Reliable Non-Ferrous Concealer User manual

Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 002 Rev. G
Bulletin 002 Rev. G
The Non-Ferrous Concealer™
Features
1. Completely Non-Ferrous material designed
for MRI rooms.
2. Laboratory tested in an MRI room environ-
ment.
3. Cup and skirt fabricated from brass.
4. Simple sturdy cover attachment.
5. Smooth aesthetic ceiling profile.
6. Available in bright brass, chrome and black
plated, and white or other color painted fin-
ishes.
7. Ordinary temperature rating.
8. Threaded cover plate (Solid or Perforated)
does not require clips or springs.
Listings and Approvals
Listed by Underwriters’ Laboratories Inc. and UL certi-
fied for Canada (cULus).
Note: Approvals are light and ordinary hazard.
UL Listing Categories
Sprinklers, Automatic & Open
Quick Response Sprinkler
UL Guide Number
VNIV
Model F4FR-NF
Non-Ferrous Quick Response
Concealed Automatic Sprinkler
for MRI Type Applications
either solid or perforated, in a wide variety of colors and fin-
ishes to blend into the ceiling.
The Model F4FR-NF Non-Ferrous Concealer™ is designed
for use where aesthetic appearance is important. It is a quick-
response, concealed, standard spray pendent sprinkler in-
tended for use in accordance with NFPA 13. The 1/2” (13
mm) cover plate adjustment of the Non-Ferrous Concealer™
can eliminate the need for precise cutting of drop nipples.
The threaded cover plate assembly can be adjusted without
tools to fit accurately against the ceiling. The fire protection
system need not be shut down to adjust or remove the cover
plate assembly.
Product Description
The Model F4FR-NF Non-Ferrous Concealer™ is a quick-
response sprinkler that uses either a 135°F (57°C) or a 155°F
(68°C) 3mm diameter glass bulb in a standard style sprinkler
frame with a drop-down deflector. This assembly is recessed
into the ceiling and concealed by a flat cover plate. The cov-
er plate and sprinkler cup assemblies are attached using a
strong threaded engagement. This threaded engagement
provides ½” (13mm) of cover adjustment. The cover plate is
attached to the skirt using 135°F (57°C) ordinary temperature
classification solder. When the ceiling temperature rises, the
solder holding the cover plate fuses, thus releasing the plate
and exposing the sprinkler inside. The subsequent shatter-
ing of the sprinkler bulb opens the waterway and causes the
deflector to drop into position to distribute the discharging
water. Any secure engagement between the cover plate and
cup will assure that the drop-down deflector is properly lo-
cated below the ceiling.
Application
The Reliable Model F4FR-NF Non-
Ferrous Concealer™ is designed
specifically for MRI rooms. The sprin-
kler assembly was tested in a labo-
ratory with a magnetic field up to 6
Tesla. The highest clinical magnet
system commercially available today is 3 Tesla. There was
no recorded influence of the magnetic field on the sprinklers.
The test exposed the sprinklers to magnetic fields and field
gradients that would far exceed a standard peripheral MRI
room environment.
The Model F4FR-NF is a versatile, concealed, quick-re-
sponse standard spray pendent sprinkler. This sprinkler of-
fers an attractive appearance and ½” (13mm) cover adjust-
ment for ease of installation. The small diameter cover plate
is easily and positively attached. The cover plate is available,

Reliable Automatic Sprinkler Co., Inc.
[phone] Sales Offices
[phone] Sales Fax
[phone] Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
Recycled
Paper
Revision lines indicate updated or new data.
EG. Printed in U.S.A. 04/15 P/N 9999970241
The equipment presented in this bulletin is to be installed in accordance with the latest published Standards of the National Fire Protection Association, Factory
Mutual Research Corporation, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable.
Products manufactured and distributed by Reliable have been protecting life and property for over 90 years, and are installed and serviced by the most highly
qualified and reputable sprinkler contractors located throughout the United States, Canada and foreign countries.
