Reliable The Non-Ferrous Concealer F4FR-NF User manual

Model F4FR-NF
Non-Ferrous Quick Response
Concealed Automatic Sprinkler
for MRI Type Applications
Bulletin 002 Rev.C
The Non-Ferrous Concealer®
Features
1. Completely Non-Ferrous material designed
for MRI rooms, swimming pools, and many
corrosive environments.
2. Laboratory tested in an MRI room environ-
ment.
3. Cup and skirt fabricated from corrosion
resistant 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 finishes.
7. Ordinary temperature rating.
8. Threaded cover plate does not require clips
or springs.
Application
The Reliable Model F4FR-NF
Non-Ferrous Concealer®is the only sprin-
kler designed specifically for MRI rooms
and many corrosive environments. A test
setup of the sprinkler assembly was
tested in a laboratory 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 mag-
netic fields and field gradients that would far exceed a stan-
dard peripheral MRI room environment.
The Model F4FR-NF is the most versatile, non-corrosive,
quick response sprinkler available. This sprinkler provides
The Model F4FR-NF Non-Ferrous Concealer®is de-
signed for use where aesthetic appearance is important.
MRI rooms, swimming pools, and many corrosive environ-
ments are possible applications for this unique sprinkler.
The Model F4FR-NF is a quick response concealed
sprinkler intended for use in accordance with NFPA 13.
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 Non-Ferrous Concealer®for quick response appli-
cations uses a 135°F (57°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 cover plate and sprinkler cup as-
semblies are attached using a strong threaded engage-
ment. This threaded engagement provides ½²(13mm) of
cover adjustment. The cover plate is attached to the skirt
using 135°F (57°C) ordinary temperature classification sol-
der. When the ceiling temperature rises, the solder holding
the cover plate fuses, thus releasing the plate and expos-
ing the sprinkler inside to ambient temperature. The sub-
sequent shattering 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 located below the ceiling.
The Reliable Automatic Sprinkler Co., Inc. 103 Fairview Park Drive, Elmsford, New York , 10523
Bulletin 002 Rev.C
Listings and Approvals
1. Listed by Underwriters’ Laboratories Inc. and
UL certified for Canada (cULus).
2. NYC MEA 258-93-E
Note: Approvals are light and ordinary hazard.
UL Listing Categories
Sprinklers, Automatic & Open
Quick Response Sprinkler
UL Guide Number
VNIV
U.S. Patent No. 4,880,063.
the best form of fire protection by offering an attractive ap-
pearance and ½” (13mm) cover adjustment for ease of in-
stallation. The small diameter cover plate is easily and
positively attached and blends into the ceiling, concealing
the most dependable fire protection available, an auto-
matic sprinkler system.

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 258
²diameter 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 15-20 ft-lbs. 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 quarterly and
the sprinkler system maintained in accordance with NFPA
25. Do not clean sprinklers with soap and water, ammonia
or any other cleaning fluids. Remove any sprinkler that has
been painted ( other than factory applied) or damaged in
any way. A stock of spare sprinklers should be maintained
to allow quick replacement of damaged or operated sprin-
klers. 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 opera-
tion 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 with-
stand exposure to a magnetic field of up to 6 Tesla. The con-
cealed sprinkler frame and cover plate assembly shall be of
all brass construction, including the drop-down deflector
and sprinkler cup assembly. The water seal shall consist of
a Teflon film coated Belleville spring washer and bulb/ma-
chined cup assembly utilizing a 3 mm glass bulb thermal el-
ement. Concealed sprinklers shall have a ½” NPT with a
nominal K-factor of 5.6 (80.0). Temperature rating of both
The equipment presented in this bulletin is to be installed in accordance with the latest pertinent 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 80 years, and are installed and serviced by the most highly qualified and reputa-
ble sprinkler contractors located throughout the United States, Canada and foreign countries.
The Reliable Automatic Sprinkler Co., Inc.
[phone] Sales Offices
[phone] Sales Fax
[phone] Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
Ordering Information
Specify
1. Sprinkler Model
2. Cover Plate Finish
12
²NPT (R12) inlet - Figure 1
Installation Wrench
Model G4 Sprinkler Wrench
Revision lines indicate updated or new data.
E.G. Printed in U.S.A. 9/06 P/N 9999970241
Classification Sprinkler Cover Plate
Max. Ceiling
Temp.
Ordinary 135°F/57°C
155°F/68°C135°/57°C 100°F/38°C
Temperatures Ratings
Installation Data
Total
Adjustment
Nominal
Orifice
Nominal
K Factor
Thread Approval
Sprinkler
Identification
Number (SIN)US Metric
12²(13mm) 12²(15mm) 5.6 80 12²NPT (R½) cULus RA0212
(1) Other colors and finishes are
available. Consult factory for details.
Note: Paint or any other
coatings applied over the
factory finish will void all
approvals and warranties.
Standard Finishes:
Bronze
Bright Brass Plated
Chrome Plated
Black Plated
White
(1):
Recycled
Paper
the sprinkler and the cover plate shall be 135 °F(57°C).
Sprinkler cover plate shall be capable of providing ½” of ad-
justment and shall attach to the sprinkler cup by a strong
threaded engagement. The sprinkler cup shall be rein-
forced with an attached brass wrenching plate to protect the
sprinkler cup from damage during installation. Concealed
sprinklers shall be UL Listed for Light Hazard and Ordinary
Hazard occupancies. Standard cover finish to be: [Bronze]
[Chrome Plated] [White] [Bright Brass Plated] [Black Plated]
[Specialty – specify]. Quick Response Concealed Pendent
Sprinklers shall be the Reliable Non-Ferrous Concealer,
Model F4FR-NF, SIN RA0212.