs@vikingcorp.com
3. PRODUCT DESCRIPTION
®
The Vi king Microfast Model M-5 Res i -
den tial Pen dent Sprin kler is a small,
high-sensitivity, glass-bulb spray sprin -
kler. The sprin kler is avail able in sev eral
fin ishes and tem per a ture rat ings to meet
de sign re quire ments.
The sprin kler is listed for use be low
smooth, flat, hor i zon tal ceil ings and
ceil ings with slopes up to and in clud -
ing a 6/12 (26.6°) pitch, with spac ings
up to 20' x 20'.
The sprin kler de sign, with a K-factor of
5.5, al lows ef fi cient use of avail able wa -
ter sup plies for the hy drau li cally de -
signed fire-protection sys tem. The
small, rug ged 3 mm glass bulb and spe -
cial de flec tor com bine speed of op er a -
tion and ar eas of cov er age to meet the
res i den tial sprin kler stan dards. Dur ing
fire con di tions, the heat-sensitive liq uid
in the glass bulb ex pands, caus ing the
bulb to shat ter, re leas ing the pip-cap
and seal ing spring as sem bly. The wa ter
flow ing through the sprin kler or i fice
strikes the sprin kler de flec tor, form ing a
uni form spray pat tern to ex tin guish or
con trol the fire.
4. TECHNICAL DATA
LIST INGS AND AP PROVALS
Re fer to Ta ble 1 on pages 141 c and
Ta ble 2 on page 141 d.
Rated to 175 psi (1 207 kPa) wa ter work -
ing pres sure.
Fac tory tested pneu mat i cally to 95 psi
(655 kPa).
See ap proval charts for min i mum wa ter
sup ply re quire ments and max i mum
ar eas of cov er age.
Glass-bulb fluid tem per a ture rated to
-65 °F (-55 °C).
Spring: USA Pat ent No. 4,570,720
See pages 141 c and 141 d for tem per a -
ture rat ings.
Units of mea sure in pa ren the ses may be ap prox i ma tions.
Form No. F_ 060697
TECH NI CAL DATA
Thread Size: Nom i nal 1/2" (15 mm) NPT
K-factor: 5.5 U.S. (7,9 met ric*)
* Met ric K-factor shown is for use when pres sure is
mea sured in kPa. When pres sure is mea sured in
BAR, mul ti ply the met ric K-factor shown by 10.0.
SPRIN KLER MA TE RIALS
Frame: Brass Cast ings UNS-C84400
De flec tor: Brass UNS-C26000
Bulb: Glass, nom i nal 3 mm di am e ter
Seal: Tef lon Tape
®
Spring: Nickel Al loy
Screw: Brass UNS-C36000
Pip Cap: Cop per UNS-C11000 and
Stain less Steel UNS-S30400
SPRIN KLER FIN ISHES
Bright Brass, Chrome-Enloy
pend ing), White (Paint), and Na vajo
White (Paint)
AC CES SORIES
Re fer to the "SPRIN KLER AC CES -
SORIES" sec tion of the Vi king En gi -
neering and De sign Data book for tech -
ni cal data on ap proved sprin kler wrench
and other ac ces so ries.
5. AVAILABILITY AND SERVICE
Vi king sprin klers are avail able through a
net work of do mes tic, Ca na dian, and in -
ter na tional dis trib u tors. See the Yel low
Pages of the tele phone di rec tory for a lo -
cal dis trib u tor (listed un der "Sprin -
klers-Automatic-Fire") or con tact Vi king.
Vi king Tech ni cal Data may be found on
The Vi king Cor po ra tion's Web site at
http://www.vikingcorp.com.
The Web site may in clude a more re cent
edi tion of this Tech ni cal Data page.
6. GUARANTEES
For de tails of war ranty, re fer to Vi king's
cur rent list price sched ule or con tact The
Vi king Cor po ra tion di rectly.
7. INSTALLATION
WARNING: Vi king sprin klers are man u -
fac tured and tested to meet the rigid re -
Microfast
RES I DEN TIAL PEN DENT
SPRIN KLER, 5.5 K-FACTOR
quire ments of the ap prov ing agency.
The sprin klers are de signed to be in -
stalled in ac cor dance with rec og nized
in stal la tion stan dards. De vi a tion from
the stan dards or any al ter ation to the
sprin kler af ter it leaves the fac tory in -
clud ing, but not lim ited to: paint ing, plat -
ing, coat ing, or mod i fi ca tion, may ren der
the sprin kler in op er a tive and will au to -
mat i cally nul lify the ap proval and any
guar an tee made by The Vi king Cor po ra -
tion.
A. Sprin klers are to be in stalled in ac cor -
dance with the lat est pub lished stan -
dards of the Na tional Fire Pro tec tion
As so ci a tion, Fac tory Mu tual, Loss
Pre ven tion Coun cil, Assemblee
P l e n i e r e ,
Sachversicherer or other sim i lar or -
ga ni za tions, and also with pro vi sions
of gov ern men tal codes, or di nances,
and stan dards when ever ap pli ca ble.
For con di tions not spe cif i cally cov -
ered by the stan dards, re fer to the
"Vi king Res i den tial In stal la tion
Guide". Fi nal ap proval and ac cep -
tance of all Res i den tial Sprin kler In -
stal la tions must be ob tained from the
Au thor ity Hav ing Ju ris dic tion. Res i -
den tial sprin klers are spe cial-service
s p r i n k l e r s for use in one- and
® (pat ents
two-family dwell ings, mo bile homes,
and res i den tial por tions of other oc -
cu pan cies, where al lowed. The use
of res i den tial sprin klers may be lim -
ited due to oc cu pancy and haz ard.
The min i mum flow rate in di cated for
a listed area of cov er age must be
pro vided at the sprin kler. There fore,
the sys tem must be hy drau li cally cal -
cu lated. Re fer to the Au thor ity Hav -
ing Ju ris dic tion prior to in stal la tion.
B. Sprin klers must be han dled with care.
They must be stored in a cool, dry
place in their orig i nal con tainer.
Never in stall sprin klers that have
been dropped or dam aged in any
way. Never in stall any glass-bulb
sprin kler if the bulb is cracked or if
there is a loss of liq uid from the bulb.
If a glass bulb lacks the ap pro pri ate
amount of fluid, it should be set aside
and re turned to Vi king (or an au tho -
rized Vi king dis trib u tor) for anal y sis
as soon as pos si ble. If the sprin kler is
not re turned to Vi king, it should be
de stroyed im me di ately. Never in stall
sprin klers which have been ex posed
to tem per a tures in ex cess of max i -
Re places sprin kler page 141 a-e, dated May 21, 1998
(re vised pip-cap ma te ri als).
Sprin kler 141 a
®
MODEL M-5
V e r b a n d d e r