(63,5 mm
±
3,2 mm)
Hole Diameter
3-1/4" (82,6 mm)
Diameter
3/16"
(4,8mm)
2-1/2"
±
1/8"
2" 1/4"
(50,8 mm 6,4 mm)
± ±
WRENCH
FLAT
ELEVATION VIEW
CENTRAL
3/16" (4,8 mm) Minimum
11/16" (17,5 mm) Maximum
ELEVATION VIEW
CENTRAL
Design
Criteria
The Model BV4 Concealed Pendent Sprinklers are UL and
C-UL listed and NYC Approved (MEA 64-93-E Vol. II) as
standard response - standard spray sprinklers, for use in
accordance with current NFPA standards and FM Approved as
standard response - standard spray sprinklers for use in
accordance with the FM Loss Prevention Data Sheets.
The Model BV4-FR Concealed Pendent Sprinklers are UL
and C-UL listed and NYC Approved (MEA 64-93-E Vol. II)
as quick response - standard spray sprinklers, for use in
accordance with current NFPA standards and FM Approved as
standard response - standard spray sprinklers for use in
accordance with the FM Loss Prevention Data Sheets.
The Model BV4 & BV4-FR Concealed Pendent Sprinklers
are only listed with the Series BV4 Concealed Cover Plates.
The Model BV4 Concealed Pendent Sprinklers are UL
listed for use with a "Clean Room Seal", see data sheet 28-
4.0.
The Support Cup of the Model BV4 Concealed Pendent
Sprinkler has several slots in the base of the cup which
allows heat from a fire to flow past the thermal sensitive
operating element accelerating sprinkler activation. Due to
the presence of these slots, the installation of these
sprinklers in ceilings which have positive pressure in the
space above, is not permitted.
Figure 2 - Model BV4 & BV4-FR,
Concealed Pendent Sprinkler (Activated)
Figure 1 - Model BV4 & BV4-FR,
Concealed Pendent Sprinkler
Installation
The Model BV4 & BV4-FR Concealed Pendent Sprinklers
must be installed in accordance with the following instructions.
NOTES
Do not install any bulb type sprinkler if the bulb is cracked or
there is a loss of liquid from the bulb. With the sprinkler held
horizontally, a small air bubble should be present. The
diameter of the air bubble is approximately 1/16 inch (1,6 mm)
for the 155
°
F/68
°
C to 3/32 inch (2,4 mm) for the 200
°
F/93
°
C
rating.
A leak tight 1/2 inch NPT sprinkler joint should be obtained
with a torque of 7 to 14 ft.lbs. (9,5 to 19,0 Nm). A maximum of
21 ft.lbs. (28,5 Nm) of torque is to be used to install 1/2 inch
NPT sprinklers. Higher levels of torque may distort the
sprinkler inlet with consequent leakage or impairment of the
sprinkler.
Do not attempt to make up for insufficient adjustment in the
escutcheon plate by under- or overtightening the sprinkler.
Readjust the position of the sprinkler fitting to suit.
Step 1. The sprinkler must only be installed only in the
pendent position and with the centerline of the sprinkler
perpendicular to the mounting surface.
Step 2. Remove the Protective Cap.
Step 3. With pipe thread sealant applied to the pipe threads,
hand tighten the sprinkler into the sprinkler fitting.
Step 4. Wrench tighten the Sprinkler using only the BV4
Sprinkler Wrench (Ref. Figure 4). The BV4 Sprinkler Wrench is
to be applied to the Sprinkler Wrench flats only.
Step 5. Replace the Protective Cap by pushing it upwards until
it bottoms out against the Support Cup. The Protective Cap
helps prevent damage to the Deflector and Arms during ceiling
OBSOLETE