Installation
Do not install The Non-Ferrous Concealer™ in ceilings
which have positive pressure in the space above. In addition,
inspect all sprinklers after installation to ensure that both the
gap between the cover plate and ceiling and the four (4) slots
in the cup are open and free from any air flow impediment.
After a 25
/
8” diameter hole is cut in the ceiling, the sprinkler
is to be installed with the Model G4 Wrench. When installing
a sprinkler, the wrench is first positioned into the sprinkler/
cup assembly until two wrench tangs fully engage drive slots
in the top of the cup (there are two pairs of drive slots in the
cup). The sprinkler is then tightened into the pipe fitting to
a torque of 8 to18 ft-lbs (11 to 24 N-m). When inserting or
removing the wrench from the sprinkler/cup assembly care
should be taken to prevent damage to the sprinkler. DO NOT
WRENCH ON ANY OTHER PART OF THE SPRINKLER/CUP
ASSEMBLY.
Maintenance
The Model F4FR-NF should be inspected and the sprin-
kler system maintained in accordance with NFPA 25. Do not
clean sprinklers with soap and water, ammonia or any other
cleaning fluids. Replace any sprinkler or cover plate that has
been painted (other than factory applied) or damaged in any
way. A stock of spare sprinklers should be maintained to al-
low quick replacement of damaged or operated sprinklers.
Prior to installation, sprinklers should be maintained in the
original cartons and packaging to minimize the potential for
damage to sprinklers that would cause improper operation
or non-operation.
Engineering Specification
Sprinklers shall be cULus Listed, non-ferrous, quick re-
sponse concealed pendent sprinklers specifically designed
and tested for use in MRI type applications, and able to
withstand exposure to a magnetic field of up to 6 Tesla. The
sprinkler frame and cover plate assembly shall be of all brass
construction, including the drop-down deflector and sprin-
kler cup assembly. The water seal shall consist of a Teflon
film coated Belleville spring washer and bulb/machined cup
assembly utilizing a 3 mm glass bulb thermal element. Sprin-
klers shall have a ½” NPT with a nominal K-factor of 5.6 (80
metric). Sprinklers shall have a temperature rating of [135°F
(57°C)][155°F (68°C)]. Cover plates shall be specifically list-
ed for use with the sprinklers and shall have a temperature
rating of 135 °F (57 °C). Sprinkler Cover plates shall be ca-
pable of providing ½” of adjustment and shall attach to the
sprinkler cup by a strong threaded engagement. The sprin-
kler cup shall be reinforced with an attached brass wrench-
ing plate to protect the sprinkler cup from damage during
installation. Sprinklers shall be cULus Listed for Light Hazard
and Ordinary Hazard occupancies. Cover plate finish shall
be: [Chrome] [White] [Specialty – specify]. Quick Response
Concealed Pendent Sprinklers shall be the Reliable Non-Fer-
rous Concealer™, SIN RA0212.
Temperatures Ratings
Classification Sprinkler Cover Plate Max. Ceiling
Temp.
Ordinary 135°F/57°C
155°F/68°C 135°/57°C 100°F/38°C
Installation Data
Total
Adjustment
Nominal
Orifice
Nominal
K Factor Thread Approval
Sprinkler
Identification
Number (SIN)
US Metric
½” (13mm) ½” (15mm) 5.6 80 ½” NPT (R½) cULus RA0212
Ordering Information
Specify
1. Sprinkler Model
2. Cover Plate Finish
Cover Plate Finishes(1)
Standard Finishes
Chrome
White
Special Application
Finishes(2)
Bright Brass
Finished Bronze
Black Plating
Black Paint
Off White
Satin Chrome
(1) Other finishes and colors are
available on special order.
Consult factory for details.
Coverplate custom paint is
semi-gloss, unless specified
otherwise.
(2) For the perforated style cover-
plate, consult factory for avail-
ability on these and other cus-
tom finishes.
Installation Wrench
Model G4 Sprinkler Wrench
Note: Paint or any other coatings
applied over the factory
finish will void all approvals
and warranties.
½” NPT (R½) inlet - Figure 1