TFP181
Page 2 of 4
Adjustment
1/2 inch (12,7 mm)
Finishes
See the Ordering Procedure section.
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Support Cup . . . . . . . . . . . .Chrome Plated Steel
Guide Pins . . . . . . . . . . . . . . . . . . Stainless Steel
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Compression Screw . . . . . . . . . . . . . . . . . .Brass
Bulb
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glass
Cap . . . . . . . . . . . . . . . . . . . . . Bronze or Copper
Sealing Assembly . .Beryllium Nickel w/TEFLON
Cover Plate . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Ejection Spring . . . . . . . . . . . . . . Stainless Steel
Design
Criteria
The TYCO Series RFII 5.6 K-factor,
“Royal Flush II” Concealed Pendent
Sprinklers are intended for fire protec-
tion systems designed in accordance
with the standard installation rules
recognized by the applicable Listing
or Approval agency; for example, UL
Listing is based on NFPA 13 and VdS
Approval is based on the CEA 4001.
For more information on LPCB and VdS
Approvals, contact Tyco Fire Protection
Products at the following office:
Enschede, Netherlands
Telephone: 31-53-428-4444
Fax: 31-53-428-3377
The Series RFII Concealed Pendent
Sprinklers are only listed and approved
with the Series RFII Concealed Cover
Plates having a factory applied finish.
NOTICE
Do not use the Series RFII in applica-
tions where the air pressure above the
ceiling is greater than that below. Down
drafts through the Sprinkler/Support
Cup Assembly can delay sprinkler
operation in a fire situation.
Operation
When exposed to heat from a fire, the
Cover Plate, normally soldered to the
Retainer at three points, falls away to
expose the Sprinkler/Support Cup
Assembly.
The Deflector — supported by the
Guide Pins — then drops down to its
operational position.
The glass bulb contains a fluid that
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter the
glass bulb, activating the sprinkler and
allowing water to flow.
Installation
The TYCO Series RFII 5.6 K-factor,
“Royal Flush II” Concealed Pendent
Sprinklers must be installed in accor-
dance with this section.
General Instructions
Do not install any bulb-type sprinkler
if the bulb is cracked or there is a loss
of liquid from the bulb. With the sprin-
kler 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) and 3/32
inch (2,4 mm) for the 200°F (93°C) tem-
perature ratings.
A leak-tight 1/2 inch NPT sprinkler
joint should be obtained by applying a
minimum to maximum torque of 7 to 14
ft.-lbs. (9,5 to 19,0 Nm). Higher levels
of torque can distort the sprinkler Inlet
with consequent leakage or impairment
of the sprinkler.
Do not attempt to compensate for
insufficient adjustment in the Sprinkler
by under- or over-tightening the Sprin-
kler/Support Cup Assembly. Re-adjust
the position of the sprinkler fitting to
suit.
Step 1.
Install the sprinkler only in the
pendent position with the center-line
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 RFII Sprinkler Wrench.
(Refer to Figure 3.) Apply the RFII
Sprinkler Wrench to the Sprinkler as
shown in Figure 3.
SPRINKLER/SUPPORT CUP
ASSEMBLY
COVER PLATE/RETAINER
ASSEMBLY
GUIDE
PINS (2)
DEFLECTOR
(DROPPED
POSITION)
COMPRESSION
SCREW
DEFLECTOR
SUPPORT
CUP WITH
ROLL FORMED
THREADS
FRAME
1/2" NPT
CAP
BULB
SEALING
ASSEMBLY
RETAINER
WITH THREAD
DIMPLES
EJECTION
SPRING
SOLDER
TABS (3)
COVER
PLATE
THREAD INTO
SUPPORT
CUP UNTIL
MOUNTING
SURFACE IS
FLUSH WITH
CEILING
FIGURE 1
MODEL RFII CONCEALED SPRINKLER
ASSEMBLY
Содержание VicFlex AH1
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